v2.4.0.8
Statements of Operations (USD $)
 3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
ProShares UltraShort Bloomberg Commodity [Member]
        
Investment Income        
Interest $ 344 $ 510 $ 652 $ 1,235
Expenses        
Management fee 7,611 8,450 15,910 16,035
Total expenses 7,611 8,450 15,910 16,035
Net investment income (loss) (7,267) (7,940) (15,258) (14,800)
Net realized gain (loss) on        
Swap agreements 130,061 150,169 (505,634) 458,667
Short-term U.S. government and agency obligations 0 0 0 2
Net realized gain (loss) 130,061 150,169 (505,634) 458,669
Change in net unrealized appreciation/depreciation on        
Swap agreements (151,988) 505,167 (22,054) 263,746
Short-term U.S. government and agency obligations (120) (172) (65) (359)
Change in net unrealized appreciation/depreciation (152,108) 504,995 (22,119) 263,387
Net realized and unrealized gain (loss) (22,047) 655,164 (527,753) 722,056
Net income (loss) (29,314) 647,224 (543,011) 707,256
Net income (loss) per weighted-average share $ (0.49) $ 10.79 $ (9.05) $ 11.79
Weighted-average shares outstanding 59,997 59,997 59,997 59,997
ProShares UltraShort Bloomberg Crude Oil [Member]
        
Investment Income        
Interest 39,315 23,201 76,288 48,510
Expenses        
Management fee 841,703 442,975 1,465,256 782,559
Brokerage commissions 26,969 18,494 39,662 25,529
Total expenses 868,672 461,469 1,504,918 808,088
Net investment income (loss) (829,357) (438,268) (1,428,630) (759,578)
Net realized gain (loss) on        
Futures contracts (20,355,928) 5,255,578 (23,267,179) (3,232,391)
Swap agreements (11,211,080) (4,229,924) (20,577,830) (1,867,113)
Short-term U.S. government and agency obligations 5,028 8,970 10,317 8,299
Net realized gain (loss) (31,561,980) 1,034,624 (43,834,692) (5,091,205)
Change in net unrealized appreciation/depreciation on        
Futures contracts 1,095,673 (1,110,021) (3,935,868) 3,151,224
Swap agreements (15,412,221) 10,988,393 (13,772,252) 5,227,039
Short-term U.S. government and agency obligations (6,758) (2,083) (8,636) (3,021)
Change in net unrealized appreciation/depreciation (14,323,306) 9,876,289 (17,716,756) 8,375,242
Net realized and unrealized gain (loss) (45,885,286) 10,910,913 (61,551,448) 3,284,037
Net income (loss) (46,714,643) 10,472,645 (62,980,078) 2,524,459
Net income (loss) per weighted-average share $ (3.51) $ 2.13 $ (5.72) $ 0.58
Weighted-average shares outstanding 13,303,460 4,923,241 11,008,342 4,354,474
ProShares UltraShort Bloomberg Natural Gas [Member]
        
Investment Income        
Interest 6,257 3,549 12,940 5,950
Expenses        
Management fee 147,249 61,051 279,055 97,194
Brokerage commissions 31,290 17,088 61,752 26,912
Total expenses 178,539 78,139 340,807 124,106
Net investment income (loss) (172,282) (74,590) (327,867) (118,156)
Net realized gain (loss) on        
Futures contracts (1,970,509) (834,719) (11,185,543) (2,608,140)
Short-term U.S. government and agency obligations 2,385 1,105 4,437 1,001
Net realized gain (loss) (1,968,124) (833,614) (11,181,106) (2,607,139)
Change in net unrealized appreciation/depreciation on        
Futures contracts (2,011,476) 5,826,227 1,425,544 1,920,339
Short-term U.S. government and agency obligations (2,780) (767) (537) (991)
Change in net unrealized appreciation/depreciation (2,014,256) 5,825,460 1,425,007 1,919,348
Net realized and unrealized gain (loss) (3,982,380) 4,991,846 (9,756,099) (687,791)
Net income (loss) (4,154,662) 4,917,256 (10,083,966) (805,947)
Net income (loss) per weighted-average share $ (2.64) $ 13.27 $ (7.08) $ (2.98)
Weighted-average shares outstanding 1,575,501 370,605 1,423,847 270,791
ProShares UltraShort Gold [Member]
        
