v3.22.2
Statements of Operations - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Investment Income        
Interest [1] $ 3,593,473 $ 536,552 $ 4,620,355 $ 1,086,294
Expenses        
Management fee [1] 11,608,051 10,325,523 22,225,008 22,494,533
Brokerage commissions [1] 1,894,153 1,992,098 3,802,918 4,895,898
Futures account fees [1] 1,030,206 1,696,496 2,835,129 4,549,900
Total expenses [1] 14,532,410 14,014,117 28,863,055 31,940,331
Net investment income (loss) [1] (10,938,937) (13,477,565) (24,242,700) (30,854,037)
Net realized gain (loss) on        
Net realized gain (loss) [1] 62,229,521 (496,622,596) 1,179,151,366 (973,808,867)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) [1] (46,560,109) 335,030,119 (264,473,936) (54,817,824)
Net realized and unrealized gain (loss) [1] 15,669,412 (161,592,477) 914,677,430 (1,028,626,691)
Net income (loss) [1] 4,730,475 (175,070,042) 890,434,730 (1,059,480,728)
Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) [1] 101,692,223 (653,015,480) 510,140,998 (1,187,149,284)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) [1] 10,131,053 328,994,435 62,770,119 71,883,297
Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) [1] (48,816,783) 155,633,013 656,366,206 211,397,494
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) [1] (57,491,778) 8,316,702 (326,324,133) (131,251,444)
Foreign Currency Forward Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) [1] 9,774,456 757,734 12,836,962 1,921,025
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) [1] 1,568,995 (2,047,874) 3,105,964 4,677,182
U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) [1] (420,375) 2,137 (192,800) 21,898
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) [1] (768,379) (233,144) (4,025,886) (126,859)
ProShares Short VIX Short-Term Futures ETF [Member]        
Investment Income        
Interest 225,134 33,687 319,477 67,577
Expenses        
Management fee 1,034,361 1,317,153 2,020,898 2,359,722
Brokerage commissions 177,552 253,949 365,250 429,859
Futures account fees 107,221 328,342 324,251 586,119
Total expenses 1,319,134 1,899,444 2,710,399 3,375,700
Net investment income (loss) (1,094,000) (1,865,757) (2,390,922) (3,308,123)
Net realized gain (loss) on        
Net realized gain (loss) (13,105,212) 109,337,017 (54,216,320) 133,546,434
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (34,507,780) (13,308,130) (30,209,873) 28,816,988
Net realized and unrealized gain (loss) (47,612,992) 96,028,887 (84,426,193) 162,363,422
Net income (loss) (48,706,992) 94,163,130 (86,817,115) 159,055,299
ProShares Short VIX Short-Term Futures ETF [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (13,029,194) 109,337,017 (54,129,808) 133,546,434
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (34,466,848) (13,290,409) (29,757,664) 28,831,483
ProShares Short VIX Short-Term Futures ETF [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (76,018) 0 (86,512) 0
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (40,932) (17,721) (452,209) (14,495)
ProShares Ultra Bloomberg Crude Oil [Member]        
Investment Income        
Interest 1,264,011 111,333 1,572,891 279,408
Expenses        
Management fee 3,098,904 2,794,292 6,183,716 5,329,377
Brokerage commissions 140,210 210,012 335,751 503,212
Futures account fees 109,601 317,748 362,288 416,685
Total expenses 3,348,715 3,322,052 6,881,755 6,249,274
Net investment income (loss) (2,084,704) (3,210,719) (5,308,864) (5,969,866)
Net realized gain (loss) on        
Net realized gain (loss) 363,291,439 320,505,659 1,162,711,373 654,856,887
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (211,544,109) 157,919,139 (306,208,096) 192,954,795
Net realized and unrealized gain (loss) 151,747,330 478,424,798 856,503,277 847,811,682
Net income (loss) 149,662,626 475,214,079 851,194,413 841,841,816
ProShares Ultra Bloomberg Crude Oil [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 244,497,710 255,445,062 510,907,542 447,121,563
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (187,136,364) 77,503,699 (89,000,726) 171,488,571
ProShares Ultra Bloomberg Crude Oil [Member] | Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 118,798,382 65,060,597 651,811,620 207,735,324
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (24,001,881) 80,496,098 (216,215,448) 21,505,309
