|
Schedule of Investments - Short-Term U.S. Government and Agency Obligations (Detail) (USD $)
|
Mar. 31, 2015
|
| ProShares VIX Short-Term Futures ETF [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
$ 131,184,020us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.036% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
5,181,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
5,180,968us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.026% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
3,973,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSixPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
3,972,856us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSixPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.061% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
4,724,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
4,723,859us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.017% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
9,229,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneSevenPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
9,228,680us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneSevenPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.049% Due 05/28/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
18,620,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourNinePercentageDueMayTwentyEighthTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
18,619,116us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourNinePercentageDueMayTwentyEighthTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.046% Due 06/04/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
105,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSixPercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
104,996us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSixPercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.013% Due 06/11/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
3,645,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneThreePercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
3,644,856us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneThreePercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.016% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
7,018,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneSixPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
7,017,772us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneSixPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.021% Due 06/25/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
8,833,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoOnePercentageDueJuneTwentyFiveTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
8,832,792us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoOnePercentageDueJuneTwentyFiveTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
[1] |
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.024% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
12,954,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoFourPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
12,953,006us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoFourPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.039% Due 07/09/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
3,121,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeNinePercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
3,120,828us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeNinePercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.036% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
11,521,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
11,519,812us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.043% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
10,365,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
10,363,861us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.035% Due 07/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
907,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
906,879us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.057% Due 08/06/2015 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
7,920,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSevenPercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
7,918,463us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSevenPercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
[1] |
| ProShares VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.050% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
23,080,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
23,075,276us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
[1] |
| ProShares VIX Mid-Term Futures ETF [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
27,675,412us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 0.036% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
6,167,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
6,166,364us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 0.043% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
5,374,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
5,373,967us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 0.036% Due 04/30/2015 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,593,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
1,592,942us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 0.031% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
5,405,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeOnePercentageDueAprilTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
5,404,813us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeOnePercentageDueAprilTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 0.071% Due 05/28/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
851,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenOnePercentageDueMayTwentyEightTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
850,960us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenOnePercentageDueMayTwentyEightTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 0.087% Due 06/11/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
3,675,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroEightSevenPercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
3,674,855us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroEightSevenPercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 0.015% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,773,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
1,772,942us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 0.030% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,020,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulySevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
1,019,922us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulySevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
| ProShares VIX Mid-Term Futures ETF [Member] | U.S. Treasury Bills 0.045% Due 08/06/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,819,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
1,818,647us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
[1] |
| ProShares Short VIX Short-Term Futures ETF [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
222,919,943us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.043% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
6,920,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
6,919,957us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.015% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
19,284,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
19,283,373us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.044% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
12,864,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFourPercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
12,863,615us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFourPercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.032% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
12,226,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeTwoPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
12,225,576us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeTwoPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.073% Due 05/28/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
3,786,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenThreePercentageDueMayTwentyEighthTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
3,785,820us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenThreePercentageDueMayTwentyEighthTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.061% Due 06/04/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
13,984,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
13,983,502us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.017% Due 06/11/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
4,401,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneSevenPercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
4,400,827us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneSevenPercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.041% Due 06/25/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
25,966,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueJuneTwentyFiveTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
25,965,387us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueJuneTwentyFiveTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
[1] |