Investment Income        
Interest 12,750 19,551 27,945 35,308
Expenses        
Management fee 231,431 368,796 496,983 595,254
Brokerage commissions 8 8 24 24
Total expenses 231,439 368,804 497,007 595,278
Net investment income (loss) (218,689) (349,253) (469,062) (559,970)
Net realized gain (loss) on        
Futures contracts 14,130 32,000 (4,430) 65,420
Forward agreements 13,861,265 20,826,050 (8,269,862) 33,676,097
Short-term U.S. government and agency obligations 716 1,604 2,211 1,205
Net realized gain (loss) 13,876,111 20,859,654 (8,272,081) 33,742,722
Change in net unrealized appreciation/depreciation on        
Futures contracts (21,700) 42,650 (19,360) 26,000
Forward agreements (19,115,270) 55,031,972 (16,216,561) 48,055,834
Short-term U.S. government and agency obligations (1,186) (2,827) 2,343 (2,027)
Change in net unrealized appreciation/depreciation (19,138,156) 55,071,795 (16,233,578) 48,079,807
Net realized and unrealized gain (loss) (5,262,045) 75,931,449 (24,505,659) 81,822,529
Net income (loss) (5,480,734) 75,582,196 (24,974,721) 81,262,559
Net income (loss) per weighted-average share $ (4.94) $ 40.80 $ (21.04) $ 48.81
Weighted-average shares outstanding 1,109,065 1,852,472 1,186,757 1,664,933
ProShares UltraShort Silver [Member]
        
Investment Income        
Interest 7,838 16,691 20,795 39,046
Expenses        
Management fee 140,948 290,088 345,108 540,615
Brokerage commissions 16 16 24 24
Total expenses 140,964 290,104 345,132 540,639
Net investment income (loss) (133,126) (273,413) (324,337) (501,593)
Net realized gain (loss) on        
Futures contracts 9,900 93,800 15,250 125,740
Forward agreements 12,445,216 51,521,527 (174,539) 80,694,099
Short-term U.S. government and agency obligations 469 1,956 2,010 3,097
Net realized gain (loss) 12,455,585 51,617,283 (157,279) 80,822,936
Change in net unrealized appreciation/depreciation on        
Futures contracts (22,240) (4,120) (31,110) (16,620)
Forward agreements (18,305,793) 40,890,897 (8,335,356) 21,838,500
Short-term U.S. government and agency obligations (1,386) (4,874) (1,904) (8,228)
Change in net unrealized appreciation/depreciation (18,329,419) 40,881,903 (8,368,370) 21,813,652
Net realized and unrealized gain (loss) (5,873,834) 92,499,186 (8,525,649) 102,636,588
Net income (loss) (6,006,960) 92,225,773 (8,849,986) 102,134,995
Net income (loss) per weighted-average share $ (8.54) $ 57.16 $ (9.94) $ 54.51
Weighted-average shares outstanding 703,544 1,613,434 889,981 1,873,682
ProShares Short Euro [Member]
        