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (4,653)   (7,789) 0
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (405,864) (80,658) (991,922) (39,085)
ProShares Ultra Bloomberg Natural Gas [Member]        
Investment Income        
Interest 146,470 11,544 186,051 25,359
Expenses        
Management fee 534,624 152,958 931,234 407,773
Brokerage commissions 114,706 63,062 203,158 155,359
Futures account fees 63,213 12,887 134,330 94,735
Total expenses 712,543 228,907 1,268,722 657,867
Net investment income (loss) (566,073) (217,363) (1,082,671) (632,508)
Net realized gain (loss) on        
Net realized gain (loss) 164,990,694 4,901,288 241,207,930 46,484,224
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (271,288,469) 28,347,917 (186,420,725) 10,549,049
Net realized and unrealized gain (loss) (106,297,775) 33,249,205 54,787,205 57,033,273
Net income (loss) (106,863,848) 33,031,842 53,704,534 56,400,765
ProShares Ultra Bloomberg Natural Gas [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 164,990,694 4,901,288 241,211,382 46,483,673
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (271,251,560) 28,350,804 (186,220,796) 10,550,021
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 0 (3,452) 551
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (36,909) (2,887) (199,929) (972)
ProShares Ultra Euro [Member]        
Investment Income        
Interest 6,522 438 11,109 1,022
Expenses        
Management fee 15,037 9,416 35,315 19,494
Total expenses 15,037 9,416 35,315 19,494
Net investment income (loss) (8,515) (8,978) (24,206) (18,472)
Net realized gain (loss) on        
Net realized gain (loss) (446,365) 95,412 (893,344) 68,070
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (281,290) (13,219) (419,715) (324,271)
Net realized and unrealized gain (loss) (727,655) 82,193 (1,313,059) (256,201)
Net income (loss) (736,170) 73,215 (1,337,265) (274,673)
ProShares Ultra Euro [Member] | Foreign Currency Forward Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (446,365) 95,412 (887,395) 68,070
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (282,077) (13,092) (415,047) (324,232)
ProShares Ultra Euro [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 0 (5,949) 0
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 787 (127) (4,668) (39)
ProShares Ultra Gold [Member]        
Investment Income        
Interest 319,154 20,094 414,267 55,921
Expenses        
Management fee 716,148 568,040 1,387,563 1,136,247
Brokerage commissions 14,064 8,665 35,723 23,553
Futures account fees 8,664 13,354 28,169 45,756
Total expenses 738,876 590,059 1,451,455 1,205,556
Net investment income (loss) (419,722) (569,965) (1,037,188) (1,149,635)
Net realized gain (loss) on        
Net realized gain (loss) (57,901,083) 45,506,367 (82,487) (5,741,520)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 4,971,043 (33,478,303) (19,849,468) (34,710,806)
Net realized and unrealized gain (loss) (52,930,040) 12,028,064 (19,931,955) (40,452,326)
Net income (loss) (53,349,762) 11,458,099 (20,969,143) (41,601,961)
ProShares Ultra Gold [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (28,896,339) 7,294,570 (8,706,319) (9,511,327)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 3,312,504 (4,648,838) (4,587,403) (6,902,587)
ProShares Ultra Gold [Member] | Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (29,004,744) 38,211,797 8,623,832 3,769,562
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 1,658,698 (28,812,307) (15,091,046) (27,792,857)
ProShares Ultra Gold [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 0 0 245
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (159) (17,158) (171,019) (15,362)
ProShares Ultra Silver [Member]        
Investment Income        
Interest 421,514 65,529 561,963 163,658
Expenses        
Management fee 1,082,340 1,615,157 2,299,939 3,246,292
Brokerage commissions 28,732 40,715 59,283 87,297
Futures account fees 6,188 48,893 26,693 211,080
Total expenses 1,117,260 1,704,765 2,385,915 3,544,669
Net investment income (loss) (695,746) (1,639,236) (1,823,952) (3,381,011)
Net realized gain (loss) on        
Net realized gain (loss) (156,195,349) 116,370,479 (39,558,312) 121,281,221
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (50,135,799) (48,394,245) (108,172,044) (186,138,026)
Net realized and unrealized gain (loss) (206,331,148) 67,976,234 (147,730,356) (64,856,805)
