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Statements of Cash Flows - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Cash flow from operating activities |  |  |
Net income (loss) | $ 1,711,915,524 | $ (39,371,749) | $ (2,481,411,020)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | (13,747,244,846) | (6,811,024,357) | (29,326,977,643)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 12,029,688,924 | 7,096,745,754 | 30,165,855,686
Net amortization and accretion on short-term U.S. government and agency obligations | (67,319,416) | (68,992,300) | (62,959,990)
Net realized (gain) loss on investments | (4,917) | (73,121) | 159,628
Change in unrealized (appreciation) depreciation on investments | (338,770,097) | 30,409,365 | 97,746,933
Decrease (Increase) in receivable on open futures contracts | (26,594,620) | (6,024,206) | 45,696,024
Decrease (Increase) in interest receivable | 21,597 | 859,269 | (1,565,988)
Increase (Decrease) in payable to Sponsor | 1,701,036 | (128,233) | (555,887)
Increase (Decrease) in brokerage commissions and futures account fees payable | 28,563 | (72,217) | (33,668)
Increase (Decrease) in payable on open futures contracts | 190,278,701 | 6,471,060 | 24,279,697
Net cash provided by (used in) operating activities | (246,299,551) | 208,799,265 | (1,539,766,228)
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 13,918,586,107 | 8,554,408,656 | 11,046,019,082
Payment on shares redeemed | (12,998,981,621) | (8,783,469,990) | (9,184,699,519)
Net cash provided by (used in) financing activities | 919,604,486 | (229,061,334) | 1,861,319,563
Net increase (decrease) in cash | 673,304,935 | (20,262,069) | 321,553,335
Cash, beginning of period | 2,577,444,038 | 2,597,706,107 | 2,276,152,772
Cash, end of period | 3,250,748,973 | 2,577,444,038 | 2,597,706,107
ProShares Short VIX Short-Term Futures ETF [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | 62,277,962 | 37,993,782 | 169,244,562
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | (686,322,457) | (713,284,705) | (756,847,632)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 654,645,038 | 805,017,669 | 796,473,442
Net amortization and accretion on short-term U.S. government and agency obligations | (3,288,979) | (7,254,681) | (4,755,757)
Net realized (gain) loss on investments | (605) | (17,669) | 21,847
Change in unrealized (appreciation) depreciation on investments | (2,920) | 11,853 | 5,434
Decrease (Increase) in receivable on open futures contracts | (1,102,738) | 10,407,604 | 28,912,469
Decrease (Increase) in interest receivable | 98,211 | 18,478 | 19,000
Increase (Decrease) in payable to Sponsor | (43,605) | (20,904) | (93,604)
Increase (Decrease) in brokerage commissions and futures account fees payable | (502) | (2,669) | (12,005)
Increase (Decrease) in payable on open futures contracts | (160,781) | 564,219 | 447,611
Net cash provided by (used in) operating activities | 26,098,624 | 133,432,977 | 233,415,367
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 731,347,948 | 961,069,086 | 282,356,336
Payment on shares redeemed | (817,365,106) | (1,015,679,310) | (514,347,675)
Net cash provided by (used in) financing activities | (86,017,158) | (54,610,224) | (231,991,339)
Net increase (decrease) in cash | (59,918,534) | 78,822,753 | 1,424,028
Cash, beginning of period | 241,154,040 | 162,331,287 | 160,907,259
Cash, end of period | 181,235,506 | 241,154,040 | 162,331,287
ProShares Ultra Bloomberg Crude Oil [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | (84,149,627) | 100,472,850 | 30,248,224
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | (1,347,340,760) | (1,578,595,349) | (9,464,242,100)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 1,304,557,586 | 1,729,650,742 | 9,559,522,567
Net amortization and accretion on short-term U.S. government and agency obligations | (7,036,843) | (17,331,464) | (15,360,627)
Net realized (gain) loss on investments | (509) | (13,170) | 58,817
Change in unrealized (appreciation) depreciation on investments | 49,363,268 | (20,245,993) | 56,214,051
