v3.24.3
Statements of Operations - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2024
Jun. 30, 2023
Investment Income        
Interest $ 36,592,197 $ 35,172,821 $ 67,381,467 $ 69,048,196
Expenses        
Management fee 7,448,120 9,417,542 14,618,380 18,671,870
Brokerage commissions 1,987,015 2,541,487 3,830,567 4,916,119
Futures account fees 169,922 426,130 400,385 828,892
Total expenses 9,605,057 12,385,159 18,849,332 24,416,881
Net investment income (loss) 26,987,140 22,787,662 48,532,135 44,631,315
Net realized gain (loss) on        
Net realized gain (loss) 340,305,548 (1,030,834,546) 140,335,396 (2,028,937,766)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (127,143,015) 426,320,433 (180,306,004) 244,613,184
Net realized and unrealized gain (loss) 213,162,533 (604,514,113) (39,970,608) (1,784,324,582)
Net income (loss) 240,149,673 (581,726,451) 8,561,527 (1,739,693,267)
Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 192,957,311 (903,140,314) (95,441,709) (1,989,000,881)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (68,861,582) 370,415,259 (169,234,257) 337,853,836
Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 147,613,685 (127,144,869) 237,098,199 (36,920,176)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (58,891,791) 53,364,477 (13,314,347) (96,981,521)
Foreign Currency Forward Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (266,644) (367,022) (1,392,235) (2,820,838)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 550,617 2,274,360 2,368,057 3,691,623
Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 1,196 (182,341) 71,141 (195,871)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 59,741 266,337 (125,457) 49,246
ProShares Short VIX Short-Term Futures ETF [Member]        
Investment Income        
Interest 3,457,223 2,437,210 6,766,508 4,546,332
Expenses        
Management fee 702,645 617,036 1,443,041 1,182,813
Brokerage commissions 170,317 123,422 341,916 249,925
Total expenses 872,962 740,458 1,784,957 1,432,738
Net investment income (loss) 2,584,261 1,696,752 4,981,551 3,113,594
Net realized gain (loss) on        
Net realized gain (loss) 26,761,918 65,202,331 55,276,535 94,806,479
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (4,167,221) 9,673,101 (8,822,042) 12,828,278
Net realized and unrealized gain (loss) 22,594,697 74,875,432 46,454,493 107,634,757
Net income (loss) 25,178,958 76,572,184 51,436,044 110,748,351
ProShares Short VIX Short-Term Futures ETF [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 26,761,918 65,228,142 55,258,866 94,832,290
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (4,177,838) 9,658,017 (8,805,425) 12,836,824
ProShares Short VIX Short-Term Futures ETF [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 (25,811) 17,669 (25,811)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 10,617 15,084 (16,617) (8,546)
ProShares Ultra Bloomberg Crude Oil [Member]        
Investment Income        
Interest 6,506,199 5,878,092 11,516,649 11,886,000
Expenses        
Management fee 1,344,787 1,744,998 2,821,804 3,619,616
Brokerage commissions 42,976 94,303 104,780 188,647
Total expenses 1,387,763 1,839,301 2,926,584 3,808,263
Net investment income (loss) 5,118,436 4,038,791 8,590,065 8,077,737
Net realized gain (loss) on        
Net realized gain (loss) 6,957,617 (76,414,795) 100,088,722 9,365,632
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (738,826) 45,539,157 54,345,016 (92,671,285)
Net realized and unrealized gain (loss) 6,218,791 (30,875,638) 154,433,738 (83,305,653)
Net income (loss) 11,337,227 (26,836,847) 163,023,803 (75,227,916)
ProShares Ultra Bloomberg Crude Oil [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 11,985,445 29,371,809 28,452,282 40,205,833
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (9,029,300) (20,075,857) 16,397,677 (16,873,410)
ProShares Ultra Bloomberg Crude Oil [Member] | Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (5,028,524) (105,727,226) 71,623,239 (30,780,823)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 8,281,227 65,510,145 37,992,657 (75,851,818)