Net income (loss) (207,026,894) 66,336,998 (149,554,308) (68,237,816)
ProShares Ultra Silver [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (10,869,422) 10,593,269 (16,614,384) 17,489,539
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (13,510,319) 372,122 (6,824,486) (52,219,911)
ProShares Ultra Silver [Member] | Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (145,324,753) 105,777,210 (22,942,764) 103,791,491
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (36,561,200) (48,708,892) (101,003,629) (133,882,561)
ProShares Ultra Silver [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (1,174) 0 (1,164) 191
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (64,280) (57,475) (343,929) (35,554)
ProShares Ultra VIX Short-Term Futures ETF [Member]        
Investment Income        
Interest 430,670 202,556 525,931 316,525
Expenses        
Management fee 2,293,738 2,293,121 4,254,915 6,676,198
Brokerage commissions 970,211 1,173,276 1,906,969 3,129,904
Futures account fees 444,123 711,443 1,226,811 2,555,256
Total expenses 3,708,072 4,177,840 7,388,695 12,361,358
Net investment income (loss) (3,277,402) (3,975,284) (6,862,764) (12,044,833)
Net realized gain (loss) on        
Net realized gain (loss) 90,701,501 (854,526,924) 371,681,032 (1,559,026,428)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 196,735,349 244,115,248 161,734,465 (40,244,083)
Net realized and unrealized gain (loss) 287,436,850 (610,411,676) 533,415,497 (1,599,270,511)
Net income (loss) 284,159,448 (614,386,960) 526,552,733 (1,611,315,344)
ProShares Ultra VIX Short-Term Futures ETF [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 91,039,435 (811,706,279) 349,477,533 (1,464,769,961)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 196,657,178 244,143,655 161,801,275 (40,259,928)
ProShares Ultra VIX Short-Term Futures ETF [Member] | Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 (42,822,782) 22,556,586 (94,277,124)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 0 0 477,437 24,807
ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (337,934) 2,137 (353,087) 20,657
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 78,171 (28,407) (544,247) (8,962)
ProShares Ultra Yen [Member]        
Investment Income        
Interest 3,064 307 3,937 663
Expenses        
Management fee 8,036 6,262 13,465 12,911
Total expenses 8,036 6,262 13,465 12,911
Net investment income (loss) (4,972) (5,955) (9,528) (12,248)
Net realized gain (loss) on        
Net realized gain (loss) (761,478) (140,007) (878,701) (279,474)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 152,185 118,616 10,820 (137,429)
Net realized and unrealized gain (loss) (609,293) (21,391) (867,881) (416,903)
Net income (loss) (614,265) (27,346) (877,409) (429,151)
ProShares Ultra Yen [Member] | Foreign Currency Forward Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (761,478) (140,007) (880,249) (279,474)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 154,501 118,748 15,962 (137,341)
ProShares Ultra Yen [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 0 1,548 0
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (2,316) (132) (5,142) (88)
ProShares UltraShort Bloomberg Crude Oil [Member]        
Investment Income        
Interest 289,299 18,343 343,206 29,178
Expenses        
Management fee 946,110 181,035 1,438,757 402,298
Brokerage commissions 107,079 28,581 184,135 71,625
Futures account fees 85,802 17,468 155,979 65,180
Total expenses 1,138,991 227,084 1,778,871 539,103
Net investment income (loss) (849,692) (208,741) (1,435,665) (509,925)
Net realized gain (loss) on        
Net realized gain (loss) (102,594,000) (26,010,421) (209,076,101) (75,188,186)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 34,757,114 (9,947,432) 36,686,156 (4,308,588)
Net realized and unrealized gain (loss) (67,836,886) (35,957,853) (172,389,945) (79,496,774)
Net income (loss) (68,686,578) (36,166,594) (173,825,610) (80,006,699)
ProShares UltraShort Bloomberg Crude Oil [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (102,594,000) (26,010,421) (209,076,101) (75,188,186)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 34,810,301 (9,944,438) 36,926,293 (4,307,804)
ProShares UltraShort Bloomberg Crude Oil [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (53,187) (2,994) (240,137) (784)