Decrease (Increase) in receivable on open futures contracts | 1,554,937 | (2,157,183) | 8,466,027
Decrease (Increase) in interest receivable | 324,161 | (124,209) | 50,532
Increase (Decrease) in payable to Sponsor | (118,718) | (101,782) | (128,301)
Increase (Decrease) in brokerage commissions and futures account fees payable | 0 | (5,682) | (1,472)
Increase (Decrease) in payable on open futures contracts | 1,356,251 | (2,029,522) | 2,099,944
Net cash provided by (used in) operating activities | (81,490,254) | 209,519,238 | 176,927,662
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 694,761,805 | 893,699,410 | 1,168,977,332
Payment on shares redeemed | (750,847,443) | (1,115,542,140) | (1,424,326,429)
Net cash provided by (used in) financing activities | (56,085,638) | (221,842,730) | (255,349,097)
Net increase (decrease) in cash | (137,575,892) | (12,323,492) | (78,421,435)
Cash, beginning of period | 385,855,334 | 398,178,826 | 476,600,261
Cash, end of period | 248,279,442 | 385,855,334 | 398,178,826
ProShares Ultra Bloomberg Natural Gas [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | (80,312,263) | (327,500,511) | (1,704,893,170)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | (1,301,909,040) | (738,233,545) | (11,178,803,468)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 1,174,473,294 | 709,956,736 | 11,391,373,123
Net amortization and accretion on short-term U.S. government and agency obligations | (7,057,306) | (7,000,295) | (13,804,974)
Net realized (gain) loss on investments | 38 | (1,653) | (892)
Change in unrealized (appreciation) depreciation on investments | (28,520) | (13,626) | 37,252
Decrease (Increase) in interest receivable | 244,011 | 1,100,379 | (1,271,721)
Increase (Decrease) in payable to Sponsor | 16,530 | (224,359) | 175,151
Increase (Decrease) in brokerage commissions and futures account fees payable | 1,191 | (38,680) | 17,107
Increase (Decrease) in payable on open futures contracts | 29,905,166 | 16,214,239 | 18,676,841
Net cash provided by (used in) operating activities | (184,666,899) | (345,741,315) | (1,488,494,751)
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 2,830,604,169 | 2,171,160,083 | 4,891,950,936
Payment on shares redeemed | (2,628,614,445) | (2,203,521,960) | (3,030,058,288)
Net cash provided by (used in) financing activities | 201,989,724 | (32,361,877) | 1,861,892,648
Net increase (decrease) in cash | 17,322,825 | (378,103,192) | 373,397,897
Cash, beginning of period | 323,011,189 | 701,114,381 | 327,716,484
Cash, end of period | 340,334,014 | 323,011,189 | 701,114,381
ProShares Ultra Euro [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | 1,257,417 | (836,850) | 451,600
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Change in unrealized (appreciation) depreciation on investments | (229,818) | 474,077 | 108,707
Decrease (Increase) in interest receivable | 3,928 | 7,746 | 13,202
Increase (Decrease) in payable to Sponsor | 20 | (876) | (5,221)
Net cash provided by (used in) operating activities | 1,031,547 | (355,903) | 568,288
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 2,513,699 | 2,873,054 | 3,458,223
Payment on shares redeemed | (3,596,416) | (3,399,063) | (7,500,470)
Net cash provided by (used in) financing activities | (1,082,717) | (526,009) | (4,042,247)
Net increase (decrease) in cash | (51,170) | (881,912) | (3,473,959)
Cash, beginning of period | 5,903,547 | 6,785,459 | 10,259,418
Cash, end of period | 5,852,377 | 5,903,547 | 6,785,459
ProShares Ultra Gold [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | 506,041,596 | 84,713,356 | 24,348,932
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | (3,067,564,985) | (816,791,412) | (995,083,303)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 2,609,111,536 | 810,003,011 | 1,069,750,481
Net amortization and accretion on short-term U.S. government and agency obligations | (15,354,452) | (8,505,611) | (5,091,392)
Net realized (gain) loss on investments | (452) | (3,011) | 28,324
Change in unrealized (appreciation) depreciation on investments | (31,108,768) | 5,417,717 | 3,429,658