Investment Income        
Interest 1,359 511 2,405 1,025
Expenses        
Management fee 28,155 493 45,561 493
Brokerage commissions 459 114 698 230
Offering costs 0 35,401 0 45,511
Limitation by Sponsor 0 (26,925) 0 (28,232)
Total expenses 28,614 9,083 46,259 18,002
Net investment income (loss) (27,255) (8,572) (43,854) (16,977)
Net realized gain (loss) on        
Futures contracts 225,122 (67,938) 158,534 (75,938)
Short-term U.S. government and agency obligations 0 5 258 147
Net realized gain (loss) 225,122 (67,933) 158,792 (75,791)
Change in net unrealized appreciation/depreciation on        
Futures contracts (159,059) 5,900 (77,928) 122,669
Short-term U.S. government and agency obligations (134) 53 (324) (107)
Change in net unrealized appreciation/depreciation (159,193) 5,953 (78,252) 122,562
Net realized and unrealized gain (loss) 65,929 (61,980) 80,540 46,771
Net income (loss) 38,674 (70,552) 36,686 29,794
Net income (loss) per weighted-average share $ 0.12 $ (0.71) $ 0.14 $ 0.30
Weighted-average shares outstanding 333,521 100,005 270,999 100,005
ProShares UltraShort Australian Dollar [Member]
        
Investment Income        
Interest 2,127 1,111 5,991 1,609
Expenses        
Management fee 49,105 0 108,365 0
Brokerage commissions 2,584 3,381 6,366 3,779
Offering costs 0 34,834 0 44,944
Limitation by Sponsor 0 (6,735) 0 (8,076)
Total expenses 51,689 31,480 114,731 40,647
Net investment income (loss) (49,562) (30,369) (108,740) (39,038)
Net realized gain (loss) on        
Futures contracts (1,846,929) 1,793,067 (1,925,538) 1,905,097
Short-term U.S. government and agency obligations 83 26 487 161
Net realized gain (loss) (1,846,846) 1,793,093 (1,925,051) 1,905,258
Change in net unrealized appreciation/depreciation on        
Futures contracts 859,039 1,508,211 (1,280,445) 1,313,051
Short-term U.S. government and agency obligations (1,064) (67) (1,479) (226)
Change in net unrealized appreciation/depreciation 857,975 1,508,144 (1,281,924) 1,312,825
Net realized and unrealized gain (loss) (988,871) 3,301,237 (3,206,975) 3,218,083
Net income (loss) (1,038,433) 3,270,868 (3,315,715) 3,179,045
Net income (loss) per weighted-average share $ (2.08) $ 11.63 $ (6.31) $ 16.63
Weighted-average shares outstanding 500,005 281,324 525,696 191,165
ProShares UltraShort Euro [Member]
        
Investment Income        
Interest 59,294 52,873 128,651 140,103
Expenses        
Management fee 1,007,662 1,203,991 1,978,418 2,384,334
Total expenses 1,007,662 1,203,991 1,978,418 2,384,334
Net investment income (loss) (948,368) (1,151,118) (1,849,767) (2,244,231)
Net realized gain (loss) on        
Foreign currency forward contracts 5,886,956 (8,147,050) (6,295,085) (11,096,730)
Short-term U.S. government and agency obligations 547 4,812 2,485 4,419
Net realized gain (loss) 5,887,503 (8,142,238) (6,292,600) (11,092,311)
Change in net unrealized appreciation/depreciation on        
Foreign currency forward contracts (1,863,031) (8,918,725) 8,161,166 17,894,296
Short-term U.S. government and agency obligations (4,307) (22,855) (14,794) (23,595)
Change in net unrealized appreciation/depreciation (1,867,338) (8,941,580) 8,146,372 17,870,701
Net realized and unrealized gain (loss) 4,020,165 (17,083,818) 1,853,772 6,778,390
Net income (loss) 3,071,797 (18,234,936) 4,005 4,534,159
Net income (loss) per weighted-average share $ 0.12 $ (0.69) $ 0.00 [1] $ 0.17
Weighted-average shares outstanding 24,952,761 26,443,421 24,556,920 26,524,876
ProShares UltraShort Yen [Member]
        