ProShares Ultra Bloomberg Crude Oil [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 696 (59,378) 13,201 (59,378)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 9,247 104,869 (45,318) 53,943
ProShares Ultra Bloomberg Natural Gas [Member]        
Investment Income        
Interest 6,418,687 8,866,705 12,870,827 17,825,228
Expenses        
Management fee 1,323,880 2,588,571 2,773,307 4,916,981
Brokerage commissions 785,377 1,145,371 1,488,469 2,098,150
Futures account fees 53,176 211,785 142,161 399,478
Total expenses 2,162,433 3,945,727 4,403,937 7,414,609
Net investment income (loss) 4,256,254 4,920,978 8,466,890 10,410,619
Net realized gain (loss) on        
Net realized gain (loss) 211,772,181 (616,886,915) (30,408,733) (1,678,521,779)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (60,263,391) 658,057,024 (196,656,346) 605,047,334
Net realized and unrealized gain (loss) 151,508,790 41,170,109 (227,065,079) (1,073,474,445)
Net income (loss) 155,765,044 46,091,087 (218,598,189) (1,063,063,826)
ProShares Ultra Bloomberg Natural Gas [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 211,772,181 (539,203,219) (30,408,733) (1,639,994,302)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (60,263,391) 572,850,724 (196,642,739) 558,949,406
ProShares Ultra Bloomberg Natural Gas [Member] | Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 (77,680,050) 0 (38,520,261)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 0 85,176,576 0 46,088,257
ProShares Ultra Bloomberg Natural Gas [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 (3,646) 0 (7,216)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 0 29,724 (13,607) 9,671
ProShares Ultra Euro [Member]        
Investment Income        
Interest 70,817 88,182 149,303 185,419
Expenses        
Management fee 13,944 19,851 29,879 44,097
Total expenses 13,944 19,851 29,879 44,097
Net investment income (loss) 56,873 68,331 119,424 141,322
Net realized gain (loss) on        
Net realized gain (loss) (219,350) 78,291 (74,776) 358,570
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 62,167 (79,023) (447,347) (175,968)
Net realized and unrealized gain (loss) (157,183) (732) (522,123) 182,602
Net income (loss) (100,310) 67,599 (402,699) 323,924
ProShares Ultra Euro [Member] | Foreign Currency Forward Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (219,350) 78,291 (74,776) 358,570
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 62,167 (79,023) (447,347) (175,968)
ProShares Ultra Gold [Member]        
Investment Income        
Interest 2,819,359 1,983,196 4,833,274 3,632,210
Expenses        
Management fee 546,388 474,261 982,991 901,375
Brokerage commissions 8,123 6,925 17,996 15,540
Total expenses 554,511 481,186 1,000,987 916,915
Net investment income (loss) 2,264,848 1,502,010 3,832,287 2,715,295
Net realized gain (loss) on        
Net realized gain (loss) 31,567,821 17,168,107 50,042,103 27,968,003
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (17,226,689) (32,854,842) (14,505,497) (22,166,463)
Net realized and unrealized gain (loss) 14,341,132 (15,686,735) 35,536,606 5,801,540
Net income (loss) 16,605,980 (14,184,725) 39,368,893 8,516,835
ProShares Ultra Gold [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 7,565,606 5,160,588 14,530,658 7,921,167
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (3,144,847) (10,482,142) (4,863,967) (8,627,819)
ProShares Ultra Gold [Member] | Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 24,002,215 12,035,981 35,508,434 20,075,298
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (14,087,684) (22,406,342) (9,631,250) (13,549,549)
ProShares Ultra Gold [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 (28,462) 3,011 (28,462)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 5,842 33,642 (10,280) 10,905
ProShares Ultra Silver [Member]        
Investment Income        
Interest 6,245,723 3,701,182 9,880,580 7,075,578
Expenses        
Management fee 1,244,817 976,505 2,118,718 1,848,064
Brokerage commissions 56,180 47,075 84,222 73,637
Total expenses 1,300,997 1,023,580 2,202,940 1,921,701
Net investment income (loss) 4,944,726 2,677,602 7,677,640 5,153,877