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.022% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
43,634,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoTwoPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
43,630,653us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoTwoPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
[1] |
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.057% Due 07/19/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
16,047,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSevenPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
16,046,118us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSevenPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
[1] |
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.028% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
21,796,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoEightPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
21,793,753us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoEightPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.047% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
4,213,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSevenPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
4,212,537us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSevenPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.030% Due 07/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
20,999,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
20,996,201us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.061% Due 08/06/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
6,164,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
6,162,804us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
[1] |
| ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.045% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
10,652,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
10,649,820us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
[1] |
| ProShares Ultra VIX Short-Term Futures ETF [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
569,900,064us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.036% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
212,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
211,999us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.061% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
3,104,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
3,103,907us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.046% Due 06/04/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
27,212,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSixPercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
27,211,031us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSixPercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.021% Due 06/25/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
76,304,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoOnePercentageDueJuneTwentyFiveTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
76,302,199us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoOnePercentageDueJuneTwentyFiveTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.001% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
29,754,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroZeroOnePercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
29,752,923us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroZeroOnePercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.012% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
13,489,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneTwoPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
13,488,532us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneTwoPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.018% Due 05/28/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
75,945,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneEightPercentageDueMayTwentyEightTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
75,941,393us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneEightPercentageDueMayTwentyEightTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.010% Due 06/11/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
10,230,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneZeroPercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
10,229,597us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneZeroPercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.013% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
8,550,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneThreePercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
8,549,722us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneThreePercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.015% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
8,100,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
8,099,379us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
[1] |
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.040% Due 07/09/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
73,985,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourZeroPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
73,980,931us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourZeroPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
[1] |
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.027% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
46,270,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSevenPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
46,265,229us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSevenPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
[1] |
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.037% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
15,294,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSevenPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| Total short-term U.S. government and Value |
15,292,319us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSevenPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.031% Due 07/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
46,862,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeOnePercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
46,855,753us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeOnePercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
[1] |
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.046% Due 08/06/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
66,459,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSixPercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
66,446,107us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSixPercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
[1] |
| ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 0.048% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
68,183,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourEightPercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
[1] |
| Total short-term U.S. government and Value |
68,169,043us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourEightPercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
[1] |
| ProShares UltraShort Bloomberg Commodity [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
4,990,827us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
| ProShares UltraShort Bloomberg Commodity [Member] | U.S. Treasury Bills 0.016% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
607,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneSixPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
| Total short-term U.S. government and Value |
606,980us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneSixPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
| ProShares UltraShort Bloomberg Commodity [Member] | U.S. Treasury Bills 0.087% Due 06/11/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
877,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroEightSevenPercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
[2] |
| Total short-term U.S. government and Value |
876,965us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroEightSevenPercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
[2] |
| ProShares UltraShort Bloomberg Commodity [Member] | U.S. Treasury Bills 0.039% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,131,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeNinePercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
[2] |
| Total short-term U.S. government and Value |
2,130,987us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeNinePercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
[2] |
| ProShares UltraShort Bloomberg Commodity [Member] | U.S. Treasury Bills 0.050% Due 07/09/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
828,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
[2] |
| Total short-term U.S. government and Value |
827,955us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
[2] |
| ProShares UltraShort Bloomberg Commodity [Member] | U.S. Treasury Bills 0.038% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
548,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
[2] |
| Total short-term U.S. government and Value |
547,940us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
[2] |
| ProShares UltraShort Bloomberg Crude Oil [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
319,733,997us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.026% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
