Investments - Effect of Derivative Instruments on Statements of Operations (Detail) - USD ($)
|
3 Months Ended |
6 Months Ended |
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
$ (1,095,488,840)
|
$ 406,051,436
|
$ (90,749,924)
|
$ 653,081,996
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(139,515,325)
|
(256,039,064)
|
(692,782,517)
|
(96,121,534)
|
| ProShares Short VIX Short-Term Futures ETF [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
32,421,061
|
2,460
|
13,730,650
|
(17,634,393)
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
15,210,500
|
13,637,223
|
(3,781,548)
|
13,394,285
|
| ProShares Ultra VIX Short-Term Futures ETF [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(192,467,810)
|
56,043,330
|
(116,442,087)
|
155,964,717
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(56,863,823)
|
(88,992,737)
|
23,175,576
|
(69,359,376)
|
| ProShares VIX Mid-Term Futures ETF [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(1,140,314)
|
4,727,074
|
(587,399)
|
5,434,266
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(9,099,123)
|
(1,835,417)
|
(1,563,390)
|
(210,933)
|
| ProShares VIX Short-Term Futures ETF [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(66,726,736)
|
44,564,970
|
(32,827,862)
|
76,774,233
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(30,205,248)
|
(21,523,329)
|
4,465,074
|
(14,541,848)
|
| ProShares Ultra Bloomberg Crude Oil [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
145,524,039
|
(28,591,884)
|
368,528,515
|
(13,075,023)
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(187,941,169)
|
(41,335,786)
|
(64,126,188)
|
(41,800,136)
|
| ProShares Ultra Bloomberg Natural Gas [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(57,377,925)
|
(12,342,333)
|
15,028,178
|
210,262,895
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
31,159,508
|
(84,894,992)
|
136,933,487
|
(127,033,885)
|
| ProShares Ultra Gold [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(236,731,105)
|
86,158,116
|
(7,878,443)
|
144,586,702
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(6,380,474)
|
(61,454,302)
|
(142,007,741)
|
(5,429,584)
|
| ProShares Ultra Silver [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(612,192,543)
|
99,198,831
|
(252,637,503)
|
153,909,618
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(198,181,181)
|
(73,497,185)
|
(917,573,769)
|
65,780,286
|
| ProShares UltraShort Bloomberg Crude Oil [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(233,392,515)
|
32,209,630
|
(330,228,695)
|
41,143,529
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
329,969,647
|
14,026,830
|
272,945,806
|
17,511,380
|
| ProShares UltraShort Bloomberg Natural Gas [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
69,531,049
|
124,592,646
|
249,415,454
|
(97,235,066)
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(41,475,060)
|
80,955,495
|
(53,365,642)
|
66,357,458
|
| ProShares UltraShort Gold [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
18,754,588
|
5,846,099
|
3,721,435
|
2,403,495
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
8,062,621
|
5,933,528
|
21,345,466
|
1,607,812
|
| ProShares UltraShort Silver [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
38,498,831
|
(3,327,232)
|
733,506
|
(6,436,218)
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
5,539,198
|
2,491,447
|
29,367,087
|
(2,560,601)
|
| ProShares Ultra Euro [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(45,142)
|
616,633
|
(224,784)
|
777,150
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(78,046)
|
415,771
|
(188,584)
|
610,648
|
| ProShares Ultra Yen [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(1,505,101)
|
1,428,203
|
(4,423,294)
|
3,070,845
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(699,201)
|
2,283,730
|
234,335
|
4,951,669
|
| ProShares UltraShort Euro [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
276,107
|
(3,936,874)
|
888,993
|
(5,567,827)
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
686,886
|
(1,538,631)
|
1,292,682
|
(2,883,349)
|
| ProShares UltraShort Yen [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
1,084,676
|
(1,138,233)
|
2,453,412
|
(1,296,927)
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
779,640
|
(710,709)
|
64,832
|
(2,515,360)
|
| Not Designated as Hedging Instrument [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(1,096,055,640)
|
406,060,567
|
(91,890,721)
|
653,091,197
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(139,533,238)
|
(256,052,072)
|
(692,458,825)
|
(95,995,909)
|
| Not Designated as Hedging Instrument [Member] | VIX Futures Contracts [Member] | Net realized gain (loss) on futures contracts/ changes in unrealized appreciation (depreciation) on futures contracts [Member] | ProShares Short VIX Short-Term Futures ETF [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
32,396,869
|
2,005
|
13,691,256
|
(17,634,848)
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
15,231,904
|
13,636,368
|
(3,768,368)
|
13,401,093
|
| Not Designated as Hedging Instrument [Member] | VIX Futures Contracts [Member] | Net realized gain (loss) on futures contracts/ changes in unrealized appreciation (depreciation) on futures contracts [Member] | ProShares Ultra VIX Short-Term Futures ETF [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(192,491,371)
|
56,045,179
|
(116,494,011)
|
155,966,636
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(56,859,023)
|
(88,993,838)
|
23,187,545
|
(69,352,758)
|