Investment Income        
Interest 56,785 61,098 135,009 130,590
Expenses        
Management fee 877,179 1,239,463 1,905,712 2,244,561
Total expenses 877,179 1,239,463 1,905,712 2,244,561
Net investment income (loss) (820,394) (1,178,365) (1,770,703) (2,113,971)
Net realized gain (loss) on        
Foreign currency forward contracts 268,536 48,138,405 165,806 145,024,702
Short-term U.S. government and agency obligations 3,271 5,480 11,617 4,818
Net realized gain (loss) 271,807 48,143,885 177,423 145,029,520
Change in net unrealized appreciation/depreciation on        
Foreign currency forward contracts (14,493,994) (6,860,712) (39,034,294) (42,242,261)
Short-term U.S. government and agency obligations (37,904) (6,064) (40,017) (9,872)
Change in net unrealized appreciation/depreciation (14,531,898) (6,866,776) (39,074,311) (42,252,133)
Net realized and unrealized gain (loss) (14,260,091) 41,277,109 (38,896,888) 102,777,387
Net income (loss) (15,080,485) 40,098,744 (40,667,591) 100,663,416
Net income (loss) per weighted-average share $ (2.69) $ 4.93 $ (6.71) $ 12.85
Weighted-average shares outstanding 5,606,437 8,141,052 6,057,581 7,833,548
ProShares Ultra Bloomberg Commodity [Member]
        
Investment Income        
Interest 387 664 719 1,414
Expenses        
Management fee 8,125 10,237 15,414 22,616
Total expenses 8,125 10,237 15,414 22,616
Net investment income (loss) (7,738) (9,573) (14,695) (21,202)
Net realized gain (loss) on        
Swap agreements (160,396) (274,078) 376,946 (782,975)
Short-term U.S. government and agency obligations 0 14 0 30
Net realized gain (loss) (160,396) (274,064) 376,946 (782,945)
Change in net unrealized appreciation/depreciation on        
Swap agreements 123,172 (586,322) (6,034) (165,007)
Short-term U.S. government and agency obligations (140) (45) (49) (117)
Change in net unrealized appreciation/depreciation 123,032 (586,367) (6,083) (165,124)
Net realized and unrealized gain (loss) (37,364) (860,431) 370,863 (948,069)
Net income (loss) (45,102) (870,004) 356,168 (969,271)
Net income (loss) per weighted-average share $ (0.30) $ (4.35) $ 2.35 $ (4.65)
Weighted-average shares outstanding 152,761 200,014 151,395 208,578
ProShares Ultra Bloomberg Crude Oil [Member]
        
Investment Income        
Interest 11,287 38,629 32,988 101,903
Expenses        
Management fee 228,560 670,575 574,502 1,510,962
Brokerage commissions 7,348 23,394 16,499 38,311
Total expenses 235,908 693,969 591,001 1,549,273
Net investment income (loss) (224,621) (655,340) (558,013) (1,447,370)
Net realized gain (loss) on        
Futures contracts 5,780,822 3,790,456 13,372,250 43,537,640
Swap agreements 4,033,279 16,943,213 17,635,519 43,760,354
Short-term U.S. government and agency obligations 1,571 9,883 7,958 8,850
Net realized gain (loss) 9,815,672 20,743,552 31,015,727 87,306,844
Change in net unrealized appreciation/depreciation on        
Futures contracts (986,210) (1,050,168) 496,443 (21,648,062)
Swap agreements 3,151,079 (21,007,097) 2,153,137 (29,147,146)
Short-term U.S. government and agency obligations (2,098) (4,574) (10,662) (16,033)
Change in net unrealized appreciation/depreciation 2,162,771 (22,061,839) 2,638,918 (50,811,241)
Net realized and unrealized gain (loss) 11,978,443 (1,318,287) 33,654,645 36,495,603
Net income (loss) 11,753,822 (1,973,627) 33,096,632 35,048,233
Net income (loss) per weighted-average share $ 4.43 $ (0.20) $ 9.04 $ 3.26
Weighted-average shares outstanding 2,655,763 9,729,390 3,662,430 10,736,739
ProShares Ultra Bloomberg Natural Gas [Member]
        
