v2.4.0.6
STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY (USD $)
ProShares UltraShort DJ-UBS Commodity [Member]
ProShares UltraShort DJ-UBS Crude Oil [Member]
ProShares UltraShort DJ-UBS Natural Gas [Member]
ProShares UltraShort Gold [Member]
ProShares UltraShort Silver [Member]
ProShares Short Euro [Member]
ProShares UltraShort Australian Dollar [Member]
ProShares UltraShort Euro [Member]
ProShares UltraShort Yen [Member]
ProShares Ultra DJ-UBS Commodity [Member]
ProShares Ultra DJ-UBS Crude Oil [Member]
ProShares Ultra DJ-UBS Natural Gas [Member]
ProShares Ultra Gold [Member]
ProShares Ultra Silver [Member]
ProShares Ultra Australian Dollar [Member]
ProShares Ultra Euro [Member]
ProShares Ultra Yen [Member]
ProShares VIX Short-Term Futures ETF [Member]
ProShares VIX Mid-Term Futures ETF [Member]
ProShares Ultra VIX Short-Term Futures ETF [Member]
ProShares Short VIX Short-Term Futures ETF [Member]
ProShares Trust II [Member]
Beginning balance at Dec. 31, 2012 $ 3,245,965 $ 89,481,266 $ 12,768,340 $ 92,416,742 $ 100,656,703 $ 3,763,040 $ 3,780,999 $ 526,778,026 $ 408,563,630 $ 6,097,211 $ 483,508,964 $ 73,019,370 $ 335,054,752 $ 747,725,400 $ 4,150,068 $ 4,870,316 $ 4,227,995 $ 137,657,464 $ 37,302,992 $ 84,716,132 $ 82,663,633 $ 3,242,449,608
Addition of shares   87,772,570 19,490,998 16,775,145 27,224,574     40,321,956 65,406,144   24,265,179 35,932,249 7,641,793 85,740,606     1,323,474 194,612,182 51,106,840 626,143,856 116,697,172 1,400,454,738
Redemption of shares   (28,133,016) (1,383,116) (9,881,815) (31,911,371)     (73,520,826) (62,493,620) (1,275,613) (218,628,671) (81,111,888)   (7,301,114)     (1,180,652) (50,019,401) (9,572,962) (221,613,980) (158,975,995) (957,004,640)
Net addition (redemption) of shares   59,639,554 18,107,882 6,893,330 (4,686,797)     (33,198,870) 2,912,524   (194,363,492) (45,179,639)   78,439,492     142,822 144,592,781 41,533,878 404,529,876 (42,278,823) 443,450,098
Net investment income (loss) (6,860) (321,310) (43,566) (210,717) (228,180) (8,405) [1] (8,669) [2] (1,093,113) (935,606) (11,629) (792,030) (197,871) (703,550) (1,624,407) (9,492) [2] (10,724) (10,060) (327,343) (97,496) (1,072,705) (213,419) (7,927,152)
Net realized gain (loss) 308,500 (6,125,829) (1,773,525) 12,883,068 29,205,653 (7,858) [1] 112,165 [2] (2,950,073) 96,885,635 (508,881) 66,563,292 5,749,387 (50,412,546) (215,674,335) (149,370) [2] (65,348) (1,217,929) (55,410,711) (10,259,685) (122,685,938) 25,204,187 (230,330,141)
Change in net unrealized appreciation/depreciation (241,608) (1,501,047) (3,906,112) (6,991,988) (19,068,251) 116,609 [1] (195,319) [2] 26,812,281 (35,385,357) 421,243 (28,749,402) 17,862,843 24,882,532 137,618,617 223,800 [2] (221,177) 423,575 (8,124,712) (407,239) (21,090,969) 3,774,229 86,252,548
Net income (loss) 60,032 (7,948,186) (5,723,203) 5,680,363 9,909,222 100,346 [1],[3] (91,823) [2],[4] 22,769,095 60,564,672 (99,267) 37,021,860 23,414,359 (26,233,564) (79,680,125) 64,938 [2],[4] (297,249) (804,414) (63,862,766) (10,764,420) (144,849,612) 28,764,997 (152,004,745)
Redemptions related to de-registration                                           600
Ending balance at Mar. 31, 2013 $ 3,305,997 $ 141,172,634 $ 25,153,019 $ 104,990,435 $ 105,879,128 $ 3,863,386 $ 3,689,176 $ 516,348,251 $ 472,040,826 $ 4,722,331 $ 326,167,332 $ 51,254,090 $ 316,462,981 $ 746,484,767 $ 4,215,006 $ 4,573,067 $ 3,566,403 $ 218,387,479 $ 68,072,450 $ 344,396,396 $ 69,149,807 $ 3,533,894,961
[1] Since the Fund commenced investment operations on June 26, 2012, the Statement of Operations for the three months ended March 31, 2012 has not been provided.
[2] Since the Fund commenced investment operations on July 17, 2012, the Statement of Operations for the three months ended March 31, 2012 has not been provided.
[3] Since the Fund commenced investment operations on June 26, 2012, the Statement of Cash Flows for the three months ended March 31, 2012 has not been provided.
[4] Since the Fund commenced investment operations on July 17, 2012, the Statement of Cash Flows for the three months ended March 31, 2012 has not been provided.