|
Statements of Operations (USD $)
|
3 Months Ended |
|
Mar. 31, 2015
|
Mar. 31, 2014
|
| ProShares Managed Futures Strategy [Member] |
|
|
|
| Expenses |
|
|
|
| Brokerage commissions |
$ 1,334ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1] |
|
| Offering costs |
16,221us-gaap_AmortizationOfFinancingCosts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1] |
|
| Limitation by Sponsor |
(1,534)us-gaap_SponsorFees
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1] |
|
| Total expenses |
16,021us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1] |
|
| Net investment income (loss) |
(16,021)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1] |
|
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
119,252ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1] |
|
| Net realized gain (loss) |
119,252us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1] |
|
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
(21,094)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1] |
|
| Change in net unrealized appreciation/depreciation |
(21,094)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1] |
|
| Net realized and unrealized gain (loss) |
98,158us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1] |
|
| Net income (loss) |
82,137us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1],[2] |
|
| Net income (loss) per weighted-average share |
$ 0.22us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1] |
|
| Weighted-average shares outstanding |
370,010us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesManagedFuturesStrategyMember |
[1] |
|
| ProShares VIX Short-Term Futures ETF [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
9,907us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
23,668us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Expenses |
|
|
|
| Management fee |
243,400us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
377,465us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Brokerage commissions |
40,979ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
|
| Total expenses |
284,379us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
377,465us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Net investment income (loss) |
(274,472)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
(353,797)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
(8,978,330)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
15,779,707ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Short-term U.S. government and agency obligations |
2,154ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
6,606ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Net realized gain (loss) |
(8,976,176)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
15,786,313us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
(11,370,731)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
11,625,721ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Short-term U.S. government and agency obligations |
(1,144)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
(4,584)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Change in net unrealized appreciation/depreciation |
(11,371,875)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
11,621,137us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Net realized and unrealized gain (loss) |
(20,348,051)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
27,407,450us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Net income (loss) |
(20,622,523)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
27,053,653us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Net income (loss) per weighted-average share |
$ (3.51)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
$ 4.41us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| Weighted-average shares outstanding |
5,878,423us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
|
6,135,368us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixShortTermFuturesEtfMember |
| ProShares VIX Mid-Term Futures ETF [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
2,714us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
5,328us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Expenses |
|
|
|
| Management fee |
58,236us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
115,336us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Brokerage commissions |
8,037ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
|
| Total expenses |
66,273us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
115,336us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Net investment income (loss) |
(63,559)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(110,008)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
126,671ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(5,397,902)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Short-term U.S. government and agency obligations |
1,238ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
483ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Net realized gain (loss) |
127,909us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(5,397,419)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
(761,055)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
2,889,479ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Short-term U.S. government and agency obligations |
(567)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
468ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Change in net unrealized appreciation/depreciation |
(761,622)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
2,889,947us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Net realized and unrealized gain (loss) |
(633,713)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(2,507,472)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Net income (loss) |
(697,272)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
(2,617,480)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Net income (loss) per weighted-average share |
$ (1.59)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
$ (3.64)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| Weighted-average shares outstanding |
437,682us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
|
718,126us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesVixMidTermFuturesEtfMember |
| ProShares Short VIX Short-Term Futures ETF [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
29,929us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
24,205us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Expenses |
|
|
|
| Management fee |
1,039,580us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
503,918us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Brokerage commissions |
482,841ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
291,326ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Total expenses |
1,522,421us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
795,244us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Net investment income (loss) |
(1,492,492)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
(771,039)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
23,811,285ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
2,731,436ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Short-term U.S. government and agency obligations |
23,269ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
2,814ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Net realized gain (loss) |
23,834,554us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
2,734,250us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
23,344,133ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
(33,756)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Short-term U.S. government and agency obligations |
518ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
1,509ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Change in net unrealized appreciation/depreciation |
23,344,651us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
(32,247)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Net realized and unrealized gain (loss) |
47,179,205us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
2,702,003us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Net income (loss) |
45,686,713us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
1,930,964us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Net income (loss) per weighted-average share |