Investment Income        
Interest 1,811 4,949 8,084 16,626
Expenses        
Management fee 44,242 93,177 150,086 269,790
Brokerage commissions 9,286 23,462 27,277 56,397
Total expenses 53,528 116,639 177,363 326,187
Net investment income (loss) (51,717) (111,690) (169,279) (309,561)
Net realized gain (loss) on        
Futures contracts 162,451 9,153,747 16,965,826 14,901,941
Short-term U.S. government and agency obligations 506 2,584 3,213 3,777
Net realized gain (loss) 162,957 9,156,331 16,969,039 14,905,718
Change in net unrealized appreciation/depreciation on        
Futures contracts 440,646 (19,990,856) 2,245,774 (2,129,288)
Short-term U.S. government and agency obligations (459) (2,990) (2,861) (1,715)
Change in net unrealized appreciation/depreciation 440,187 (19,993,846) 2,242,913 (2,131,003)
Net realized and unrealized gain (loss) 603,144 (10,837,515) 19,211,952 12,774,715
Net income (loss) 551,427 (10,949,205) 19,042,673 12,465,154
Net income (loss) per weighted-average share $ 1.42 $ (13.32) $ 27.65 $ 9.17
Weighted-average shares outstanding 386,974 822,139 688,726 1,359,168
ProShares Ultra Gold [Member]
        
Investment Income        
Interest 17,629 41,790 31,457 100,868
Expenses        
Management fee 314,711 519,993 646,062 1,282,605
Brokerage commissions 8 8 24 24
Total expenses 314,719 520,001 646,086 1,282,629
Net investment income (loss) (297,090) (478,211) (614,629) (1,181,761)
Net realized gain (loss) on        
Futures contracts (14,080) (32,040) 4,440 (65,540)
Forward agreements (21,475,056) (67,976,609) 1,940,044 (118,358,314)
Short-term U.S. government and agency obligations 793 5,838 723 8,497
Net realized gain (loss) (21,488,343) (68,002,811) 1,945,207 (118,415,357)
Change in net unrealized appreciation/depreciation on        
Futures contracts 21,680 (42,640) 19,380 (26,020)
Forward agreements 25,237,987 (62,927,844) 20,040,889 (38,053,346)
Short-term U.S. government and agency obligations (3,219) (10,396) 6,146 (18,982)
Change in net unrealized appreciation/depreciation 25,256,448 (62,980,880) 20,066,415 (38,098,348)
Net realized and unrealized gain (loss) 3,768,105 (130,983,691) 22,011,622 (156,513,705)
Net income (loss) 3,471,015 (131,461,902) 21,396,993 (157,695,466)
Net income (loss) per weighted-average share $ 1.22 $ (36.33) $ 7.32 $ (41.23)
Weighted-average shares outstanding 2,847,267 3,618,146 2,921,285 3,825,152
ProShares Ultra Silver [Member]
        
Investment Income        
Interest 51,355 102,633 113,957 261,893
Expenses        
Management fee 1,098,533 1,309,255 2,286,437 3,092,914
Brokerage commissions 22 12 30 20
Total expenses 1,098,555 1,309,267 2,286,467 3,092,934
Net investment income (loss) (1,047,200) (1,206,634) (2,172,510) (2,831,041)
Net realized gain (loss) on        
Futures contracts (7,025) (94,004) (12,375) (126,144)
Forward agreements (106,232,925) (322,516,719) (32,272,003) (538,173,127)
Short-term U.S. government and agency obligations 2,611 8,898 5,680 23,111
Net realized gain (loss) (106,237,339) (322,601,825) (32,278,698) (538,276,160)
Change in net unrealized appreciation/depreciation on        
Futures contracts 13,785 4,270 22,655 16,520
Forward agreements 145,040,572 (168,444,141) 89,395,091 (30,810,153)
Short-term U.S. government and agency obligations (13,905) (26,859) (17,833) (54,480)
Change in net unrealized appreciation/depreciation 145,040,452 (168,466,730) 89,399,913 (30,848,113)
Net realized and unrealized gain (loss) 38,803,113 (491,068,555) 57,121,215 (569,124,273)
Net income (loss) 37,755,913 (492,275,189) 54,948,705 (571,955,314)
Net income (loss) per weighted-average share $ 5.09 $ (87.18) $ 7.45 $ (113.15)
Weighted-average shares outstanding 7,424,555 5,646,848 7,378,696 5,054,772
ProShares Ultra Australian Dollar [Member]
        
