v3.10.0.1

Statements of Changes in Shareholders' Equity - 6 months ended Jun. 30, 2018 - USD ($) | Total | ProShares Short Euro [Member] | ProShares Short VIX Short-Term Futures ETF [Member] | ProShares Ultra Bloomberg Crude Oil [Member] | ProShares Ultra Bloomberg Natural Gas [Member] | ProShares Ultra Euro [Member] | ProShares Ultra Gold [Member] | ProShares Ultra Silver [Member] | ProShares Ultra VIX Short-Term Futures ETF [Member] | ProShares Ultra Yen [Member] | ProShares UltraPro 3x Crude Oil ETF [Member] | ProShares UltraPro 3X Short Crude Oil ETF [Member] | ProShares UltraShort Australian Dollar [Member] | ProShares UltraShort Bloomberg Crude Oil [Member] | ProShares UltraShort Bloomberg Natural Gas [Member] | ProShares UltraShort Euro [Member] | ProShares UltraShort Gold [Member] | ProShares UltraShort Silver [Member] | ProShares UltraShort Yen [Member] | ProShares VIX Mid-Term Futures ETF [Member] | ProShares VIX Short-Term Futures ETF [Member]
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Shareholders' equity, beginning of period at Dec. 31, 2017 | $ 2,947,278,212 | $ 7,991,880 | $ 770,163,871 | $ 524,445,526 | $ 63,268,950 | $ 9,591,516 | $ 93,708,748 | $ 258,244,696 | $ 394,035,141 | $ 2,864,269 | $ 11,335,483 | $ 21,161,176 | $ 13,702,102 | $ 225,843,284 | $ 6,902,743 | $ 202,548,197 | $ 31,497,410 | $ 14,806,259 | $ 131,077,453 | $ 26,347,948 | $ 137,741,560
Addition of shares | 4,171,496,467 |  | 2,359,283,234 | 117,036,583 | 21,556,367 | 2,653,492 | 12,216,052 | 15,385,625 | 1,199,577,093 |  | 29,844,757 | 37,920,908 |  | 166,184,204 | 13,141,010 | 20,753,604 | 16,527,151 | 21,143,589 | 7,078,646 | 14,069,811 | 117,124,341
Redemption of shares | (3,349,493,583) |  | (731,518,137) | (364,518,108) | (56,879,472) | (2,656,085) | (16,210,941) | (37,063,514) | (1,567,476,812) |  | (12,124,325) | (23,302,804) | (6,710,633) | (132,957,261) | (14,375,750) | (59,841,453) | (23,939,400) | (14,721,782) | (50,193,932) | (26,355,658) | (208,647,516)
Net addition (redemption) of shares | 822,002,884 |  | 1,627,765,097 | (247,481,525) | (35,323,105) | (2,593) | (3,994,889) | (21,677,889) | (367,899,719) |  | 17,720,432 | 14,618,104 | (6,710,633) | 33,226,943 | (1,234,740) | (39,087,849) | (7,412,249) | 6,421,807 | (43,115,286) | (12,285,847) | (91,523,175)
Net investment income (loss) | (1,589,675) | 8,842 | (2,395,753) | 985,223 | 29,226 | 4,823 | 261,930 | 600,819 | (2,150,142) | (5,596) | (96,066) | (132,669) | 4,885 | 532,980 | (12,151) | 490,576 | 70,206 | 46,262 | 233,063 | (1,716) | (64,417)
Net realized gain (loss) | (1,429,012,426) | 64,225 | (1,827,776,466) | 151,738,610 | 5,080,743 | (309,512) | 2,948,113 | 7,174,134 | 260,784,945 | 22,846 | 3,361,776 | (11,469,115) | (704,868) | (75,759,313) | (12,513) | 4,011,223 | (1,696,803) | (1,264,388) | (2,918,976) | 3,967,454 | 53,745,459
Change in net unrealized appreciation/depreciation | 40,482,655 | 254,382 | (39,517,982) | 25,587,101 | (7,340,216) | (435,638) | (10,811,316) | (35,858,622) | 74,541,294 | 10,949 | 8,487,486 | (2,454,299) | 1,286,278 | (6,331,310) | 1,103,510 | 9,772,114 | 3,789,437 | 3,182,840 | (818,709) | 1,836,853 | 14,198,503
Net income (loss) | (1,390,119,446) | 327,449 | (1,869,690,201) | 178,310,934 | (2,230,247) | (740,327) | (7,601,273) | (28,083,669) | 333,176,097 | 28,199 | 11,753,196 | (14,056,083) | 586,295 | (81,557,643) | 1,078,846 | 14,273,913 | 2,162,840 | 1,964,714 | (3,504,622) | 5,802,591 | 67,879,545
Shareholders' equity, end of period at Jun. 30, 2018 | $ 2,379,161,650 | $ 8,319,329 | $ 528,238,767 | $ 455,274,935 | $ 25,715,598 | $ 8,848,596 | $ 82,112,586 | $ 208,483,138 | $ 359,311,519 | $ 2,892,468 | $ 40,809,111 | $ 21,723,197 | $ 7,577,764 | $ 177,512,584 | $ 6,746,849 | $ 177,734,261 | $ 26,248,001 | $ 23,192,780 | $ 84,457,545 | $ 19,864,692 | $ 114,097,930

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