v3.8.0.1

Schedule of Investments - Foreign Currency Forward Contracts (Detail) - 9 months ended Sep. 30, 2017 | USD ($) | JPY (¥) | EUR (€)
--- | --- | --- | ---
ProShares UltraShort Euro [Member] | Contracts to Sell [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Unrealized Appreciation (Depreciation) | [1] | $ 4,465,552 |  |
ProShares UltraShort Euro [Member] | Contracts to Sell [Member] | Euro with Goldman Sachs International [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ 230,249,569 |  | € 194,781,925
Unrealized Appreciation (Depreciation) | [1] | $ 2,076,933 |  |
ProShares UltraShort Euro [Member] | Contracts to Sell [Member] | Euro with UBS AG [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ 268,035,604 |  | 226,747,400
Unrealized Appreciation (Depreciation) | [1] | 2,388,619 |  |
ProShares UltraShort Euro [Member] | Contracts to Purchase [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Unrealized Appreciation (Depreciation) | [1] | $ (565,859) |  |
ProShares UltraShort Euro [Member] | Contracts to Purchase [Member] | Euro with Goldman Sachs International [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ 3,754,078 |  | 3,175,800
Unrealized Appreciation (Depreciation) | [1] | $ (42,918) |  |
ProShares UltraShort Euro [Member] | Contracts to Purchase [Member] | Euro with UBS AG [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ 41,453,378 |  | 35,067,900
Unrealized Appreciation (Depreciation) | [1] | (522,941) |  |
ProShares UltraShort Yen [Member] | Contracts to Sell [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Unrealized Appreciation (Depreciation) | [1] | $ 9,817,020 |  |
ProShares UltraShort Yen [Member] | Contracts to Sell [Member] | Yen with Goldman Sachs International [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ (155,971,917) | ¥ (17,548,070,400) |
Unrealized Appreciation (Depreciation) | [1] | $ 4,818,307 |  |
ProShares UltraShort Yen [Member] | Contracts to Sell [Member] | Yen with UBS AG [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ (168,708,480) | (18,981,034,100) |
Unrealized Appreciation (Depreciation) | [1] | 4,998,713 |  |
ProShares UltraShort Yen [Member] | Contracts to Purchase [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Unrealized Appreciation (Depreciation) | [1] | $ (570,141) |  |
ProShares UltraShort Yen [Member] | Contracts to Purchase [Member] | Yen with Goldman Sachs International [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ 5,082,606 | 571,833,200 |
Unrealized Appreciation (Depreciation) | [1] | $ (229,963) |  |
ProShares UltraShort Yen [Member] | Contracts to Purchase [Member] | Yen with UBS AG [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ 22,573,065 | 2,539,647,800 |
Unrealized Appreciation (Depreciation) | [1] | (340,178) |  |
ProShares Ultra Yen [Member] | Contracts to Sell [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Unrealized Appreciation (Depreciation) | [1] | $ 12,351 |  |
ProShares Ultra Yen [Member] | Contracts to Sell [Member] | Yen with Goldman Sachs International [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ (206,978) | (23,286,700) |
Unrealized Appreciation (Depreciation) | [1] | $ 1,919 |  |
ProShares Ultra Yen [Member] | Contracts to Sell [Member] | Yen with UBS AG [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ (508,163) | (57,172,300) |
Unrealized Appreciation (Depreciation) | [1] | 10,432 |  |
ProShares Ultra Yen [Member] | Contracts to Purchase [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Unrealized Appreciation (Depreciation) | [1] | $ (407,660) |  |
ProShares Ultra Yen [Member] | Contracts to Purchase [Member] | Yen with Goldman Sachs International [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ 6,539,365 | 735,730,100 |
Unrealized Appreciation (Depreciation) | [1] | $ (218,377) |  |
ProShares Ultra Yen [Member] | Contracts to Purchase [Member] | Yen with UBS AG [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ 5,798,323 | ¥ 652,357,100 |
Unrealized Appreciation (Depreciation) | [1] | (189,283) |  |
ProShares Ultra Euro [Member] | Contracts to Sell [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Unrealized Appreciation (Depreciation) | [1] | $ 82,079 |  |
ProShares Ultra Euro [Member] | Contracts to Sell [Member] | Euro with Goldman Sachs International [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ (1,966,405) |  | (1,663,500)
Unrealized Appreciation (Depreciation) | [1] | $ 33,031 |  |
ProShares Ultra Euro [Member] | Contracts to Sell [Member] | Euro with UBS AG [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ (5,533,004) |  | (4,680,700)
Unrealized Appreciation (Depreciation) | [1] | 49,048 |  |
ProShares Ultra Euro [Member] | Contracts to Purchase [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Unrealized Appreciation (Depreciation) | [1] | $ (291,439) |  |
ProShares Ultra Euro [Member] | Contracts to Purchase [Member] | Euro with Goldman Sachs International [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ 14,138,996 |  | 11,961,025
Unrealized Appreciation (Depreciation) | [1] | $ (136,124) |  |
ProShares Ultra Euro [Member] | Contracts to Purchase [Member] | Euro with UBS AG [Member] |  |  |  |
Schedule of Investments [Line Items] |  |  |  |
Settlement Date | [1] | Oct. 06, 2017 |  |
Notional Amount | [1] | $ 20,774,032 |  | € 17,574,000
Unrealized Appreciation (Depreciation) | [1] | $ (155,315) |  |
[1] | The positions and counterparties herein are as of September 30, 2017. The Funds continually evaluate different counterparties for their transactions and counterparties are subject to change. New counterparties can be added at any time.

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