Investment Income        
Interest 528 424 1,086 1,070
Expenses        
Management fee 8,295 0 15,803 0
Brokerage commissions 376 415 756 777
Offering costs 0 34,834 0 44,944
Limitation by Sponsor 0 (25,730) 0 (26,064)
Total expenses 8,671 9,519 16,559 19,657
Net investment income (loss) (8,143) (9,095) (15,473) (18,587)
Net realized gain (loss) on        
Futures contracts 285,670 (590,630) 258,243 (739,905)
Short-term U.S. government and agency obligations 0 110 0 15
Net realized gain (loss) 285,670 (590,520) 258,243 (739,890)
Change in net unrealized appreciation/depreciation on        
Futures contracts (129,485) (332,037) 181,720 (108,077)
Short-term U.S. government and agency obligations (389) 42 (466) (118)
Change in net unrealized appreciation/depreciation (129,874) (331,995) 181,254 (108,195)
Net realized and unrealized gain (loss) 155,796 (922,515) 439,497 (848,085)
Net income (loss) 147,653 (931,610) 424,024 (866,672)
Net income (loss) per weighted-average share $ 1.48 $ (9.32) $ 4.24 $ (8.67)
Weighted-average shares outstanding 100,005 100,005 100,005 100,005
ProShares Ultra Euro [Member]
        
Investment Income        
Interest 327 421 705 1,097
Expenses        
Management fee 6,106 8,564 12,148 19,964
Total expenses 6,106 8,564 12,148 19,964
Net investment income (loss) (5,779) (8,143) (11,443) (18,867)
Net realized gain (loss) on        
Foreign currency forward contracts (40,251) 36,991 44,885 (28,371)
Short-term U.S. government and agency obligations 0 (5) 0 9
Net realized gain (loss) (40,251) 36,986 44,885 (28,362)
Change in net unrealized appreciation/depreciation on        
Foreign currency forward contracts 9,743 96,965 (70,235) (124,190)
Short-term U.S. government and agency obligations (94) (74) (133) (96)
Change in net unrealized appreciation/depreciation 9,649 96,891 (70,368) (124,286)
Net realized and unrealized gain (loss) (30,602) 133,877 (25,483) (152,648)
Net income (loss) (36,381) 125,734 (36,926) (171,515)
Net income (loss) per weighted-average share $ (0.36) $ 0.82 $ (0.37) $ (0.97)
Weighted-average shares outstanding 100,014 152,761 100,014 176,257
ProShares Ultra Yen [Member]
        
Investment Income        
Interest 386 417 821 1,243
Expenses        
Management fee 6,454 7,644 13,309 18,530
Total expenses 6,454 7,644 13,309 18,530
Net investment income (loss) (6,068) (7,227) (12,488) (17,287)
Net realized gain (loss) on        
Foreign currency forward contracts (11,079) (456,601) (21,596) (1,674,572)
Short-term U.S. government and agency obligations 2 11 78 53
Net realized gain (loss) (11,077) (456,590) (21,518) (1,674,519)
Change in net unrealized appreciation/depreciation on        
Foreign currency forward contracts 93,948 80,626 212,028 504,360
Short-term U.S. government and agency obligations (245) 67 (347) (92)
Change in net unrealized appreciation/depreciation 93,703 80,693 211,681 504,268
Net realized and unrealized gain (loss) 82,626 (375,897) 190,163 (1,170,251)
Net income (loss) 76,558 (383,124) 177,675 (1,187,538)
Net income (loss) per weighted-average share $ 0.55 $ (2.55) $ 1.23 $ (7.05)
Weighted-average shares outstanding 138,476 150,014 144,213 168,522
ProShares VIX Short-Term Futures ETF [Member]
        