Net realized gain (loss) on        
Net realized gain (loss) 220,680,441 64,615,443 216,214,526 35,871,579
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (87,279,257) (119,017,342) (65,670,658) (96,665,222)
Net realized and unrealized gain (loss) 133,401,184 (54,401,899) 150,543,868 (60,793,643)
Net income (loss) 138,345,910 (51,724,297) 158,221,508 (55,639,766)
ProShares Ultra Silver [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 81,641,058 17,097,790 76,002,276 20,739,536
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (29,355,888) (38,652,527) (19,075,042) (39,404,490)
ProShares Ultra Silver [Member] | Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 139,039,383 47,564,510 140,207,453 15,178,900
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (57,934,788) (80,409,195) (46,575,112) (57,269,574)
ProShares Ultra Silver [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 (46,857) 4,797 (46,857)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 11,419 44,380 (20,504) 8,842
ProShares Ultra VIX Short-Term Futures ETF [Member]        
Investment Income        
Interest 2,335,823 4,750,595 5,094,065 9,167,250
Expenses        
Management fee 553,814 1,330,081 1,221,345 2,703,851
Brokerage commissions 454,606 712,511 941,152 1,490,212
Futures account fees 63,964 126,999 150,134 250,360
Total expenses 1,072,384 2,169,591 2,312,631 4,444,423
Net investment income (loss) 1,263,439 2,581,004 2,781,434 4,722,827
Net realized gain (loss) on        
Net realized gain (loss) (57,412,686) (426,300,356) (148,405,278) (608,541,564)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 11,698,440 (45,315,177) 24,979,009 (43,277,650)
Net realized and unrealized gain (loss) (45,714,246) (471,615,533) (123,426,269) (651,819,214)
Net income (loss) (44,450,807) (469,034,529) (120,644,835) (647,096,387)
ProShares Ultra VIX Short-Term Futures ETF [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (57,413,186) (426,304,544) (148,416,415) (608,537,974)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 11,693,863 (45,320,517) 24,978,991 (43,274,267)
ProShares Ultra VIX Short-Term Futures ETF [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 500 4,188 11,137 (3,590)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 4,577 5,340 18 (3,383)
ProShares Ultra Yen [Member]        
Investment Income        
Interest 483,557 114,980 853,811 235,098
Expenses        
Management fee 99,372 25,330 176,608 55,890
Total expenses 99,372 25,330 176,608 55,890
Net investment income (loss) 384,185 89,650 677,203 179,208
Net realized gain (loss) on        
Net realized gain (loss) (5,365,623) (770,142) (7,397,198) (1,068,950)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (842,412) (1,348,109) (4,421,343) (1,842,176)
Net realized and unrealized gain (loss) (6,208,035) (2,118,251) (11,818,541) (2,911,126)
Net income (loss) (5,823,850) (2,028,601) (11,141,338) (2,731,918)
ProShares Ultra Yen [Member] | Foreign Currency Forward Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (5,365,623) (770,142) (7,397,198) (1,068,950)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (842,412) (1,348,109) (4,421,343) (1,842,176)
ProShares UltraShort Bloomberg Crude Oil [Member]        
Investment Income        
Interest 2,290,280 1,560,028 4,533,047 3,563,237
Expenses        
Management fee 440,755 359,177 892,340 844,057
Brokerage commissions 43,839 60,079 97,800 125,836
Total expenses 484,594 419,256 990,140 969,893
Net investment income (loss) 1,805,686 1,140,772 3,542,907 2,593,344
Net realized gain (loss) on        
Net realized gain (loss) (143,424) 28,034,524 (12,652,246) 55,649,291
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (1,552,095) (8,216,608) (36,001,228) 2,739,622
Net realized and unrealized gain (loss) (1,695,519) 19,817,916 (48,653,474) 58,388,913
Net income (loss) 110,167 20,958,688 (45,110,567) 60,982,257
ProShares UltraShort Bloomberg Crude Oil [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (143,424) 28,046,795 (12,659,025) 55,661,074
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (1,560,618) (8,229,852) (35,992,048) 2,741,263