Decrease (Increase) in receivable on open futures contracts | 1,952,335 | (1,952,335) | 8,169
Decrease (Increase) in interest receivable | (290,844) | (94,851) | (150,141)
Increase (Decrease) in payable to Sponsor | 576,467 | 89,620 | 8,485
Increase (Decrease) in payable on open futures contracts | 14,210,474 | (564,042) | 564,042
Net cash provided by (used in) operating activities | 17,572,907 | 72,312,442 | 97,813,255
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 952,221,420 | 190,246,217 | 60,924,667
Payment on shares redeemed | (727,695,418) | (176,752,264) | (67,295,712)
Net cash provided by (used in) financing activities | 224,526,002 | 13,493,953 | (6,371,045)
Net increase (decrease) in cash | 242,098,909 | 85,806,395 | 91,442,210
Cash, beginning of period | 215,158,372 | 129,351,977 | 37,909,767
Cash, end of period | 457,257,281 | 215,158,372 | 129,351,977
ProShares Ultra Silver [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | 1,708,010,262 | 105,272,112 | (41,791,206)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | (4,301,566,794) | (1,660,687,822) | (2,963,529,540)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 3,479,105,968 | 1,666,998,259 | 3,087,588,221
Net amortization and accretion on short-term U.S. government and agency obligations | (19,994,488) | (16,705,847) | (9,743,268)
Net realized (gain) loss on investments | (355) | (4,772) | 46,857
Change in unrealized (appreciation) depreciation on investments | (366,598,096) | 49,678,519 | 42,070,772
Decrease (Increase) in interest receivable | (692,145) | (252,509) | (297,911)
Increase (Decrease) in payable to Sponsor | 1,029,310 | 187,577 | (24,614)
Increase (Decrease) in payable on open futures contracts | 140,069,333 | (1,245,808) | 1,555,056
Net cash provided by (used in) operating activities | 639,362,995 | 143,239,709 | 115,874,367
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 1,284,043,682 | 565,922,996 | 184,440,594
Payment on shares redeemed | (1,426,004,201) | (496,529,360) | (171,133,103)
Net cash provided by (used in) financing activities | (141,960,519) | 69,393,636 | 13,307,491
Net increase (decrease) in cash | 497,402,476 | 212,633,345 | 129,181,858
Cash, beginning of period | 491,827,274 | 279,193,929 | 150,012,071
Cash, end of period | 989,229,750 | 491,827,274 | 279,193,929
ProShares Ultra VIX Short-Term Futures ETF [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | (430,147,200) | (85,810,505) | (926,248,749)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | (919,669,172) | (358,565,760) | (1,592,777,850)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 848,850,699 | 336,137,249 | 1,630,711,623
Net amortization and accretion on short-term U.S. government and agency obligations | (3,998,874) | (2,488,045) | (3,191,063)
Net realized (gain) loss on investments | (5,183) | (14,511) | (13,721)
Change in unrealized (appreciation) depreciation on investments | (15,161) | (6,808) | 3,383
Decrease (Increase) in receivable on open futures contracts | (8,865,784) | 1,556,948 | 11,099,936
Decrease (Increase) in interest receivable | 169,805 | 120,957 | 322,254
Increase (Decrease) in payable to Sponsor | 75,367 | (28,635) | (266,796)
Increase (Decrease) in brokerage commissions and futures account fees payable | 14,405 | (11,472) | (22,684)
Increase (Decrease) in payable on open futures contracts | 6,176,125 | 613,972 | (904,685)
Net cash provided by (used in) operating activities | (507,414,973) | (108,496,610) | (881,288,352)
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 2,837,270,589 | 1,359,968,222 | 1,481,923,040
Payment on shares redeemed | (2,287,584,826) | (1,338,261,400) | (846,436,910)
Net cash provided by (used in) financing activities | 549,685,763 | 21,706,822 | 635,486,130
Net increase (decrease) in cash | 42,270,790 | (86,789,788) | (245,802,222)
Cash, beginning of period | 250,621,829 | 337,411,617 | 583,213,839
Cash, end of period | 292,892,619 | 250,621,829 | 337,411,617