Investment Income        
Interest 10,546 19,211 34,214 43,539
Expenses        
Management fee 236,584 454,439 614,049 806,110
Total expenses 236,584 454,439 614,049 806,110
Net investment income (loss) (226,038) (435,228) (579,835) (762,571)
Net realized gain (loss) on        
Futures contracts (41,227,047) 11,156,344 (25,447,340) (44,252,605)
Short-term U.S. government and agency obligations 4,626 4,792 11,232 3,030
Net realized gain (loss) (41,222,421) 11,161,136 (25,436,108) (44,249,575)
Change in net unrealized appreciation/depreciation on        
Futures contracts (1,586,521) 9,582,597 10,039,200 1,457,956
Short-term U.S. government and agency obligations (2,529) (9,307) (7,113) (9,378)
Change in net unrealized appreciation/depreciation (1,589,050) 9,573,290 10,032,087 1,448,578
Net realized and unrealized gain (loss) (42,811,471) 20,734,426 (15,404,021) (42,800,997)
Net income (loss) (43,037,509) 20,299,198 (15,983,856) (43,563,568)
Net income (loss) per weighted-average share $ (9.29) $ 4.98 $ (2.97) $ (12.80)
Weighted-average shares outstanding 4,630,307 4,072,778 5,378,679 3,402,475
ProShares VIX Mid-Term Futures ETF [Member]
        
Investment Income        
Interest 4,925 6,431 10,253 13,751
Expenses        
Management fee 102,112 133,204 217,448 238,020
Total expenses 102,112 133,204 217,448 238,020
Net investment income (loss) (97,187) (126,773) (207,195) (224,269)
Net realized gain (loss) on        
Futures contracts (6,666,419) (2,486,914) (12,064,321) (12,747,085)
Short-term U.S. government and agency obligations 1,234 824 1,717 1,310
Net realized gain (loss) (6,665,185) (2,486,090) (12,062,604) (12,745,775)
Change in net unrealized appreciation/depreciation on        
Futures contracts (1,487,840) 7,458,863 1,401,639 7,052,844
Short-term U.S. government and agency obligations (1,229) (3,852) (761) (5,072)
Change in net unrealized appreciation/depreciation (1,489,069) 7,455,011 1,400,878 7,047,772
Net realized and unrealized gain (loss) (8,154,254) 4,968,921 (10,661,726) (5,698,003)
Net income (loss) (8,251,441) 4,842,148 (10,868,921) (5,922,272)
Net income (loss) per weighted-average share $ (2.97) $ 2.00 $ (3.85) $ (2.80)
Weighted-average shares outstanding 2,778,027 2,415,115 2,825,005 2,113,541
ProShares Ultra VIX Short-Term Futures ETF [Member]
        
Investment Income        
Interest 20,656 18,527 41,932 36,066
Expenses        
Management fee 789,047 744,547 1,375,179 1,277,454
Brokerage commissions 650,481 664,479 1,169,928 1,221,816
Total expenses 1,439,528 1,409,026 2,545,107 2,499,270
Net investment income (loss) (1,418,872) (1,390,499) (2,503,175) (2,463,204)
Net realized gain (loss) on        
Futures contracts (247,176,983) 17,763,794 (250,723,287) (100,473,172)
Swap agreements 0 0 0 (4,453,107)
Short-term U.S. government and agency obligations 14,978 16,125 14,064 20,260
Net realized gain (loss) (247,162,005) 17,779,919 (250,709,223) (104,906,019)
Change in net unrealized appreciation/depreciation on        
Futures contracts (10,831,519) 21,978,092 (16,523,435) 1,183,909
Swap agreements 0 0 0 (301,351)
Short-term U.S. government and agency obligations (6,498) (4,150) (3,956) 415
Change in net unrealized appreciation/depreciation (10,838,017) 21,973,942 (16,527,391) 882,973
Net realized and unrealized gain (loss) (258,000,022) 39,753,861 (267,236,614) (104,023,046)
Net income (loss) (259,418,894) 38,363,362 (269,739,789) (106,486,250)
Net income (loss) per weighted-average share $ (32.62) $ 32.17 $ (46.15) $ (120.04)
Weighted-average shares outstanding 7,952,517 1,192,482 5,845,266 887,067
ProShares Short VIX Short-Term Futures ETF [Member]
        