$ 6.08us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
$ 0.55us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| Weighted-average shares outstanding |
7,510,596us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
|
3,491,151us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortVixShortTermFuturesEtfMember |
| ProShares Ultra VIX Short-Term Futures ETF [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
32,459us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
21,276us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Expenses |
|
|
|
| Management fee |
1,178,762us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
586,132us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Brokerage commissions |
903,310ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
519,447ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Total expenses |
2,082,072us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
1,105,579us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Net investment income (loss) |
(2,049,613)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(1,084,303)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
(135,093,226)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(3,546,304)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Short-term U.S. government and agency obligations |
4,072ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(914)ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Net realized gain (loss) |
(135,089,154)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(3,547,218)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
(88,510,946)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(5,691,916)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Short-term U.S. government and agency obligations |
12ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
2,542ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Change in net unrealized appreciation/depreciation |
(88,510,934)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(5,689,374)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Net realized and unrealized gain (loss) |
(223,600,088)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(9,236,592)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Net income (loss) |
(225,649,701)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
(10,320,895)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Net income (loss) per weighted-average share |
$ (8.93)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
$ (2.53)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| Weighted-average shares outstanding |
25,266,210us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
|
3,714,601us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraVixShortTermFuturesEtfMember |
| ProShares UltraShort Bloomberg Commodity [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
528us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
308us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Expenses |
|
|
|
| Management fee |
12,846us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
8,299us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Total expenses |
12,846us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
8,299us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Net investment income (loss) |
(12,318)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
(7,991)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Net realized gain (loss) on |
|
|
|
| Swap agreements |
856,549ck0001415311_SwapAgreementsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
(635,695)ck0001415311_SwapAgreementsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Net realized gain (loss) |
856,549us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
(635,695)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Swap agreements |
(290,634)ck0001415311_SwapAgreementsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
129,934ck0001415311_SwapAgreementsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Short-term U.S. government and agency obligations |
60ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
55ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Change in net unrealized appreciation/depreciation |
(290,574)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
129,989us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Net realized and unrealized gain (loss) |
565,975us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
(505,706)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Net income (loss) |
553,657us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
(513,697)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Net income (loss) per weighted-average share |
$ 9.23us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
$ (8.56)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| Weighted-average shares outstanding |
59,997us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
|
59,997us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCommodityMember |
| ProShares UltraShort Bloomberg Crude Oil [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
20,512us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
36,973us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Expenses |
|
|
|
| Management fee |
603,835us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
623,553us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Brokerage commissions |
44,285ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
12,693ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Total expenses |
648,120us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
636,246us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Net investment income (loss) |
(627,608)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(599,273)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
18,106,720ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(2,911,251)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Swap agreements |
26,543,152ck0001415311_SwapAgreementsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(9,366,750)ck0001415311_SwapAgreementsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Short-term U.S. government and agency obligations |
7,884ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
5,289ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Net realized gain (loss) |
44,657,756us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(12,272,712)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
1,599,658ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(5,031,541)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Swap agreements |
(160,604)ck0001415311_SwapAgreementsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
1,639,969ck0001415311_SwapAgreementsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Short-term U.S. government and agency obligations |
(6,267)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(1,878)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Change in net unrealized appreciation/depreciation |
1,432,787us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(3,393,450)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Net realized and unrealized gain (loss) |
46,090,543us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(15,666,162)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Net income (loss) |
45,462,935us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
(16,265,435)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Net income (loss) per weighted-average share |
$ 14.65us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
$ (1.87)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| Weighted-average shares outstanding |
3,103,833ck0001415311_WeightedAverageSharesOutstanding
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
|
8,687,722ck0001415311_WeightedAverageSharesOutstanding
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergCrudeOilMember |
| ProShares UltraShort Bloomberg Natural Gas [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
985us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
6,683us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Expenses |
|
|
|
| Management fee |
28,373us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
131,806us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Brokerage commissions |
14,199ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