ProShares UltraShort Bloomberg Natural Gas [Member]        
Investment Income        
Interest 122,188 7,750 178,013 15,633
Expenses        
Management fee 510,704 191,311 1,053,068 350,648
Brokerage commissions 144,907 96,343 365,858 182,023
Futures account fees 76,956 33,853 206,885 57,126
Total expenses 732,567 321,507 1,625,811 589,797
Net investment income (loss) (610,379) (313,757) (1,447,798) (574,164)
Net realized gain (loss) on        
Net realized gain (loss) (282,646,884) (10,305,304) (397,371,192) (16,664,698)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 228,079,127 (33,693,761) 140,292,056 (17,798,697)
Net realized and unrealized gain (loss) (54,567,757) (43,999,065) (257,079,136) (34,463,395)
Net income (loss) (55,178,136) (44,312,822) (258,526,934) (35,037,559)
ProShares UltraShort Bloomberg Natural Gas [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (282,646,685) (10,305,304) (397,312,383) (16,664,698)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 228,166,248 (33,691,003) 140,634,090 (17,797,456)
ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (199) 0 (58,809) 0
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (87,121) (2,758) (342,034) (1,241)
ProShares UltraShort Euro [Member]        
Investment Income        
Interest 39,011 5,640 54,416 12,806
Expenses        
Management fee 146,934 114,680 264,390 238,718
Total expenses 146,934 114,680 264,390 238,718
Net investment income (loss) (107,923) (109,040) (209,974) (225,912)
Net realized gain (loss) on        
Net realized gain (loss) 3,065,129 (795,757) 5,818,237 (725,230)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 3,039,738 (511,170) 3,308,479 3,881,067
Net realized and unrealized gain (loss) 6,104,867 (1,306,927) 9,126,716 3,155,837
Net income (loss) 5,996,944 (1,415,967) 8,916,742 2,929,925
ProShares UltraShort Euro [Member] | Foreign Currency Forward Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 3,065,129 (795,757) 5,607,263 (725,230)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 3,061,048 (509,443) 3,403,124 3,881,954
ProShares UltraShort Euro [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 0 210,974 0
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (21,310) (1,727) (94,645) (887)
ProShares UltraShort Gold [Member]        
Investment Income        
Interest 19,975 3,176 29,660 6,138
Expenses        
Management fee 75,676 69,968 141,814 133,695
Brokerage commissions 2,985 2,283 5,796 5,873
Futures account fees 580 1,802 2,446 6,488
Total expenses 79,241 74,053 150,056 146,056
Net investment income (loss) (59,266) (70,877) (120,396) (139,918)
Net realized gain (loss) on        
Net realized gain (loss) 4,557,870 (6,984,547) (1,750,799) (2,981,188)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 289,951 3,806,053 2,318,730 3,626,200
Net realized and unrealized gain (loss) 4,847,821 (3,178,494) 567,931 645,012
Net income (loss) 4,788,555 (3,249,371) 447,535 505,094
ProShares UltraShort Gold [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 1,310,720 (2,050,237) (680,529) (715,255)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 485,575 546,794 653,483 782,869
ProShares UltraShort Gold [Member] | Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 3,247,150 (4,934,310) (1,070,274) (2,266,102)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (187,339) 3,260,286 1,714,101 2,843,547
ProShares UltraShort Gold [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 0 4 169
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (8,285) (1,027) (48,854) (216)
ProShares UltraShort Silver [Member]        
Investment Income        
Interest 18,743 2,678 27,663 5,795
Expenses        
Management fee 62,381 72,831 123,334 157,576
Brokerage commissions 6,677 3,824 11,978 11,268
Futures account fees 1,169 4,207 4,443 14,198
Total expenses 70,227 80,862 139,755 183,042
Net investment income (loss) (51,484) (78,184) (112,092) (177,247)
Net realized gain (loss) on        
Net realized gain (loss) 9,411,232 (5,876,456) 2,037,296 (8,808,722)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 3,853,312 (925,320) 5,642,964 6,541,191
Net realized and unrealized gain (loss) 13,264,544 (6,801,776) 7,680,260 (2,267,531)
Net income (loss) 13,213,060 (6,879,960) 7,568,168 (2,444,778)