29,818,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSixPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
| Total short-term U.S. government and Value |
29,816,921us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSixPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.041% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
8,635,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueAprilSixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
| Total short-term U.S. government and Value |
8,634,946us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueAprilSixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.064% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
6,795,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixFourPercentageDueMayFourteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
6,794,797us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixFourPercentageDueMayFourteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.023% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
7,636,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoThreePercentageDueMayTwentyOneTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
7,635,735us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoThreePercentageDueMayTwentyOneTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.020% Due 05/28/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
40,758,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoZeroPercentageDueMayTwentyEightTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
| Total short-term U.S. government and Value |
40,756,064us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoZeroPercentageDueMayTwentyEightTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.069% Due 06/04/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
6,555,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixNinePercentageDueJuneFourTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
| Total short-term U.S. government and Value |
6,554,767us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixNinePercentageDueJuneFourTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.013% Due 06/11/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
39,293,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneThreePercentageDueJuneElevenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
39,291,452us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneThreePercentageDueJuneElevenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.002% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
31,032,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroZeroTwoPercentageDueJuneEighteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
31,030,991us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroZeroTwoPercentageDueJuneEighteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.015% Due 06/25/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
12,887,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneTwentyFiveTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
12,886,696us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneTwentyFiveTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.023% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
54,556,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoThreePercentageDueJulyTwoTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
54,551,815us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoThreePercentageDueJulyTwoTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.029% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
13,419,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoNinePercentageDueJulySixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
13,417,616us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoNinePercentageDueJulySixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.037% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
16,787,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSevenPercentageDueJulyTwentyThreeTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
16,785,155us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSevenPercentageDueJulyTwentyThreeTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.035% Due 07/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
6,214,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueJulyThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
6,213,172us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueJulyThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.050% Due 08/06/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
14,741,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueAugustSixTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
14,738,140us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueAugustSixTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.044% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
30,632,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFourPercentageDueAugustThirteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
30,625,730us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFourPercentageDueAugustThirteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
[3] |
| ProShares UltraShort Bloomberg Natural Gas [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
8,979,498us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.061% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,097,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
2,096,937us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.016% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,095,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneSixPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
1,094,964us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneSixPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.045% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
735,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
[1] |
| Total short-term U.S. government and Value |
734,850us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
[1] |
| ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.015% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,297,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
[1] |
| Total short-term U.S. government and Value |
2,296,824us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
[1] |
| ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.015% Due 06/25/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
225,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneTwentyFiveTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
224,995us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneTwentyFiveTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.042% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
613,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourTwoPercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
612,996us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourTwoPercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.056% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
790,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSixPercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
789,971us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSixPercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.044% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
469,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFourPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
468,984us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFourPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.022% Due 06/04/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
659,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoTwoPercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
658,977us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoTwoPercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
| ProShares UltraShort Gold [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
79,438,219us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| ProShares UltraShort Gold [Member] | U.S. Treasury Bills 0.035% Due 07/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,191,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| Total short-term U.S. government and Value |
1,190,841us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| ProShares UltraShort Gold [Member] | U.S. Treasury Bills 0.030% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
9,863,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulySevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
[4] |
| Total short-term U.S. government and Value |
9,862,244us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulySevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
[4] |
| ProShares UltraShort Gold [Member] | U.S. Treasury Bills 0.045% Due 08/06/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,915,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| Total short-term U.S. government and Value |
2,914,435us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| ProShares UltraShort Gold [Member] | U.S. Treasury Bills 0.038% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,562,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
[4] |
| Total short-term U.S. government and Value |
2,561,718us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
[4] |
| ProShares UltraShort Gold [Member] | U.S. Treasury Bills 0.041% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,572,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueAprilSixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| Total short-term U.S. government and Value |