30,462ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Total expenses |
42,572us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
162,268us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Net investment income (loss) |
(41,587)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
(155,585)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
5,179,268ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
(9,215,034)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Short-term U.S. government and agency obligations |
448ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
2,052ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Net realized gain (loss) |
5,179,716us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
(9,212,982)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
(3,081,725)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
3,437,020ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Short-term U.S. government and agency obligations |
(175)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
2,243ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Change in net unrealized appreciation/depreciation |
(3,081,900)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
3,439,263us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Net realized and unrealized gain (loss) |
2,097,816us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
(5,773,719)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Net income (loss) |
2,056,229us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
(5,929,304)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Net income (loss) per weighted-average share |
$ 13.56us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
$ (4.67)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| Weighted-average shares outstanding |
151,618us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
|
1,270,507us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortBloombergNaturalGasMember |
| ProShares UltraShort Gold [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
8,196us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
15,195us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Expenses |
|
|
|
| Management fee |
193,876us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
265,552us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Brokerage commissions |
16ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
16ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Total expenses |
193,892us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
265,568us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Net investment income (loss) |
(185,696)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
(250,373)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
2,000ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
(18,560)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Forward agreements |
1,916,530ck0001415311_ForwardContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
(22,131,127)ck0001415311_ForwardContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Short-term U.S. government and agency obligations |
(600)ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
1,495ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Net realized gain (loss) |
1,917,930us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
(22,148,192)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
(1,520)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
2,340ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Forward agreements |
700,697ck0001415311_ForwardAgreementsNetUnrealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
2,898,709ck0001415311_ForwardAgreementsNetUnrealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Short-term U.S. government and agency obligations |
(1,236)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
3,529ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Change in net unrealized appreciation/depreciation |
697,941us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
2,904,578us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Net realized and unrealized gain (loss) |
2,615,871us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
(19,243,614)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Net income (loss) |
2,430,175us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
(19,493,987)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Net income (loss) per weighted-average share |
$ 2.76us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
$ (15.41)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| Weighted-average shares outstanding |
881,422us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
|
1,265,311us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortGoldMember |
| ProShares UltraShort Silver [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
6,143us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
12,957us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Expenses |
|
|
|
| Management fee |
124,355us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
204,160us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Brokerage commissions |
8ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
8ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Total expenses |
124,363us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
204,168us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Net investment income (loss) |
(118,220)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(191,211)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
(11,200)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
5,350ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Forward agreements |
(1,350,505)ck0001415311_ForwardContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(12,619,755)ck0001415311_ForwardContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Short-term U.S. government and agency obligations |
(158)ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
1,541ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Net realized gain (loss) |
(1,361,863)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(12,612,864)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
1,535ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(8,870)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Forward agreements |
(4,331,136)ck0001415311_ForwardAgreementsNetUnrealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
9,970,437ck0001415311_ForwardAgreementsNetUnrealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Short-term U.S. government and agency obligations |
267ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(518)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Change in net unrealized appreciation/depreciation |
(4,329,334)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
9,961,049us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Net realized and unrealized gain (loss) |
(5,691,197)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(2,651,815)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Net income (loss) |
(5,809,417)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
(2,843,026)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Net income (loss) per weighted-average share |
$ (11.33)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
$ (2.64)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| Weighted-average shares outstanding |
512,933us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
|
1,078,489us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortSilverMember |
| ProShares Short Euro [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
1,380us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
1,046us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Expenses |
|
|
|
| Management fee |
38,859us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
17,406us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Brokerage commissions |
868ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
239ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Total expenses |
39,727us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
17,645us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Net investment income (loss) |
(38,347)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
(16,599)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
2,057,094ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
(66,588)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Short-term U.S. government and agency obligations |