ProShares UltraShort Silver [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 5,944,050 (216,957) 4,650,280 (1,453,150)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 2,249,743 (3,005,003) 1,864,397 491,967
ProShares UltraShort Silver [Member] | Swap Agreements [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 3,467,182 (5,659,499) (2,612,794) (7,355,657)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 1,599,944 2,081,517 3,794,452 6,050,311
ProShares UltraShort Silver [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 0 (190) 85
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 3,625 (1,834) (15,885) (1,087)
ProShares UltraShort Yen [Member]        
Investment Income        
Interest 26,913 3,570 36,312 7,166
Expenses        
Management fee 93,181 72,446 153,001 138,999
Total expenses 93,181 72,446 153,001 138,999
Net investment income (loss) (66,268) (68,876) (116,689) (131,833)
Net realized gain (loss) on        
Net realized gain (loss) 7,917,170 1,598,086 9,100,314 2,857,659
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (1,367,929) (1,645,477) 70,535 1,256,265
Net realized and unrealized gain (loss) 6,549,241 (47,391) 9,170,849 4,113,924
Net income (loss) 6,482,973 (116,267) 9,054,160 3,982,091
ProShares UltraShort Yen [Member] | Foreign Currency Forward Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 7,917,170 1,598,086 8,997,343 2,857,659
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (1,364,477) (1,644,087) 101,925 1,256,801
ProShares UltraShort Yen [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 0 102,971 0
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (3,452) (1,390) (31,390) (536)
ProShares VIX Mid-Term Futures ETF [Member]        
Investment Income        
Interest 52,826 8,349 76,749 18,573
Expenses        
Management fee 210,584 187,266 426,247 365,346
Brokerage commissions 15,500 16,096 40,369 27,408
Futures account fees 10,906 32,131 46,394 57,763
Total expenses 236,990 235,493 513,010 450,517
Net investment income (loss) (184,164) (227,144) (436,261) (431,944)
Net realized gain (loss) on        
Net realized gain (loss) 7,862,052 (14,405,542) 12,653,549 (10,866,226)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 3,992,670 3,572,030 3,518,835 (4,703,492)
Net realized and unrealized gain (loss) 11,854,722 (10,833,512) 16,172,384 (15,569,718)
Net income (loss) 11,670,558 (11,060,656) 15,736,123 (16,001,662)
ProShares VIX Mid-Term Futures ETF [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 7,862,052 (14,405,542) 12,653,885 (10,866,226)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 4,040,230 3,575,301 3,705,055 (4,701,371)
ProShares VIX Mid-Term Futures ETF [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 0 0 (336) 0
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) (47,560) (3,271) (186,220) (2,121)
ProShares VIX Short-Term Futures ETF [Member]        
Investment Income        
Interest 207,903 40,988 278,612 79,448
Expenses        
Management fee 773,717 669,363 1,479,408 1,494,823
Brokerage commissions 171,182 94,839 287,656 267,497
Futures account fees 115,783 174,368 316,440 439,514
Total expenses 1,060,682 938,570 2,083,504 2,201,834
Net investment income (loss) (852,779) (897,582) (1,804,892) (2,122,386)
Net realized gain (loss) on        
Net realized gain (loss) 23,658,785 (175,846,641) 77,393,009 (252,481,234)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 46,600,777 38,992,347 33,152,396 (14,438,507)
Net realized and unrealized gain (loss) 70,259,562 (136,854,294) 110,545,405 (266,919,741)
Net income (loss) 69,406,783 (137,751,876) 108,740,513 (269,042,127)
ProShares VIX Short-Term Futures ETF [Member] | Futures Contracts [Member]        
Net realized gain (loss) on        
Net realized gain (loss) 23,659,182 (175,846,641) 77,393,309 (252,481,234)
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) 46,680,364 39,005,837 33,506,046 (14,433,077)
ProShares VIX Short-Term Futures ETF [Member] | U.S. Government Agencies Short-term Debt Securities [Member]        
Net realized gain (loss) on        
Net realized gain (loss) (397) 0 (300) 0
Change in net unrealized appreciation (depreciation) on        
Change in net unrealized appreciation (depreciation) $ (79,587) $ (13,490) $ (353,650) $ (5,430)
[1] The operations include the activity of ProShares Short Euro ETF and ProShares UltraShort Australian Dollar ETF through May 12, 2022, the date of liquidation.