v3.24.0.1

Significant Accounting Policies - Valuation of Investments using Fair Value Hierarchy (Detail) - USD ($) | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | $ 751,395,550 | $ 1,383,546,929
ProShares Short VIX Short-Term Futures ETF [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 122,050,966 | 155,400,057
ProShares Ultra Bloomberg Crude Oil [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 247,916,644 | 413,916,300
ProShares Ultra Bloomberg Natural Gas [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 108,066,187 | (47,353,811)
ProShares Ultra Euro [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 306,949 | 415,656
ProShares Ultra Gold [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 66,682,462 | 138,862,043
ProShares Ultra Silver [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 123,849,552 | 297,308,420
ProShares Ultra VIX Short-Term Futures ETF [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (31,183,911) | (1,823,081)
ProShares Ultra Yen [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 1,519,285 | 984,549
ProShares UltraShort Bloomberg Crude Oil [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 72,120,204 | 99,671,828
ProShares UltraShort Bloomberg Natural Gas [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (3,553,507) | 147,371,924
ProShares UltraShort Euro [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (1,848,779) | 37,535,368
ProShares UltraShort Gold [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (344,052) | (691,843)
ProShares UltraShort Silver [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 874,872 | (2,663,123)
ProShares UltraShort Yen [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (1,311,925) | 19,970,626
ProShares VIX Mid-Term Futures ETF [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (3,745,676) | 45,091,125
ProShares VIX Short-Term Futures ETF [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 49,996,279 | 79,550,891
Level I - Quoted Prices [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 690,474,277 | 1,466,680,542
Level I - Quoted Prices [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | 45,063,431 | (196,609,804)
Level I - Quoted Prices [Member] | ProShares Short VIX Short-Term Futures ETF [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 109,410,342 | 144,307,676
Level I - Quoted Prices [Member] | ProShares Short VIX Short-Term Futures ETF [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | 12,640,624 | 11,092,381
Level I - Quoted Prices [Member] | ProShares Ultra Bloomberg Crude Oil [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 233,476,941 | 313,465,007
Level I - Quoted Prices [Member] | ProShares Ultra Bloomberg Crude Oil [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | (3,515,232) | 26,291,716
Level I - Quoted Prices [Member] | ProShares Ultra Bloomberg Natural Gas [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 64,459,117 | 263,260,158
Level I - Quoted Prices [Member] | ProShares Ultra Bloomberg Natural Gas [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | 43,607,070 | (310,613,969)
Level I - Quoted Prices [Member] | ProShares Ultra Gold [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 59,507,594 | 129,123,489
Level I - Quoted Prices [Member] | ProShares Ultra Gold [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | 4,096,275 | 3,242,088
Level I - Quoted Prices [Member] | ProShares Ultra Silver [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 114,276,025 | 228,657,634
Level I - Quoted Prices [Member] | ProShares Ultra Silver [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | 12,400,748 | 29,426,574
Level I - Quoted Prices [Member] | ProShares Ultra VIX Short-Term Futures ETF [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  |  | 34,732,372
Level I - Quoted Prices [Member] | ProShares Ultra VIX Short-Term Futures ETF [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | (31,183,911) | (36,555,453)
Level I - Quoted Prices [Member] | ProShares UltraShort Bloomberg Crude Oil [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 49,683,885 | 89,426,935
Level I - Quoted Prices [Member] | ProShares UltraShort Bloomberg Crude Oil [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | 22,436,319 | 10,244,893
Level I - Quoted Prices [Member] | ProShares UltraShort Bloomberg Natural Gas [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  |  | 61,482,526
Level I - Quoted Prices [Member] | ProShares UltraShort Bloomberg Natural Gas [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | (3,553,507) | 85,889,398
Level I - Quoted Prices [Member] | ProShares UltraShort Euro [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  |  | 39,996,624
Level I - Quoted Prices [Member] | ProShares UltraShort Gold [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | (144,231) | (98,886)
Level I - Quoted Prices [Member] | ProShares UltraShort Silver [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | 1,689,046 | (940,500)
Level I - Quoted Prices [Member] | ProShares UltraShort Yen [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  |  | 22,998,059
Level I - Quoted Prices [Member] | ProShares VIX Mid-Term Futures ETF [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  |  | 49,882,348
Level I - Quoted Prices [Member] | ProShares VIX Mid-Term Futures ETF [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | (3,745,676) | (4,791,223)
Level I - Quoted Prices [Member] | ProShares VIX Short-Term Futures ETF [Member] | Short-Term U.S. Government and Agencies [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 59,660,373 | 89,347,714
Level I - Quoted Prices [Member] | ProShares VIX Short-Term Futures ETF [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | (9,664,094) | (9,796,823)
Level II - Other Significant Observable Inputs [Member] | Foreign Currency Forward Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (1,334,470) | (4,088,484)
Level II - Other Significant Observable Inputs [Member] | Swap Agreements [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 17,192,312 | 117,564,675
Level II - Other Significant Observable Inputs [Member] | ProShares Ultra Bloomberg Crude Oil [Member] | Swap Agreements [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 17,954,935 | 74,159,577
Level II - Other Significant Observable Inputs [Member] | ProShares Ultra Euro [Member] | Foreign Currency Forward Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 306,949 | 415,656
Level II - Other Significant Observable Inputs [Member] | ProShares Ultra Gold [Member] | Swap Agreements [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 3,078,593 | 6,496,466
Level II - Other Significant Observable Inputs [Member] | ProShares Ultra Silver [Member] | Swap Agreements [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (2,827,221) | 39,224,212
Level II - Other Significant Observable Inputs [Member] | ProShares Ultra Yen [Member] | Foreign Currency Forward Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 1,519,285 | 984,549
Level II - Other Significant Observable Inputs [Member] | ProShares UltraShort Euro [Member] | Foreign Currency Forward Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (1,848,779) | (2,461,256)
Level II - Other Significant Observable Inputs [Member] | ProShares UltraShort Gold [Member] | Swap Agreements [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (199,821) | (592,957)
Level II - Other Significant Observable Inputs [Member] | ProShares UltraShort Silver [Member] | Swap Agreements [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (814,174) | (1,722,623)
Level II - Other Significant Observable Inputs [Member] | ProShares UltraShort Yen [Member] | Foreign Currency Forward Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | $ (1,311,925) | $ (3,027,433)
[1] | Includes cumulative appreciation (depreciation) of futures contracts as reported in the Schedule of Investments. Only current day’s variation margin is reported within the Statements of Financial Condition in receivable/payable on open futures.

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- Definition Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 35 -Paragraph 54B -Publisher FASB -URI https://asc.fasb.org//1943274/2147482134/820-10-35-54B Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482106/820-10-50-6A + Details
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