2,571,984us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueAprilSixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| ProShares UltraShort Gold [Member] | U.S. Treasury Bills 0.042% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
6,386,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourTwoPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
[4] |
| Total short-term U.S. government and Value |
6,385,769us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourTwoPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
[4] |
| ProShares UltraShort Gold [Member] | U.S. Treasury Bills 0.056% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
25,151,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSixPercentageDueMayFourteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
[4] |
| Total short-term U.S. government and Value |
25,150,248us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSixPercentageDueMayFourteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
[4] |
| ProShares UltraShort Gold [Member] | U.S. Treasury Bills 0.061% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,641,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueMayTwentyOneTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
[4] |
| Total short-term U.S. government and Value |
2,640,908us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueMayTwentyOneTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
[4] |
| ProShares UltraShort Gold [Member] | U.S. Treasury Bills 0.005% Due 06/11/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
530,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroZeroFivePercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| Total short-term U.S. government and Value |
529,979us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroZeroFivePercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| ProShares UltraShort Gold [Member] | U.S. Treasury Bills 0.060% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
996,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixZeroPercentageDueJuneEighteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| Total short-term U.S. government and Value |
995,968us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixZeroPercentageDueJuneEighteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| ProShares UltraShort Gold [Member] | U.S. Treasury Bills 0.024% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,661,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoFourPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| Total short-term U.S. government and Value |
1,660,829us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoFourPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
| ProShares UltraShort Gold [Member] | U.S. Treasury Bills 0.043% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
22,978,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
[4] |
| Total short-term U.S. government and Value |
22,973,296us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
[4] |
| ProShares UltraShort Silver [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
50,001,670us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
| ProShares UltraShort Silver [Member] | U.S. Treasury Bills 0.030% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
4,494,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulySevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| Total short-term U.S. government and Value |
4,493,655us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulySevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| ProShares UltraShort Silver [Member] | U.S. Treasury Bills 0.037% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
3,881,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSevenPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| Total short-term U.S. government and Value |
3,880,574us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSevenPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| ProShares UltraShort Silver [Member] | U.S. Treasury Bills 0.056% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,504,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSixPercentageDueMayFourteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
| Total short-term U.S. government and Value |
1,503,955us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSixPercentageDueMayFourteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
| ProShares UltraShort Silver [Member] | U.S. Treasury Bills 0.061% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,355,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueMayTwentyOneTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
| Total short-term U.S. government and Value |
2,354,918us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueMayTwentyOneTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
| ProShares UltraShort Silver [Member] | U.S. Treasury Bills 0.024% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
3,518,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoFourPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| Total short-term U.S. government and Value |
3,517,637us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoFourPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| ProShares UltraShort Silver [Member] | U.S. Treasury Bills 0.054% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
7,530,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveFourPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| Total short-term U.S. government and Value |
7,529,727us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveFourPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| ProShares UltraShort Silver [Member] | U.S. Treasury Bills 0.067% Due 06/04/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
15,634,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixSevenPercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| Total short-term U.S. government and Value |
15,633,444us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixSevenPercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| ProShares UltraShort Silver [Member] | U.S. Treasury Bills 0.027% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
5,981,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSevenPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| Total short-term U.S. government and Value |
5,980,806us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSevenPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| ProShares UltraShort Silver [Member] | U.S. Treasury Bills 0.038% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
5,108,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| Total short-term U.S. government and Value |
5,106,954us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
[4] |
| ProShares Short Euro [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
18,012,179us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| ProShares Short Euro [Member] | U.S. Treasury Bills 0.045% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
679,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| Total short-term U.S. government and Value |
678,861us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| ProShares Short Euro [Member] | U.S. Treasury Bills 0.050% Due 07/09/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
206,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| Total short-term U.S. government and Value |
205,989us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| ProShares Short Euro [Member] | U.S. Treasury Bills 0.038% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
404,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| Total short-term U.S. government and Value |
403,955us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| ProShares Short Euro [Member] | U.S. Treasury Bills 0.041% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,278,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueAprilSixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| Total short-term U.S. government and Value |
2,277,986us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueAprilSixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| ProShares Short Euro [Member] | U.S. Treasury Bills 0.015% Due 06/25/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
4,804,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneTwentyFiveTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| Total short-term U.S. government and Value |
4,803,887us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneTwentyFiveTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| ProShares Short Euro [Member] | U.S. Treasury Bills 0.040% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,708,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourZeroPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| Total short-term U.S. government and Value |
1,707,938us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourZeroPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| ProShares Short Euro [Member] | U.S. Treasury Bills 0.073% Due 06/04/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
3,375,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenThreePercentageDueJuneFourTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| Total short-term U.S. government and Value |
3,374,880us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenThreePercentageDueJuneFourTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| ProShares Short Euro [Member] | U.S. Treasury Bills 0.010% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,171,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneZeroPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| Total short-term U.S. government and Value |