ProShares Ultra Yen [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | (1,926,188) | (10,847,938) | (1,581,276)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Change in unrealized (appreciation) depreciation on investments | (3,032,649) | 5,734,582 | (534,736)
Decrease (Increase) in interest receivable | 21,545 | (45,451) | (65,337)
Increase (Decrease) in payable to Sponsor | 1,409 | 14,554 | 11,685
Net cash provided by (used in) operating activities | (4,935,883) | (5,144,253) | (2,169,664)
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 31,666,878 | 48,124,281 | 27,033,889
Payment on shares redeemed | (25,580,986) | (24,349,634) | (7,688,472)
Net cash provided by (used in) financing activities | 6,085,892 | 23,774,647 | 19,345,417
Net increase (decrease) in cash | 1,150,009 | 18,630,394 | 17,175,753
Cash, beginning of period | 48,608,105 | 29,977,711 | 12,801,958
Cash, end of period | 49,758,114 | 48,608,105 | 29,977,711
ProShares UltraShort Bloomberg Crude Oil [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | 76,874,919 | (13,805,318) | 31,016,517
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | (407,880,496) | (326,289,323) | (975,397,647)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 364,917,637 | 379,998,987 | 1,019,874,276
Net amortization and accretion on short-term U.S. government and agency obligations | (1,943,697) | (4,028,783) | (4,754,914)
Net realized (gain) loss on investments | 483 | (6,958) | 11,670
Change in unrealized (appreciation) depreciation on investments | (7,526) | 9,962 | 9,665
Decrease (Increase) in receivable on open futures contracts | (1,186,923) | 654,887 | 949,960
Decrease (Increase) in interest receivable | 217,215 | (56,214) | 99,246
Increase (Decrease) in payable to Sponsor | (19,994) | (42,245) | (73,244)
Increase (Decrease) in brokerage commissions and futures account fees payable | 0 | (3,509) | (625)
Increase (Decrease) in payable on open futures contracts | (2,233,815) | 2,372,844 | (7,102,680)
Net cash provided by (used in) operating activities | 28,737,803 | 38,804,330 | 64,632,224
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 480,945,379 | 329,168,403 | 695,942,149
Payment on shares redeemed | (587,946,834) | (388,811,790) | (758,811,716)
Net cash provided by (used in) financing activities | (107,001,455) | (59,643,387) | (62,869,567)
Net increase (decrease) in cash | (78,263,652) | (20,839,057) | 1,762,657
Cash, beginning of period | 120,735,111 | 141,574,168 | 139,811,511
Cash, end of period | 42,471,459 | 120,735,111 | 141,574,168
ProShares UltraShort Bloomberg Natural Gas [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | 128,877,066 | 77,154,043 | 220,732,798
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | (1,163,298,393) | (262,384,408) | (297,847,108)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 1,099,301,945 | 264,472,679 | 360,999,575
Net amortization and accretion on short-term U.S. government and agency obligations | (5,814,107) | (2,092,232) | (1,678,902)
Net realized (gain) loss on investments | 2,688 | 3,961 | (3,839)
Change in unrealized (appreciation) depreciation on investments | (13,226) | 0 | 12,800
Decrease (Increase) in receivable on open futures contracts | 3,266,861 | (14,759,331) | (3,766,954)
Decrease (Increase) in interest receivable | 204,684 | 42,107 | (154,043)
Increase (Decrease) in payable to Sponsor | 34,487 | 7,100 | (23,789)
Increase (Decrease) in brokerage commissions and futures account fees payable | 2,846 | (7,295) | 2,964
Increase (Decrease) in payable on open futures contracts | 1,060,496 | (9,596,045) | 9,313,683
Net cash provided by (used in) operating activities | 63,625,347 | 52,840,579 | 287,587,185
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 2,239,944,880 | 1,366,578,010 | 1,528,803,667
Payment on shares redeemed | (2,488,512,260) | (1,296,699,897) | (1,757,659,467)
Net cash provided by (used in) financing activities | (248,567,380) | 69,878,113 | (228,855,800)
Net increase (decrease) in cash | (184,942,033) | 122,718,692 | 58,731,385
Cash, beginning of period | 258,891,257 | 136,172,565 | 77,441,180
Cash, end of period | 73,949,224 | 258,891,257 | 136,172,565