|
|
258ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Net realized gain (loss) |
2,057,094us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
(66,330)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
(275,562)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
81,131ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Short-term U.S. government and agency obligations |
183ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
(190)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Change in net unrealized appreciation/depreciation |
(275,379)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
80,941us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Net realized and unrealized gain (loss) |
1,781,715us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
14,611us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Net income (loss) |
1,743,368us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
(1,988)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Net income (loss) per weighted-average share |
$ 4.52us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
$ (0.01)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| Weighted-average shares outstanding |
385,561us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
|
207,783us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesShortEuroMember |
| ProShares UltraShort Australian Dollar [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
1,107us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
3,864us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Expenses |
|
|
|
| Management fee |
52,824us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
59,260us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Brokerage commissions |
3,997ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
3,782ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Total expenses |
56,821us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
63,042us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Net investment income (loss) |
(55,714)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(59,178)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
2,979,670ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(78,609)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Short-term U.S. government and agency obligations |
219ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
404ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Net realized gain (loss) |
2,979,889us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(78,205)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
(323,631)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(2,139,484)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Short-term U.S. government and agency obligations |
109ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(415)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Change in net unrealized appreciation/depreciation |
(323,522)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(2,139,899)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Net realized and unrealized gain (loss) |
2,656,367us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(2,218,104)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Net income (loss) |
2,600,653us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
(2,277,282)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Net income (loss) per weighted-average share |
$ 6.28us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
$ (4.13)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| Weighted-average shares outstanding |
413,894us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
|
551,672us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortAustralianDollarMember |
| ProShares UltraShort Euro [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
67,590us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
69,357us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Expenses |
|
|
|
| Management fee |
1,257,145us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
970,756us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Total expenses |
1,257,145us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
970,756us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Net investment income (loss) |
(1,189,555)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
(901,399)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Net realized gain (loss) on |
|
|
|
| Foreign currency forward contracts |
107,515,818us-gaap_ForeignCurrencyTransactionGainLossRealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
(12,182,041)us-gaap_ForeignCurrencyTransactionGainLossRealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Short-term U.S. government and agency obligations |
12,521ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
1,938ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Net realized gain (loss) |
107,528,339us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
(12,180,103)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Foreign currency forward contracts |
6,627,201us-gaap_ForeignCurrencyTransactionGainLossUnrealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
10,024,197us-gaap_ForeignCurrencyTransactionGainLossUnrealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Short-term U.S. government and agency obligations |
4,268ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
(10,487)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Change in net unrealized appreciation/depreciation |
6,631,469us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
10,013,710us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Net realized and unrealized gain (loss) |
114,159,808us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
(2,166,393)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Net income (loss) |
112,970,253us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
(3,067,792)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Net income (loss) per weighted-average share |
$ 5.20us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
$ (0.13)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| Weighted-average shares outstanding |
21,722,792us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
|
24,156,681us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortEuroMember |
| ProShares UltraShort Yen [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
45,048us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
78,224us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Expenses |
|
|
|
| Management fee |
1,161,592us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
1,028,533us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Total expenses |
1,161,592us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
1,028,533us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Net investment income (loss) |
(1,116,544)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(950,309)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Net realized gain (loss) on |
|
|
|
| Foreign currency forward contracts |
(5,107,734)us-gaap_ForeignCurrencyTransactionGainLossRealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(102,730)us-gaap_ForeignCurrencyTransactionGainLossRealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Short-term U.S. government and agency obligations |
2,443ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
8,346ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Net realized gain (loss) |
(5,105,291)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(94,384)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Foreign currency forward contracts |
2,246,532us-gaap_ForeignCurrencyTransactionGainLossUnrealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(24,540,300)us-gaap_ForeignCurrencyTransactionGainLossUnrealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Short-term U.S. government and agency obligations |
(8,606)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(2,113)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Change in net unrealized appreciation/depreciation |
2,237,926us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(24,542,413)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Net realized and unrealized gain (loss) |
(2,867,365)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(24,636,797)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Net income (loss) |
