v3.24.1.u1

Investments - Effect of Derivative Instruments on Statements of Operations (Detail) - USD ($) | 3 Months Ended
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Mar. 31, 2024 | Mar. 31, 2023
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | $ (199,970,152) | $ (998,103,220)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (53,162,989) | (181,707,249)
Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (200,040,097) | (998,089,690)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (52,977,791) | (181,490,158)
ProShares Short VIX Short-Term Futures ETF [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 28,514,617 | 29,604,148
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (4,654,821) | 3,155,177
ProShares Ultra VIX Short-Term Futures ETF [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (90,992,592) | (182,241,208)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 13,280,569 | 2,037,527
ProShares VIX Mid-Term Futures ETF [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (6,105,191) | (15,820,720)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 2,789,791 | 4,582,460
ProShares VIX Short-Term Futures ETF [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (31,754,134) | (46,096,694)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 2,969,180 | 1,130,026
ProShares Ultra Bloomberg Crude Oil [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 93,131,105 | 85,780,427
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 55,083,842 | (138,210,442)
ProShares Ultra Bloomberg Natural Gas [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (242,180,914) | (1,061,634,864)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (136,392,955) | (53,009,690)
ProShares Ultra Gold [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 18,474,282 | 10,799,896
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 2,721,192 | 10,688,379
ProShares Ultra Silver [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (4,465,915) | (28,743,864)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 21,608,599 | 22,352,120
ProShares UltraShort Bloomberg Crude Oil [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (12,508,822) | 27,614,767
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (34,449,133) | 10,956,230
ProShares UltraShort Bloomberg Natural Gas [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 44,652,614 | 183,405,966
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 23,826,488 | (44,959,798)
ProShares UltraShort Gold [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (1,397,813) | (1,030,881)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (344,579) | (655,702)
ProShares UltraShort Silver [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 5,780,020 | 2,713,623
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (1,418,602) | (1,183,236)
ProShares Ultra Euro [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 144,574 | 280,279
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (509,514) | (96,945)
ProShares Ultra Yen [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (2,031,575) | (298,808)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (3,578,931) | (494,067)
ProShares UltraShort Euro [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (939,220) | (1,407,311)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 2,967,733 | 141,211
ProShares UltraShort Yen [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 1,708,812 | (1,027,976)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 2,938,152 | 1,859,501
VIX Futures Contracts [Member] | Net realized gain (loss) on futures contracts and/or swap agreements/ changes in unrealized appreciation (depreciation) on futures contracts and/or swap agreements [Member] | ProShares Short VIX Short-Term Futures ETF [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 28,496,948 | 29,604,148
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (4,627,587) | 3,178,807
VIX Futures Contracts [Member] | Net realized gain (loss) on futures contracts and/or swap agreements/ changes in unrealized appreciation (depreciation) on futures contracts and/or swap agreements [Member] | ProShares Ultra VIX Short-Term Futures ETF [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (91,003,229) | (182,233,430)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 13,285,128 | 2,046,250
VIX Futures Contracts [Member] | Net realized gain (loss) on futures contracts and/or swap agreements/ changes in unrealized appreciation (depreciation) on futures contracts and/or swap agreements [Member] | ProShares VIX Mid-Term Futures ETF [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (6,108,469) | (15,820,720)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 2,789,791 | 4,590,535
VIX Futures Contracts [Member] | Net realized gain (loss) on futures contracts and/or swap agreements/ changes in unrealized appreciation (depreciation) on futures contracts and/or swap agreements [Member] | ProShares VIX Short-Term Futures ETF [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (31,758,964) | (46,096,702)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 2,984,519 | 1,147,992
Commodities Contracts [Member] | Net realized gain (loss) on futures contracts and swap agreements/ changes in unrealized appreciation (depreciation) on futures contracts and swap agreements [Member] | ProShares Ultra Bloomberg Crude Oil [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 93,118,600 | 85,780,427
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 55,138,407 | (138,159,516)
Commodities Contracts [Member] | Net realized gain (loss) on futures contracts and swap agreements/ changes in unrealized appreciation (depreciation) on futures contracts and swap agreements [Member] | ProShares Ultra Bloomberg Natural Gas [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (242,180,914) | (1,061,631,294)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (136,379,348) | (52,989,637)
Commodities Contracts [Member] | Net realized gain (loss) on futures contracts and swap agreements/ changes in unrealized appreciation (depreciation) on futures contracts and swap agreements [Member] | ProShares Ultra Gold [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 18,471,271 | 10,799,896
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 2,737,314 | 10,711,116
Commodities Contracts [Member] | Net realized gain (loss) on futures contracts and swap agreements/ changes in unrealized appreciation (depreciation) on futures contracts and swap agreements [Member] | ProShares Ultra Silver [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (4,470,712) | (28,743,864)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 21,640,522 | 22,387,658
Commodities Contracts [Member] | Net realized gain (loss) on futures contracts and swap agreements/ changes in unrealized appreciation (depreciation) on futures contracts and swap agreements [Member] | ProShares UltraShort Bloomberg Crude Oil [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (12,515,601) | 27,614,279
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (34,431,430) | 10,971,115
Commodities Contracts [Member] | Net realized gain (loss) on futures contracts and swap agreements/ changes in unrealized appreciation (depreciation) on futures contracts and swap agreements [Member] | ProShares UltraShort Bloomberg Natural Gas [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 44,654,357 | 183,408,644
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 23,830,634 | (44,952,803)
Commodities Contracts [Member] | Net realized gain (loss) on futures contracts and swap agreements/ changes in unrealized appreciation (depreciation) on futures contracts and swap agreements [Member] | ProShares UltraShort Gold [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (1,397,813) | (1,030,881)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (344,579) | (655,702)
Commodities Contracts [Member] | Net realized gain (loss) on futures contracts and swap agreements/ changes in unrealized appreciation (depreciation) on futures contracts and swap agreements [Member] | ProShares UltraShort Silver [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 5,780,020 | 2,713,623
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (1,418,602) | (1,183,236)
Foreign Exchange Contracts [Member] | Net realized gain (loss) on futures and/ or foreign currency forward contracts/ changes in unrealized appreciation (depreciation) on futures and/ or foreign currency forward contracts [Member] | ProShares Ultra Euro [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 144,574 | 280,279
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (509,514) | (96,945)
Foreign Exchange Contracts [Member] | Net realized gain (loss) on futures and/ or foreign currency forward contracts/ changes in unrealized appreciation (depreciation) on futures and/ or foreign currency forward contracts [Member] | ProShares Ultra Yen [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (2,031,575) | (298,808)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | (3,578,931) | (494,067)
Foreign Exchange Contracts [Member] | Net realized gain (loss) on futures and/ or foreign currency forward contracts/ changes in unrealized appreciation (depreciation) on futures and/ or foreign currency forward contracts [Member] | ProShares UltraShort Euro [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | (943,861) | (1,407,311)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | 2,967,733 | 146,013
Foreign Exchange Contracts [Member] | Net realized gain (loss) on futures and/ or foreign currency forward contracts/ changes in unrealized appreciation (depreciation) on futures and/ or foreign currency forward contracts [Member] | ProShares UltraShort Yen [Member] | Not Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Realized Gain (Loss) on Derivatives Recognized in Income | 1,705,271 | (1,027,976)
Change in Unrealized Appreciation (Depreciation) on Derivatives Recognized in Income | $ 2,938,152 | $ 1,862,262

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