v3.24.1.u1

Significant Accounting Policies - Valuation of Investments using Fair Value Hierarchy (Detail) - USD ($) | Mar. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | $ 1,109,115,143 | $ 751,395,550
ProShares Short VIX Short-Term Futures ETF [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 156,770,504 | 122,050,966
ProShares Ultra Bloomberg Crude Oil [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 371,553,009 | 247,916,644
ProShares Ultra Bloomberg Natural Gas [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (92,772,278) | 108,066,187
ProShares Ultra Euro [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (202,565) | 306,949
ProShares Ultra Gold [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 148,500,146 | 66,682,462
ProShares Ultra Silver [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 236,294,268 | 123,849,552
ProShares Ultra VIX Short-Term Futures ETF [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 41,409,089 | (31,183,911)
ProShares Ultra Yen [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (2,059,646) | 1,519,285
ProShares UltraShort Bloomberg Crude Oil [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 111,819,420 | 72,120,204
ProShares UltraShort Bloomberg Natural Gas [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 74,724,426 | (3,553,507)
ProShares UltraShort Euro [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 1,118,954 | (1,848,779)
ProShares UltraShort Gold [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (688,631) | (344,052)
ProShares UltraShort Silver [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (543,730) | 874,872
ProShares UltraShort Yen [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 1,626,227 | (1,311,925)
ProShares VIX Mid-Term Futures ETF [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | (955,885) | (3,745,676)
ProShares VIX Short-Term Futures ETF [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 62,521,835 | 49,996,279
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 |  | 1,101,171,661 | 690,474,277
Level I - Quoted Prices [Member] | Futures Contracts [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure | [1] | (55,309,244) | 45,063,431
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 |  | 148,757,467 | 109,410,342
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] | 8,013,037 | 12,640,624
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 |  | 301,974,899 | 233,476,941
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] | 21,911,745 | (3,515,232)
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
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] | (92,772,278) | 43,607,070
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 |  | 138,587,964 | 59,507,594
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] | 2,377,155 | 4,096,275
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 |  | 205,080,219 | 114,276,025
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] | 22,681,594 | 12,400,748
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 |  | 59,307,872 |
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] | (17,898,783) | (31,183,911)
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 |  | 123,814,531 | 49,683,885
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] | (11,995,111) | 22,436,319
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 |  | 54,447,299 |
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] | 20,277,127 | (3,553,507)
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] | (207,050) | (144,231)
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] | (61,220) | 1,689,046
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] | (955,885) | (3,745,676)
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 |  | 69,201,410 | 59,660,373
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] | (6,679,575) | (9,664,094)
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 |  | 482,970 | (1,334,470)
Level II - Other Significant Observable Inputs [Member] | Swap Agreements [Member] |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |
Investments, fair value disclosure |  | 62,769,756 | 17,192,312
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 |  | 47,666,365 | 17,954,935
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 |  | (202,565) | 306,949
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 |  | 7,535,027 | 3,078,593
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 |  | 8,532,455 | (2,827,221)
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 |  | (2,059,646) | 1,519,285
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 |  | 1,118,954 | (1,848,779)
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 |  | (481,581) | (199,821)
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 |  | (482,510) | (814,174)
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 |  | $ 1,626,227 | $ (1,311,925)
[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.

X
- 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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