ProShares UltraShort Bloomberg Crude Oil [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 (12,271) 6,779 (11,783)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 8,523 13,244 (9,180) (1,641)
ProShares UltraShort Bloomberg Natural Gas [Member]        
Investment Income        
Interest 1,577,496 1,344,889 2,924,574 2,531,641
Expenses        
Management fee 310,060 302,274 572,504 599,136
Brokerage commissions 304,998 233,647 566,252 443,288
Futures account fees 10,978 26,758 27,011 56,367
Total expenses 626,036 562,679 1,165,767 1,098,791
Net investment income (loss) 951,460 782,210 1,758,807 1,432,850
Net realized gain (loss) on        
Net realized gain (loss) (44,563,292) 48,737,843 89,322 232,143,809
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 20,550,559 (61,250,100) 44,377,047 (106,209,898)
Net realized and unrealized gain (loss) (24,012,733) (12,512,257) 44,466,369 125,933,911
Net income (loss) (23,061,273) (11,730,047) 46,225,176 127,366,761
ProShares UltraShort Bloomberg Natural Gas [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (44,563,292) 48,736,428 91,065 232,145,072
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 20,547,016 (61,246,927) 44,377,650 (106,199,730)
ProShares UltraShort Bloomberg Natural Gas [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 1,415 (1,743) (1,263)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 3,543 (3,173) (603) (10,168)
ProShares UltraShort Euro [Member]        
Investment Income        
Interest 429,872 593,746 888,189 1,240,866
Expenses        
Management fee 90,978 131,101 186,228 292,669
Total expenses 90,978 131,101 186,228 292,669
Net investment income (loss) 338,894 462,645 701,961 948,197
Net realized gain (loss) on        
Net realized gain (loss) 900,760 (1,045,942) (38,460) (2,453,253)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (199,005) 556,469 2,768,728 697,680
Net realized and unrealized gain (loss) 701,755 (489,473) 2,730,268 (1,755,573)
Net income (loss) 1,040,649 (26,828) 3,432,229 (807,376)
ProShares UltraShort Euro [Member] | Foreign Currency Forward Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 900,760 (1,045,942) (43,101) (2,453,253)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (199,005) 556,469 2,768,728 702,482
ProShares UltraShort Euro [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 0 4,641 0
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 0 0 0 (4,802)
ProShares UltraShort Gold [Member]        
Investment Income        
Interest 176,727 184,052 319,930 316,614
Expenses        
Management fee 39,309 42,869 71,710 79,242
Brokerage commissions 1,283 1,605 2,218 2,966
Total expenses 40,592 44,474 73,928 82,208
Net investment income (loss) 136,135 139,578 246,002 234,406
Net realized gain (loss) on        
Net realized gain (loss) (2,516,474) (1,553,151) (3,914,287) (2,584,032)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 1,264,436 2,758,921 919,857 2,103,219
Net realized and unrealized gain (loss) (1,252,038) 1,205,770 (2,994,430) (480,813)
Net income (loss) (1,115,903) 1,345,348 (2,748,428) (246,407)
ProShares UltraShort Gold [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (976,285) (562,109) (1,626,248) (676,159)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 374,155 1,132,962 311,336 1,069,691
ProShares UltraShort Gold [Member] | Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (1,540,189) (991,042) (2,288,039) (1,907,873)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 890,281 1,625,959 608,521 1,033,528
ProShares UltraShort Silver [Member]        
Investment Income        
Interest 597,421 323,734 978,854 523,812
Expenses        
Management fee 139,041 82,417 230,179 142,585
Brokerage commissions 13,863 8,958 19,887 14,661
Total expenses 152,904 91,375 250,066 157,246
Net investment income (loss) 444,517 232,359 728,788 366,566
Net realized gain (loss) on        
Net realized gain (loss) (16,070,138) 1,112,690 (10,290,118) 3,826,313
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 4,902,824 5,650,294 3,484,222 4,467,058
Net realized and unrealized gain (loss) (11,167,314) 6,762,984 (6,805,896) 8,293,371