(3,983,909)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
(25,587,106)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Net income (loss) per weighted-average share |
$ (0.71)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
$ (3.93)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| Weighted-average shares outstanding |
5,629,294us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
|
6,513,738us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltrashortYenMember |
| ProShares Ultra Bloomberg Commodity [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
254us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
332us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Expenses |
|
|
|
| Management fee |
5,773us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
7,289us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Total expenses |
5,773us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
7,289us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Net investment income (loss) |
(5,519)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
(6,957)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Net realized gain (loss) on |
|
|
|
| Swap agreements |
(520,459)ck0001415311_SwapAgreementsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
537,342ck0001415311_SwapAgreementsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Short-term U.S. government and agency obligations |
14ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
|
| Net realized gain (loss) |
(520,445)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
537,342us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Swap agreements |
201,905ck0001415311_SwapAgreementsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
(129,206)ck0001415311_SwapAgreementsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Short-term U.S. government and agency obligations |
47ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
91ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Change in net unrealized appreciation/depreciation |
201,952us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
(129,115)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Net realized and unrealized gain (loss) |
(318,493)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
408,227us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Net income (loss) |
(324,012)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
401,270us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Net income (loss) per weighted-average share |
$ (1.62)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
$ 2.67us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| Weighted-average shares outstanding |
200,014us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
|
150,014us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCommodityMember |
| ProShares Ultra Bloomberg Crude Oil [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
76,242us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
21,701us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Expenses |
|
|
|
| Management fee |
1,843,701us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
345,942us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Brokerage commissions |
77,253ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
9,151ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Total expenses |
1,920,954us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
355,093us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Net investment income (loss) |
(1,844,712)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
(333,392)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
(60,398,614)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
7,591,428ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Swap agreements |
(113,284,505)ck0001415311_SwapAgreementsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
13,602,240ck0001415311_SwapAgreementsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Short-term U.S. government and agency obligations |
44,196ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
6,387ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Net realized gain (loss) |
(173,638,923)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
21,200,055us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
(17,388,654)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
1,482,653ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Swap agreements |
(2,293,122)ck0001415311_SwapAgreementsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
(997,942)ck0001415311_SwapAgreementsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Short-term U.S. government and agency obligations |
1,128ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
(8,564)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Change in net unrealized appreciation/depreciation |
(19,680,648)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
476,147us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Net realized and unrealized gain (loss) |
(193,319,571)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
21,676,202us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Net income (loss) |
(195,164,283)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
21,342,810us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Net income (loss) per weighted-average share |
$ (1.95)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
$ 4.56us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| Weighted-average shares outstanding |
100,201,948us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
|
4,680,281us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergCrudeOilMember |
| ProShares Ultra Bloomberg Natural Gas [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
5,642us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
6,273us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Expenses |
|
|
|
| Management fee |
172,808us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
105,844us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Brokerage commissions |
39,718ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
17,991ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Total expenses |
212,526us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
123,835us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Net investment income (loss) |
(206,884)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
(117,562)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
(45,836,964)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
16,803,375ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Short-term U.S. government and agency obligations |
4,455ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
2,707ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Net realized gain (loss) |
(45,832,509)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
16,806,082us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
27,451,658ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
1,805,128ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Short-term U.S. government and agency obligations |
(689)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
(2,402)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Change in net unrealized appreciation/depreciation |
27,450,969us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
1,802,726us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Net realized and unrealized gain (loss) |
(18,381,540)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
18,608,808us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Net income (loss) |
(18,588,424)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
18,491,246us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Net income (loss) per weighted-average share |
$ (3.48)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
$ 18.61us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| Weighted-average shares outstanding |
5,346,608us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
|
993,830us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraBloombergNaturalGasMember |
| ProShares Ultra Gold [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
12,738us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
13,828us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Expenses |
|
|
|
| Management fee |
240,465us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