2,170,929us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneZeroPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| ProShares Short Euro [Member] | U.S. Treasury Bills 0.035% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,388,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| Total short-term U.S. government and Value |
2,387,754us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
| ProShares UltraShort Australian Dollar [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
16,932,493us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
| ProShares UltraShort Australian Dollar [Member] | U.S. Treasury Bills 0.043% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
756,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
| Total short-term U.S. government and Value |
755,995us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
| ProShares UltraShort Australian Dollar [Member] | U.S. Treasury Bills 0.012% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
3,305,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneTwoPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
| Total short-term U.S. government and Value |
3,304,885us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneTwoPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
| ProShares UltraShort Australian Dollar [Member] | U.S. Treasury Bills 0.038% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
199,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
[1] |
| Total short-term U.S. government and Value |
198,978us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
[1] |
| ProShares UltraShort Australian Dollar [Member] | U.S. Treasury Bills 0.015% Due 06/25/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
11,303,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneTwentyFiveTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
[1] |
| Total short-term U.S. government and Value |
11,302,733us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneTwentyFiveTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
[1] |
| ProShares UltraShort Australian Dollar [Member] | U.S. Treasury Bills 0.043% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
121,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
| Total short-term U.S. government and Value |
120,975us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
| ProShares UltraShort Australian Dollar [Member] | U.S. Treasury Bills 0.056% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
236,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSixPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
| Total short-term U.S. government and Value |
235,992us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSixPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
| ProShares UltraShort Australian Dollar [Member] | U.S. Treasury Bills 0.022% Due 05/28/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
409,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoTwoPercentageDueMayTwentyEightTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
| Total short-term U.S. government and Value |
408,981us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoTwoPercentageDueMayTwentyEightTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
| ProShares UltraShort Australian Dollar [Member] | U.S. Treasury Bills 0.050% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
604,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueJulyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
[1] |
| Total short-term U.S. government and Value |
603,954us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueJulyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
[1] |
| ProShares UltraShort Euro [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
549,451,431us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
| ProShares UltraShort Euro [Member] | U.S. Treasury Bills 0.030% Due 07/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
22,538,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
| Total short-term U.S. government and Value |
22,534,996us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
| ProShares UltraShort Euro [Member] | U.S. Treasury Bills 0.050% Due 07/09/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
25,516,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| Total short-term U.S. government and Value |
25,514,597us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| ProShares UltraShort Euro [Member] | U.S. Treasury Bills 0.041% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,717,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueAprilSixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| Total short-term U.S. government and Value |
2,716,983us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueAprilSixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| ProShares UltraShort Euro [Member] | U.S. Treasury Bills 0.073% Due 06/04/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
130,454,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenThreePercentageDueJuneFourTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| Total short-term U.S. government and Value |
130,449,356us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenThreePercentageDueJuneFourTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| ProShares UltraShort Euro [Member] | U.S. Treasury Bills 0.048% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
51,620,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourEightPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| Total short-term U.S. government and Value |
51,618,131us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourEightPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| ProShares UltraShort Euro [Member] | U.S. Treasury Bills 0.015% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
6,567,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
| Total short-term U.S. government and Value |
6,566,804us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
| ProShares UltraShort Euro [Member] | U.S. Treasury Bills 0.050% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
74,042,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
| Total short-term U.S. government and Value |
74,039,431us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
| ProShares UltraShort Euro [Member] | U.S. Treasury Bills 0.070% Due 05/28/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
6,919,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenZeroPercentageDueMayTwentyEightTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
| Total short-term U.S. government and Value |
6,918,671us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenZeroPercentageDueMayTwentyEightTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
| ProShares UltraShort Euro [Member] | U.S. Treasury Bills 0.090% Due 06/11/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
38,365,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroNineZeroPercentageDueJuneElevenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| Total short-term U.S. government and Value |
38,363,488us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroNineZeroPercentageDueJuneElevenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| ProShares UltraShort Euro [Member] | U.S. Treasury Bills 0.025% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
84,059,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoFivePercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
| Total short-term U.S. government and Value |
84,050,333us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoFivePercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
| ProShares UltraShort Euro [Member] | U.S. Treasury Bills 0.041% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
51,595,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| Total short-term U.S. government and Value |
51,589,330us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| ProShares UltraShort Euro [Member] | U.S. Treasury Bills 0.040% Due 08/06/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
55,100,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourZeroPercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| Total short-term U.S. government and Value |
55,089,311us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourZeroPercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
[5] |
| ProShares UltraShort Yen [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
444,090,783us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
| ProShares UltraShort Yen [Member] | U.S. Treasury Bills 0.045% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
19,736,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| Total short-term U.S. government and Value |
19,731,960us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| ProShares UltraShort Yen [Member] | U.S. Treasury Bills 0.041% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
81,110,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueAprilSixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
| Total short-term U.S. government and Value |
81,109,497us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueAprilSixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
| ProShares UltraShort Yen [Member] | U.S. Treasury Bills 0.056% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
17,961,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSixPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| Total short-term U.S. government and Value |