Net income (loss) (10,722,797) 6,995,343 (6,077,108) 8,659,937
ProShares UltraShort Silver [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (7,210,938) 3,460,638 (2,337,230) 4,792,636
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 943,651 1,782,960 (806,615) 1,899,423
ProShares UltraShort Silver [Member] | Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (8,859,200) (2,347,042) (7,952,888) (965,417)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 3,959,173 3,867,334 4,290,837 2,567,635
ProShares UltraShort Silver [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 (906) 0 (906)
ProShares UltraShort Yen [Member]        
Investment Income        
Interest 456,243 255,354 771,660 459,554
Expenses        
Management fee 96,949 58,179 163,082 108,991
Total expenses 96,949 58,179 163,082 108,991
Net investment income (loss) 359,294 197,175 608,578 350,563
Net realized gain (loss) on        
Net realized gain (loss) 4,417,569 1,370,771 6,126,381 342,795
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 1,529,867 3,145,023 4,468,019 5,004,524
Net realized and unrealized gain (loss) 5,947,436 4,515,794 10,594,400 5,347,319
Net income (loss) 6,306,730 4,712,969 11,202,978 5,697,882
ProShares UltraShort Yen [Member] | Foreign Currency Forward Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 4,417,569 1,370,771 6,122,840 342,795
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 1,529,867 3,145,023 4,468,019 5,007,285
ProShares UltraShort Yen [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 0 3,541 0
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 0 0 0 (2,761)
ProShares VIX Mid-Term Futures ETF [Member]        
Investment Income        
Interest 1,106,849 650,585 1,622,013 1,298,505
Expenses        
Management fee 191,320 134,066 288,207 284,189
Brokerage commissions 66,049 12,200 86,212 21,369
Futures account fees 10,537 11,856 16,541 23,296
Total expenses 267,906 158,122 390,960 328,854
Net investment income (loss) 838,943 492,463 1,231,053 969,651
Net realized gain (loss) on        
Net realized gain (loss) (8,949,418) (6,943,333) (15,054,609) (22,764,053)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 1,095,379 (9,675,102) 3,885,170 (5,092,642)
Net realized and unrealized gain (loss) (7,854,039) (16,618,435) (11,169,439) (27,856,695)
Net income (loss) (7,015,096) (16,125,972) (9,938,386) (26,887,044)
ProShares VIX Mid-Term Futures ETF [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (8,949,418) (6,943,333) (15,057,887) (22,764,053)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 1,092,860 (9,677,526) 3,882,651 (5,086,991)
ProShares VIX Mid-Term Futures ETF [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 0 3,278 0
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 2,519 2,424 2,519 (5,651)
ProShares VIX Short-Term Futures ETF [Member]        
Investment Income        
Interest 1,619,921 2,440,291 3,378,183 4,560,852
Expenses        
Management fee 310,061 530,826 646,437 1,048,314
Brokerage commissions 39,404 95,391 79,663 191,888
Futures account fees 31,267 48,732 64,538 99,391
Total expenses 380,732 674,949 790,638 1,339,593
Net investment income (loss) 1,239,189 1,765,342 2,587,545 3,221,259
Net realized gain (loss) on        
Net realized gain (loss) (27,512,354) (127,239,912) (59,266,488) (173,336,606)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 4,022,209 (21,303,253) 6,991,389 (20,173,227)
Net realized and unrealized gain (loss) (23,490,145) (148,543,165) (52,275,099) (193,509,833)
Net income (loss) (22,250,956) (146,777,823) (49,687,554) (190,288,574)
ProShares VIX Short-Term Futures ETF [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (27,512,354) (127,229,299) (59,271,318) (173,326,001)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 4,018,755 (21,324,056) 7,003,274 (20,176,064)
ProShares VIX Short-Term Futures ETF [Member] | Short-term U.S. Government and Agency Obligations [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 (10,613) 4,830 (10,605)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) $ 3,454 $ 20,803 $ (11,885) $ 2,837