331,351us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Brokerage commissions |
16ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
16ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Total expenses |
240,481us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
331,367us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Net investment income (loss) |
(227,743)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
(317,539)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
(2,040)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
18,520ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Forward agreements |
(2,985,716)ck0001415311_ForwardContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
23,415,100ck0001415311_ForwardContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Short-term U.S. government and agency obligations |
1,908ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
(70)ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Net realized gain (loss) |
(2,985,848)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
23,433,550us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
1,440ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
(2,300)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Forward agreements |
(390,186)ck0001415311_ForwardAgreementsNetUnrealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
(5,197,098)ck0001415311_ForwardAgreementsNetUnrealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Short-term U.S. government and agency obligations |
373ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
9,365ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Change in net unrealized appreciation/depreciation |
(388,373)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
(5,190,033)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Net realized and unrealized gain (loss) |
(3,374,221)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
18,243,517us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Net income (loss) |
(3,601,964)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
17,925,978us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Net income (loss) per weighted-average share |
$ (1.43)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
$ 5.98us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| Weighted-average shares outstanding |
2,523,347us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
|
2,996,125us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraGoldMember |
| ProShares Ultra Silver [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
38,246us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
62,602us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Expenses |
|
|
|
| Management fee |
738,077us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
1,187,904us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Brokerage commissions |
8ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
8ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Total expenses |
738,085us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
1,187,912us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Net investment income (loss) |
(699,839)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
(1,125,310)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
11,150ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
(5,350)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Forward agreements |
(17,780,243)ck0001415311_ForwardContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
73,960,922ck0001415311_ForwardContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Short-term U.S. government and agency obligations |
4,743ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
3,069ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Net realized gain (loss) |
(17,764,350)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
73,958,641us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
(1,760)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
8,870ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Forward agreements |
35,015,988ck0001415311_ForwardAgreementsNetUnrealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
(55,645,481)ck0001415311_ForwardAgreementsNetUnrealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Short-term U.S. government and agency obligations |
907ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
(3,928)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Change in net unrealized appreciation/depreciation |
35,015,135us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
(55,640,539)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Net realized and unrealized gain (loss) |
17,250,785us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
18,318,102us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Net income (loss) |
16,550,946us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
17,192,792us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Net income (loss) per weighted-average share |
$ 2.22us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
$ 2.34us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| Weighted-average shares outstanding |
7,458,200us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
|
7,332,328us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraSilverMember |
| ProShares Ultra Australian Dollar [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
226us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
558us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Expenses |
|
|
|
| Management fee |
5,997us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
7,508us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Brokerage commissions |
371ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
380ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Total expenses |
6,368us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
7,888us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Net investment income (loss) |
(6,142)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
(7,330)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
(376,158)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
(27,427)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Short-term U.S. government and agency obligations |
10ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
|
| Net realized gain (loss) |
(376,148)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
(27,427)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
39,411ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
311,205ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Short-term U.S. government and agency obligations |
(12)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
(77)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Change in net unrealized appreciation/depreciation |
39,399us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
311,128us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Net realized and unrealized gain (loss) |
(336,749)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
283,701us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Net income (loss) |
(342,891)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
276,371us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Net income (loss) per weighted-average share |
$ (3.43)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
$ 2.76us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| Weighted-average shares outstanding |
100,005us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
|
100,005us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraAustralianDollarMember |
| ProShares Ultra Euro [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
534us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
378us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Expenses |
|
|
|
| Management fee |
16,232us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
6,042us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Total expenses |
16,232us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
6,042us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Net investment income (loss) |
(15,698)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
(5,664)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Net realized gain (loss) on |
|
|
|
| Foreign currency forward contracts |
(1,065,216)us-gaap_ForeignCurrencyTransactionGainLossRealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