17,960,350us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveSixPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| ProShares UltraShort Yen [Member] | U.S. Treasury Bills 0.063% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,002,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixThreePercentageDueMayFourteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
| Total short-term U.S. government and Value |
1,001,970us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixThreePercentageDueMayFourteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
| ProShares UltraShort Yen [Member] | U.S. Treasury Bills 0.070% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
9,923,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenZeroPercentageDueMayTwentyOneTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| Total short-term U.S. government and Value |
9,922,656us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenZeroPercentageDueMayTwentyOneTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| ProShares UltraShort Yen [Member] | U.S. Treasury Bills 0.087% Due 06/11/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
31,920,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroEightSevenPercentageDueJuneElevenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| Total short-term U.S. government and Value |
31,918,742us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroEightSevenPercentageDueJuneElevenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| ProShares UltraShort Yen [Member] | U.S. Treasury Bills 0.026% Due 06/25/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
17,106,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSixPercentageDueJuneTwentyFiveTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| Total short-term U.S. government and Value |
17,105,596us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSixPercentageDueJuneTwentyFiveTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| ProShares UltraShort Yen [Member] | U.S. Treasury Bills 0.030% due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
5,564,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| Total short-term U.S. government and Value |
5,563,573us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| ProShares UltraShort Yen [Member] | U.S. Treasury Bills 0.040% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
62,192,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourZeroPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
| Total short-term U.S. government and Value |
62,185,165us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourZeroPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
| ProShares UltraShort Yen [Member] | U.S. Treasury Bills 0.034% Due 07/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
174,813,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFourPercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| Total short-term U.S. government and Value |
174,789,698us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFourPercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
[5] |
| ProShares UltraShort Yen [Member] | U.S. Treasury Bills 0.070% Due 08/06/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
22,806,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenZeroPercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
| Total short-term U.S. government and Value |
22,801,576us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenZeroPercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
| ProShares Ultra Bloomberg Commodity [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
2,242,809us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
| ProShares Ultra Bloomberg Commodity [Member] | U.S. Treasury Bills 0.036% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
308,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
| Total short-term U.S. government and Value |
307,968us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
| ProShares Ultra Bloomberg Commodity [Member] | U.S. Treasury Bills 0.060% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
903,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixZeroPercentageDueJuneEighteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
[2] |
| Total short-term U.S. government and Value |
902,971us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixZeroPercentageDueJuneEighteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
[2] |
| ProShares Ultra Bloomberg Commodity [Member] | U.S. Treasury Bills 0.043% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
549,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
| Total short-term U.S. government and Value |
548,888us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
| ProShares Ultra Bloomberg Commodity [Member] | U.S. Treasury Bills 0.047% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
483,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSevenPercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
[2] |
| Total short-term U.S. government and Value |
482,982us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSevenPercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
[2] |
| ProShares Ultra Bloomberg Crude Oil [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
1,066,114,169us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.061% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
15,454,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
| Total short-term U.S. government and Value |
15,453,538us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixOnePercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.036% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
78,958,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
78,949,859us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.048% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
20,506,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourEightPercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
20,501,802us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourEightPercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.038% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
19,702,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
| Total short-term U.S. government and Value |
19,701,878us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.035% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
49,089,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
| Total short-term U.S. government and Value |
49,087,223us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.027% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
107,478,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSevenPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
107,474,271us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSevenPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.023% Due 05/28/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
10,311,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoThreePercentageDueMayTwentyEightTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
10,310,510us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoThreePercentageDueMayTwentyEightTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.027% Due 06/04/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
154,348,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSevenPercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
| Total short-term U.S. government and Value |
154,342,505us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSevenPercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.007% Due 06/11/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
32,535,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroZeroSevenPercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
| Total short-term U.S. government and Value |
32,533,718us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroZeroSevenPercentageDueJuneElevenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.028% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
163,086,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoEightPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
163,080,700us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoEightPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.045% Due 06/25/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
63,939,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueJuneTwentyFiveTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
63,937,491us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueJuneTwentyFiveTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.027% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
4,114,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSevenPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
4,113,685us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSevenPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.034% Due 07/09/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
49,453,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFourPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
49,450,280us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFourPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.030% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
94,595,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
94,584,604us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeZeroPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.029% Due 07/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
