v3.25.2
Schedule of Investments - Futures Contracts Sold (Detail) - Contracts to Sell [Member]
Jun. 30, 2025
USD ($)
Contract
ProShares Short VIX Short-Term Futures ETF [Member]  
Schedule of Investments [Line Items]  
Unrealized Appreciation (Depreciation)/Value $ 10,392,342
ProShares Short VIX Short-Term Futures ETF [Member] | VIX Futures - Cboe, expires July 2025 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 4,021
Notional Amount at Value $ 75,242,963
Unrealized Appreciation (Depreciation)/Value $ 8,535,463
ProShares Short VIX Short-Term Futures ETF [Member] | VIX Futures - Cboe, expires August 2025 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 3,232
Notional Amount at Value $ 64,955,443
Unrealized Appreciation (Depreciation)/Value 1,856,879
Futures Contracts [Member] | ProShares UltraShort Bloomberg Crude Oil [Member]  
Schedule of Investments [Line Items]  
Unrealized Appreciation (Depreciation)/Value $ 15,855,988
Futures Contracts [Member] | ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires September 2025 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 1,406
Notional Amount at Value $ 89,772,840
Unrealized Appreciation (Depreciation)/Value $ 2,634,060
Futures Contracts [Member] | ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires December 2025 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 1,458
Notional Amount at Value $ 89,885,700
Unrealized Appreciation (Depreciation)/Value $ 8,465,935
Futures Contracts [Member] | ProShares UltraShort Bloomberg Crude Oil [Member] | WTI Crude Oil - NYMEX, expires June 2026 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 1,483
Notional Amount at Value $ 90,967,220
Unrealized Appreciation (Depreciation)/Value $ 4,755,993
Futures Contracts [Member] | ProShares UltraShort Bloomberg Natural Gas [Member] | Natural Gas NYMEX expires September 2025 [Member]  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 16,234
Notional Amount at Value $ 566,566,600
Unrealized Appreciation (Depreciation)/Value $ 40,226,449
Futures Contracts [Member] | ProShares UltraShort Gold [Member] | Gold Futures - COMEX, expires August 2025  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 98
Notional Amount at Value $ 32,415,460
Unrealized Appreciation (Depreciation)/Value $ 462,452
Futures Contracts [Member] | ProShares UltraShort Silver [Member] | Silver Futures - COMEX, expires September 2025  
Schedule of Investments [Line Items]  
Number of Contracts | Contract 190
Notional Amount at Value $ 34,363,400
Unrealized Appreciation (Depreciation)/Value $ 617,680