85,136us-gaap_ForeignCurrencyTransactionGainLossRealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Short-term U.S. government and agency obligations |
14ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
|
| Net realized gain (loss) |
(1,065,202)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
85,136us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Foreign currency forward contracts |
(675,379)us-gaap_ForeignCurrencyTransactionGainLossUnrealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
(79,978)us-gaap_ForeignCurrencyTransactionGainLossUnrealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Short-term U.S. government and agency obligations |
44ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
(39)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Change in net unrealized appreciation/depreciation |
(675,335)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
(80,017)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Net realized and unrealized gain (loss) |
(1,740,537)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
5,119us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Net income (loss) |
(1,756,235)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
(545)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Net income (loss) per weighted-average share |
$ (4.19)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
$ (0.01)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| Weighted-average shares outstanding |
418,903us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
|
100,014us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraEuroMember |
| ProShares Ultra Yen [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
291us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
435us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Expenses |
|
|
|
| Management fee |
9,381us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
6,855us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Total expenses |
9,381us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
6,855us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Net investment income (loss) |
(9,090)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
(6,420)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Net realized gain (loss) on |
|
|
|
| Foreign currency forward contracts |
(80,612)us-gaap_ForeignCurrencyTransactionGainLossRealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
(10,517)us-gaap_ForeignCurrencyTransactionGainLossRealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Short-term U.S. government and agency obligations |
(14)ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
76ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Net realized gain (loss) |
(80,626)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
(10,441)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Foreign currency forward contracts |
(25,933)us-gaap_ForeignCurrencyTransactionGainLossUnrealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
118,080us-gaap_ForeignCurrencyTransactionGainLossUnrealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Short-term U.S. government and agency obligations |
(194)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
(102)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Change in net unrealized appreciation/depreciation |
(26,127)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
117,978us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Net realized and unrealized gain (loss) |
(106,753)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
107,537us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Net income (loss) |
(115,843)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
101,117us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Net income (loss) per weighted-average share |
$ (0.41)us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
$ 0.67us-gaap_EarningsPerShareBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| Weighted-average shares outstanding |
283,347us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
|
150,014us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesUltraYenMember |
| ProShares Trust II [Member] |
|
|
|
| Investment Income |
|
|
|
| Interest |
360,671us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
405,191us-gaap_InvestmentIncomeInterest
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Expenses |
|
|
|
| Management fee |
9,026,117us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
6,890,911us-gaap_ManagementFeeExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Brokerage commissions |
1,617,240ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
885,519ck0001415311_BrokerageCommissionExpense
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Offering costs |
16,221us-gaap_AmortizationOfFinancingCosts
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
|
| Limitation by Sponsor |
(1,534)us-gaap_SponsorFees
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
|
| Total expenses |
10,658,044us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
7,776,430us-gaap_OperatingExpenses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Net investment income (loss) |
(10,297,373)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
(7,371,239)us-gaap_InvestmentIncomeNet
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Net realized gain (loss) on |
|
|
|
| Futures contracts |
(198,303,422)ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
21,662,791ck0001415311_FutureContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Swap agreements |
(86,405,263)ck0001415311_SwapAgreementsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
4,137,137ck0001415311_SwapAgreementsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Forward agreements |
(20,199,934)ck0001415311_ForwardContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
62,625,140ck0001415311_ForwardContractsNetRealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Foreign currency forward contracts |
101,262,256us-gaap_ForeignCurrencyTransactionGainLossRealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
(12,210,152)us-gaap_ForeignCurrencyTransactionGainLossRealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Short-term U.S. government and agency obligations |
108,816ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
42,481ck0001415311_NetRealizedGainLossShortTermUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Net realized gain (loss) |
(203,537,547)us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
76,257,397us-gaap_RealizedInvestmentGainsLosses
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Change in net unrealized appreciation/depreciation on |
|
|
|
| Futures contracts |
(69,298,843)ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
8,735,680ck0001415311_FutureContractsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Swap agreements |
(2,542,455)ck0001415311_SwapAgreementsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
642,755ck0001415311_SwapAgreementsNetUnrealizedGains
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Forward agreements |
30,995,363ck0001415311_ForwardAgreementsNetUnrealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
(47,973,433)ck0001415311_ForwardAgreementsNetUnrealizedGain
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Foreign currency forward contracts |
8,172,421us-gaap_ForeignCurrencyTransactionGainLossUnrealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
(14,478,001)us-gaap_ForeignCurrencyTransactionGainLossUnrealized
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Short-term U.S. government and agency obligations |
(10,974)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
(15,495)ck0001415311_UnrealizedGainLossOnUsGovernmentAndAgencyObligations
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Change in net unrealized appreciation/depreciation |
(32,684,488)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
(53,088,494)us-gaap_UnrealizedGainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Net realized and unrealized gain (loss) |
(236,222,035)us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
23,168,903us-gaap_GainLossOnInvestments
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
| Net income (loss) |
$ (246,519,408)us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
$ 15,797,664us-gaap_NetIncomeLoss
/ us-gaap_StatementBusinessSegmentsAxis
= ck0001415311_ProsharesTrustIiMember |
|
|
|