105,672,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoNinePercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
105,657,914us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoNinePercentageDueJulyThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 0.051% Due 08/06/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
96,953,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveOnePercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| Total short-term U.S. government and Value |
96,934,191us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveOnePercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
[3] |
| ProShares Ultra Bloomberg Natural Gas [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
57,169,841us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.046% Due 06/04/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
910,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSixPercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
909,968us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSixPercentageDueJuneFourTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.045% Due 08/06/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
4,885,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
[1] |
| Total short-term U.S. government and Value |
4,884,052us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
[1] |
| ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.028% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
6,392,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoEightPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
[1] |
| Total short-term U.S. government and Value |
6,391,341us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoEightPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
[1] |
| ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.047% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
3,623,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSevenPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
[1] |
| Total short-term U.S. government and Value |
3,622,602us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSevenPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
[1] |
| ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.040% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
10,407,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourZeroPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
10,406,623us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourZeroPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.063% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,130,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixThreePercentageDueMayFourteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
2,129,936us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixThreePercentageDueMayFourteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.026% Due 06/25/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,447,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSixPercentageDueJuneTwentyFiveTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
2,446,942us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSixPercentageDueJuneTwentyFiveTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.052% Due 05/28/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
5,377,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveTwoPercentageDueMayTwentyEightThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
5,376,745us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveTwoPercentageDueMayTwentyEightThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.026% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
11,308,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSixPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
11,307,632us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoSixPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.047% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,672,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSevenPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
1,671,872us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSevenPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.042% Due 07/09/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
5,146,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourTwoPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| Total short-term U.S. government and Value |
5,145,717us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourTwoPercentageDueJulyNineTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
| ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 0.039% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,877,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeNinePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
[1] |
| Total short-term U.S. government and Value |
2,876,411us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeNinePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
[1] |
| ProShares Ultra Gold [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
94,234,586us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
| ProShares Ultra Gold [Member] | U.S. Treasury Bills 0.042% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
13,896,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourTwoPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
[4] |
| Total short-term U.S. government and Value |
13,895,497us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourTwoPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
[4] |
| ProShares Ultra Gold [Member] | U.S. Treasury Bills 0.038% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
17,169,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
[4] |
| Total short-term U.S. government and Value |
17,165,485us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
[4] |
| ProShares Ultra Gold [Member] | U.S. Treasury Bills 0.050% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
5,376,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
| Total short-term U.S. government and Value |
5,375,813us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveZeroPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
| ProShares Ultra Gold [Member] | U.S. Treasury Bills 0.058% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
24,874,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveEightPercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
[4] |
| Total short-term U.S. government and Value |
24,873,256us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveEightPercentageDueMayFourteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
[4] |
| ProShares Ultra Gold [Member] | U.S. Treasury Bills 0.078% Due 06/04/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
11,782,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenEightPercentageDueJuneFourTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
[4] |
| Total short-term U.S. government and Value |
11,781,581us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenEightPercentageDueJuneFourTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
[4] |
| ProShares Ultra Gold [Member] | U.S. Treasury Bills 0.058% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
13,020,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveEightPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
[4] |
| Total short-term U.S. government and Value |
13,019,577us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFiveEightPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
[4] |
| ProShares Ultra Gold [Member] | U.S. Treasury Bills 0.037% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
8,124,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSevenPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
[4] |
| Total short-term U.S. government and Value |
8,123,377us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSevenPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
[4] |
| ProShares Ultra Silver [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
294,501,633us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.041% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
16,066,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueAprilSixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
[4] |
| Total short-term U.S. government and Value |
16,065,900us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueAprilSixteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
[4] |
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.064% Due 05/14/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
27,423,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixFourPercentageDueMayFourteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
[4] |
| Total short-term U.S. government and Value |
27,422,180us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixFourPercentageDueMayFourteenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
[4] |
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.090% Due 06/11/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
43,631,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroNineZeroPercentageDueJuneElevenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| Total short-term U.S. government and Value |
43,629,281us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroNineZeroPercentageDueJuneElevenTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.047% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
6,604,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSevenPercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| Total short-term U.S. government and Value |