Investment Income        
Interest 20,024 7,368 44,229 16,633
Expenses        
Management fee 486,704 185,400 990,622 323,063
Brokerage commissions 273,431 118,168 564,757 203,189
Total expenses 760,135 303,568 1,555,379 526,252
Net investment income (loss) (740,111) (296,200) (1,511,150) (509,619)
Net realized gain (loss) on        
Futures contracts 73,536,615 (4,128,965) 76,268,051 21,075,146
Short-term U.S. government and agency obligations 7,145 1,978 9,959 2,054
Net realized gain (loss) 73,543,760 (4,126,987) 76,278,010 21,077,200
Change in net unrealized appreciation/depreciation on        
Futures contracts 837,428 (3,022,387) 803,672 753,504
Short-term U.S. government and agency obligations (5,530) (2,258) (4,021) (3,920)
Change in net unrealized appreciation/depreciation 831,898 (3,024,645) 799,651 749,584
Net realized and unrealized gain (loss) 74,375,658 (7,151,632) 77,077,661 21,826,784
Net income (loss) 73,635,547 (7,447,832) 75,566,511 21,317,165
Net income (loss) per weighted-average share $ 25.23 $ (4.11) $ 23.59 $ 13.19
Weighted-average shares outstanding 2,918,721 1,814,326 3,203,355 1,616,615
ProShares Trust II [Member]
        
Investment Income        
Interest 325,930 420,559 731,121 999,479
Expenses        
Management fee 6,660,516 7,752,342 13,551,427 15,523,073
Brokerage commissions 1,002,278 869,039 1,887,797 1,577,032
Offering costs 0 105,069 0 135,399
Limitation by Sponsor 0 (59,390) 0 (62,372)
Total expenses 7,662,794 8,667,060 15,439,224 17,173,132
Net investment income (loss) (7,336,864) (8,246,501) (14,708,103) (16,173,653)
Net realized gain (loss) on        
Futures contracts (239,250,210) 40,803,576 (217,587,419) (82,709,936)
Swap agreements (7,208,136) 12,589,380 (3,070,999) 37,115,826
Forward agreements (101,401,500) (318,145,751) (38,776,360) (542,161,245)
Foreign currency forward contracts 6,104,162 39,571,745 (6,105,990) 132,225,029
Short-term U.S. government and agency obligations 45,965 75,010 88,446 94,145
Net realized gain (loss) (341,709,719) (225,106,040) (265,452,322) (455,436,181)
Change in net unrealized appreciation/depreciation on        
Futures contracts (13,967,799) 20,854,581 (5,232,119) (6,930,051)
Swap agreements (12,289,958) (10,099,859) (11,647,203) (24,122,719)
Forward agreements 132,857,496 (135,449,116) 84,884,063 1,030,835
Foreign currency forward contracts (16,253,334) (15,601,846) (30,731,335) (23,967,795)
Short-term U.S. government and agency obligations (91,974) (104,052) (107,469) (158,014)
Change in net unrealized appreciation/depreciation 90,254,431 (140,400,292) 37,165,937 (54,147,744)
Net realized and unrealized gain (loss) (251,455,288) (365,506,332) (228,286,385) (509,583,925)
Net income (loss) $ (258,792,152) $ (373,752,833) $ (242,994,488) $ (525,757,578)
[1] Less than $0.01.