ProShares UltraShort Euro [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | (7,064,751) | 6,810,883 | (270,608)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | 0 | 0 | (54,925,175)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 119 | 4,641 | 95,000,000
Net amortization and accretion on short-term U.S. government and agency obligations | 0 | 0 | (83,003)
Net realized (gain) loss on investments | (119) | (4,641) | 0
Change in unrealized (appreciation) depreciation on investments | 1,549,424 | (3,005,829) | (607,675)
Decrease (Increase) in interest receivable | 34,194 | 29,388 | (49,529)
Increase (Decrease) in payable to Sponsor | (3,913) | (715) | (30,003)
Net cash provided by (used in) operating activities | (5,485,046) | 3,833,727 | 39,034,007
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 17,664,628 | 8,047,610 | 9,033,520
Payment on shares redeemed | (16,993,946) | (12,333,369) | (44,508,541)
Net cash provided by (used in) financing activities | 670,682 | (4,285,759) | (35,475,021)
Net increase (decrease) in cash | (4,814,364) | (452,032) | 3,558,986
Cash, beginning of period | 40,638,310 | 41,090,342 | 37,531,356
Cash, end of period | 35,823,946 | 40,638,310 | 41,090,342
ProShares UltraShort Gold [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | (26,188,954) | (5,132,113) | (1,396,340)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Change in unrealized (appreciation) depreciation on investments | 2,709,777 | (341,402) | (393,136)
Decrease (Increase) in receivable on open futures contracts | (155,440) | 17,324 | (17,324)
Decrease (Increase) in interest receivable | (126,036) | (20,319) | 634
Increase (Decrease) in payable to Sponsor | 43,487 | 6,286 | (3,146)
Increase (Decrease) in payable on open futures contracts | (45,074) | 82,309 | (700)
Net cash provided by (used in) operating activities | (23,762,240) | (5,387,915) | (1,810,012)
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 525,135,723 | 38,619,814 | 22,162,736
Payment on shares redeemed | (434,095,983) | (28,659,052) | (24,426,654)
Net cash provided by (used in) financing activities | 91,039,740 | 9,960,762 | (2,263,918)
Net increase (decrease) in cash | 67,277,500 | 4,572,847 | (4,073,930)
Cash, beginning of period | 16,519,330 | 11,946,483 | 16,020,413
Cash, end of period | 83,796,830 | 16,519,330 | 11,946,483
ProShares UltraShort Silver [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | (58,999,091) | (4,340,894) | 17,766,537
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | 0 | 0 | (39,876,608)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 0 | 0 | 39,937,156
Net amortization and accretion on short-term U.S. government and agency obligations | 0 | 0 | (61,454)
Net realized (gain) loss on investments | 0 | 0 | 906
Change in unrealized (appreciation) depreciation on investments | 7,274,165 | (3,768,192) | (908,449)
Decrease (Increase) in receivable on open futures contracts | (19,161,759) | 321,129 | (270,054)
Decrease (Increase) in interest receivable | (157,680) | 123,995 | (113,319)
Increase (Decrease) in payable to Sponsor | 55,482 | (24,252) | 22,759
Increase (Decrease) in payable on open futures contracts | (9,092) | 9,092 | 0
Net cash provided by (used in) operating activities | (70,997,975) | (7,679,122) | 16,497,474
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 486,047,484 | 168,519,186 | 210,064,282
Payment on shares redeemed | (206,135,014) | (204,668,334) | (194,548,168)
Net cash provided by (used in) financing activities | 279,912,470 | (36,149,148) | 15,516,114
Net increase (decrease) in cash | 208,914,495 | (43,828,270) | 32,013,588
Cash, beginning of period | 20,768,601 | 64,596,871 | 32,583,283
Cash, end of period | 229,683,096 | 20,768,601 | 64,596,871
ProShares UltraShort Yen [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | 3,107,239 | 9,462,287 | 5,511,590
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 91 | 3,541 | 23,000,000
Net amortization and accretion on short-term U.S. government and agency obligations | 0 | 0 | (4,702)
Net realized (gain) loss on investments | (91) | (3,541) | 0