6,603,761us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSevenPercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.039% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
39,592,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeNinePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
[4] |
| Total short-term U.S. government and Value |
39,583,896us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeNinePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
[4] |
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.078% Due 06/04/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
4,277,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenEightPercentageDueJuneFourTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
[4] |
| Total short-term U.S. government and Value |
4,276,848us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSevenEightPercentageDueJuneFourTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
[4] |
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.004% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
5,723,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroZeroFourPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| Total short-term U.S. government and Value |
5,722,801us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroZeroFourPercentageDueMayTwentyOneTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.015% Due 05/28/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
849,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueMayTwentyEightTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| Total short-term U.S. government and Value |
848,960us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueMayTwentyEightTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.045% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
5,482,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| Total short-term U.S. government and Value |
5,481,822us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourFivePercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.038% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
45,162,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
[4] |
| Total short-term U.S. government and Value |
45,158,536us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeEightPercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
[4] |
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.020% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
7,015,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoZeroPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| Total short-term U.S. government and Value |
7,014,277us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroTwoZeroPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.035% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
4,248,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| Total short-term U.S. government and Value |
4,247,533us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
| ProShares Ultra Silver [Member] | U.S. Treasury Bills 0.066% Due 08/06/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
88,463,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixSixPercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
[4] |
| Total short-term U.S. government and Value |
88,445,838us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroSixSixPercentageDueAugustSixTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
[4] |
| ProShares Ultra Australian Dollar [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
2,201,920us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
| ProShares Ultra Australian Dollar [Member] | U.S. Treasury Bills 0.040% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
2,202,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourZeroPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
| Total short-term U.S. government and Value |
2,201,920us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourZeroPercentageDueAprilThirtyTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
| ProShares Ultra Euro [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
15,242,869us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| ProShares Ultra Euro [Member] | U.S. Treasury Bills 0.036% Due 04/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
242,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| Total short-term U.S. government and Value |
241,999us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueAprilSixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| ProShares Ultra Euro [Member] | U.S. Treasury Bills 0.016% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,575,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneSixPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| Total short-term U.S. government and Value |
1,574,949us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneSixPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| ProShares Ultra Euro [Member] | U.S. Treasury Bills 0.036% Due 07/16/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,656,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| Total short-term U.S. government and Value |
1,655,829us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeSixPercentageDueJulySixteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| ProShares Ultra Euro [Member] | U.S. Treasury Bills 0.015% Due 06/25/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,129,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneTwentyFiveTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| Total short-term U.S. government and Value |
1,128,973us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueJuneTwentyFiveTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| ProShares Ultra Euro [Member] | U.S. Treasury Bills 0.015% Due 05/28/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,743,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueMayTwentyEightTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| Total short-term U.S. government and Value |
1,742,917us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneFivePercentageDueMayTwentyEightTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| ProShares Ultra Euro [Member] | U.S. Treasury Bills 0.034% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
911,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFourPercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
[5] |
| Total short-term U.S. government and Value |
910,967us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFourPercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
[5] |
| ProShares Ultra Euro [Member] | U.S. Treasury Bills 0.035% Due 05/21/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,000,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueMayTwentyOneTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| Total short-term U.S. government and Value |
999,965us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFivePercentageDueMayTwentyOneTwoThousandFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
| ProShares Ultra Euro [Member] | U.S. Treasury Bills 0.041% Due 07/02/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
1,136,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
[5] |
| Total short-term U.S. government and Value |
1,135,913us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourOnePercentageDueJulyTwoTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
[5] |
| ProShares Ultra Euro [Member] | U.S. Treasury Bills 0.034% Due 07/23/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
5,852,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFourPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
[5] |
| Total short-term U.S. government and Value |
5,851,357us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroThreeFourPercentageDueJulyTwentyThreeTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
[5] |
| ProShares Ultra Yen [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Total short-term U.S. government and Value |
5,210,191us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
| ProShares Ultra Yen [Member] | U.S. Treasury Bills 0.043% Due 08/13/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
3,694,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
[5] |
| Total short-term U.S. government and Value |
3,693,244us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourThreePercentageDueAugustThirteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
[5] |
| ProShares Ultra Yen [Member] | U.S. Treasury Bills 0.010% Due 06/18/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
586,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneZeroPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
[5] |
| Total short-term U.S. government and Value |
585,981us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroOneZeroPercentageDueJuneEighteenTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
[5] |
| ProShares Ultra Yen [Member] | U.S. Treasury Bills 0.047% Due 04/30/15 [Member] |
|
|
| Schedule of Investments [Line Items] |
|
|
| Principal Amount |
931,000us-gaap_InvestmentOwnedBalancePrincipalAmount
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSevenPercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
[5] |
| Total short-term U.S. government and Value |
$ 930,966us-gaap_FinancialInstrumentsOwnedUSGovernmentAndAgencyObligationsAtFairValue
/ us-gaap_InvestmentTypeAxis
= ck0001415311_UsTreasuryBillsZeroPointZeroFourSevenPercentageDueAprilThirtyTwoThousandAndFifteenMember
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
[5] |
|
|
|