| Not Designated as Hedging Instrument [Member] | VIX Futures Contracts [Member] | Net realized gain (loss) on futures contracts/ changes in unrealized appreciation (depreciation) on futures contracts [Member] | ProShares VIX Mid-Term Futures ETF [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(1,150,253)
|
4,726,990
|
(600,547)
|
5,434,182
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(9,095,985)
|
(1,835,417)
|
(1,566,090)
|
(210,933)
|
| Not Designated as Hedging Instrument [Member] | VIX Futures Contracts [Member] | Net realized gain (loss) on futures contracts/ changes in unrealized appreciation (depreciation) on futures contracts [Member] | ProShares VIX Short-Term Futures ETF [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(66,742,664)
|
44,564,343
|
(32,860,343)
|
76,773,606
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(30,185,924)
|
(21,523,129)
|
4,484,303
|
(14,535,040)
|
| Not Designated as Hedging Instrument [Member] | Commodity 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] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
145,508,043
|
(28,592,206)
|
368,500,233
|
(13,075,345)
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(187,993,469)
|
(41,338,039)
|
(64,111,399)
|
(41,773,534)
|
| Not Designated as Hedging Instrument [Member] | Commodity 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] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(57,395,050)
|
(12,342,109)
|
14,982,765
|
210,263,119
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
31,126,328
|
(84,894,683)
|
136,975,690
|
(127,006,905)
|
| Not Designated as Hedging Instrument [Member] | Commodity 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] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(236,877,923)
|
86,158,039
|
(8,183,433)
|
144,586,625
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(6,316,066)
|
(61,456,710)
|
(141,939,756)
|
(5,410,106)
|
| Not Designated as Hedging Instrument [Member] | Commodity 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] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(612,395,722)
|
99,198,843
|
(253,066,422)
|
153,909,630
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(198,143,507)
|
(73,501,501)
|
(917,463,926)
|
65,813,122
|
| Not Designated as Hedging Instrument [Member] | Commodity 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] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(233,450,154)
|
32,210,113
|
(330,310,811)
|
41,144,012
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
329,873,520
|
14,026,553
|
273,002,005
|
17,511,380
|
| Not Designated as Hedging Instrument [Member] | Commodity 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] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
69,502,325
|
124,600,984
|
249,344,756
|
(97,226,728)
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(41,472,530)
|
80,953,188
|
(53,365,916)
|
66,356,953
|
| Not Designated as Hedging Instrument [Member] | Commodity 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] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
18,747,899
|
5,846,099
|
3,708,862
|
2,403,495
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
8,065,368
|
5,933,528
|
21,340,956
|
1,607,812
|
| Not Designated as Hedging Instrument [Member] | Commodity 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] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
38,495,230
|
(3,327,232)
|
721,350
|
(6,436,218)
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
5,542,072
|
2,491,447
|
29,367,688
|
(2,560,601)
|
| Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts [Member] | Net realized gain (loss) on foreign currency forward contracts/ changes in unrealized appreciation (depreciation) on foreign currency forward contracts [Member] | ProShares Ultra Euro [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(45,142)
|
616,633
|
(224,784)
|
777,150
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(77,992)
|
415,771
|
(188,530)
|
610,648
|
| Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts [Member] | Net realized gain (loss) on foreign currency forward contracts/ changes in unrealized appreciation (depreciation) on foreign currency forward contracts [Member] | ProShares Ultra Yen [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
(1,512,145)
|
1,428,203
|
(4,432,905)
|
3,070,845
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
(696,534)
|
2,283,730
|
232,323
|
4,951,669
|
| Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts [Member] | Net realized gain (loss) on foreign currency forward contracts/ changes in unrealized appreciation (depreciation) on foreign currency forward contracts [Member] | ProShares UltraShort Euro [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
272,363
|
(3,936,993)
|
883,645
|
(5,567,946)
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
688,073
|
(1,538,631)
|
1,290,950
|
(2,883,349)
|
| Not Designated as Hedging Instrument [Member] | Foreign Exchange Contracts [Member] | Net realized gain (loss) on foreign currency forward contracts/ changes in unrealized appreciation (depreciation) on foreign currency forward contracts [Member] | ProShares UltraShort Yen [Member] |
|
|
|
|
| Derivative Instruments, Gain (Loss) [Line Items] |
|
|
|
|
| Realized Gain (Loss) on Derivatives Recognized in Income |
1,082,055
|
(1,138,324)
|
2,449,668
|
(1,297,018)
|
| Change in Unrealized Appreciation/ Depreciation on Derivatives Recognized in Income |
$ 780,527
|
$ (710,709)
|
$ 63,700
|
$ (2,515,360)
|