Change in unrealized (appreciation) depreciation on investments | 1,384,124 | (3,540,284) | (1,712,747)
Decrease (Increase) in interest receivable | (21,149) | 23,487 | (64,213)
Increase (Decrease) in payable to Sponsor | 9,662 | (719) | (8,957)
Net cash provided by (used in) operating activities | 4,479,876 | 5,944,771 | 26,720,971
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 46,962,430 | 37,504,826 | 33,387,001
Payment on shares redeemed | (40,633,548) | (44,896,828) | (38,969,772)
Net cash provided by (used in) financing activities | 6,328,882 | (7,392,002) | (5,582,771)
Net increase (decrease) in cash | 10,808,758 | (1,447,231) | 21,138,200
Cash, beginning of period | 23,795,096 | 25,242,327 | 4,104,127
Cash, end of period | 34,603,854 | 23,795,096 | 25,242,327
ProShares VIX Mid-Term Futures ETF [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | 1,706,196 | (8,129,807) | (35,837,029)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | 0 | (49,330,764) | (294,811,992)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 84 | 49,719,851 | 345,000,000
Net amortization and accretion on short-term U.S. government and agency obligations | 0 | (385,538) | (311,311)
Net realized (gain) loss on investments | (84) | (3,549) | 0
Change in unrealized (appreciation) depreciation on investments | 0 | 0 | 5,651
Decrease (Increase) in receivable on open futures contracts | (169,245) | 137,388 | 4,849
Decrease (Increase) in interest receivable | (17,746) | 42,540 | (53,638)
Increase (Decrease) in payable to Sponsor | 9,546 | (4,507) | (31,731)
Increase (Decrease) in brokerage commissions and futures account fees payable | 500 | (220) | (1,812)
Increase (Decrease) in payable on open futures contracts | (50,382) | 50,382 | 0
Net cash provided by (used in) operating activities | 1,478,869 | (7,904,224) | 13,962,987
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 53,986,599 | 147,773,279 | 43,215,317
Payment on shares redeemed | (39,036,337) | (149,398,405) | (53,527,104)
Net cash provided by (used in) financing activities | 14,950,262 | (1,625,126) | (10,311,787)
Net increase (decrease) in cash | 16,429,131 | (9,529,350) | 3,651,200
Cash, beginning of period | 28,081,839 | 37,611,189 | 33,959,989
Cash, end of period | 44,510,970 | 28,081,839 | 37,611,189
ProShares VIX Short-Term Futures ETF [Member] |  |  |
Cash flow from operating activities |  |  |
Net income (loss) | (87,449,059) | (4,847,126) | (268,713,402)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: |  |  |
Purchases of short-term U.S. government and agency obligations | (551,692,749) | (306,861,269) | (712,835,220)
Proceeds from sales or maturities of short-term U.S. government and agency obligations | 494,724,927 | 344,782,389 | 746,625,222
Net amortization and accretion on short-term U.S. government and agency obligations | (2,830,670) | (3,199,804) | (4,118,623)
Net realized (gain) loss on investments | (728) | (3,607) | 9,659
Change in unrealized (appreciation) depreciation on investments | (14,171) | 4,789 | 6,303
Decrease (Increase) in receivable on open futures contracts | (2,726,864) | (250,637) | 308,946
Decrease (Increase) in interest receivable | 9,443 | (56,255) | 148,996
Increase (Decrease) in payable to Sponsor | 35,499 | 15,624 | (84,561)
Increase (Decrease) in brokerage commissions and futures account fees payable | 10,123 | (2,690) | (15,141)
Increase (Decrease) in payable on open futures contracts | 0 | (580) | (369,415)
Net cash provided by (used in) operating activities | (149,934,249) | 29,580,834 | (239,037,236)
Cash flow from financing activities |  |  |
Proceeds from addition of shares | 703,468,794 | 265,134,179 | 402,345,393
Payment on shares redeemed | (518,338,858) | (283,967,184) | (243,461,038)
Net cash provided by (used in) financing activities | 185,129,936 | (18,833,005) | 158,884,355
Net increase (decrease) in cash | 35,195,687 | 10,747,829 | (80,152,881)
Cash, beginning of period | 105,874,804 | 95,126,975 | 175,279,856
Cash, end of period | $ 141,070,491 | $ 105,874,804 | $ 95,126,975

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