v3.25.2
Schedule of Investments - Short-Term U.S. Government and Agency Obligations (Detail) - U.S. Government Agencies Short-term Debt Securities [Member] - USD ($)
Jun. 30, 2025
Dec. 31, 2024
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value $ 319,752,668 $ 473,819,625
ProShares Ultra Bloomberg Crude Oil [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 49,959,555 99,751,500
ProShares Ultra Bloomberg Crude Oil [Member] | U.S. Treasury Bills 4.401% due 07/08/25 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 50,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 49,959,555  
ProShares Ultra Bloomberg Natural Gas [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 19,983,822 99,751,500
ProShares Ultra Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.401% due 07/08/25 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [2] 20,000,000  
Short-term U.S. government and agency obligations, value [2] 19,983,822  
ProShares Ultra Gold [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 74,939,332 74,813,625
ProShares Ultra Gold [Member] | U.S. Treasury Bills 4.401% due 07/08/25 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 75,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 74,939,332  
ProShares Ultra Silver [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 119,914,448 124,689,375
ProShares Ultra Silver [Member] | U.S. Treasury Bills 4.421% due 07/03/25 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 20,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 19,995,338  
ProShares Ultra Silver [Member] | U.S. Treasury Bills 4.401% due 07/08/25 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [1],[2] 100,000,000  
Short-term U.S. government and agency obligations, value [1],[2] 99,919,110  
ProShares Ultra VIX Short-Term Futures ETF [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 14,987,867 24,937,875
ProShares Ultra VIX Short-Term Futures ETF [Member] | U.S. Treasury Bills 4.401% due 07/08/25 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [2] 15,000,000  
Short-term U.S. government and agency obligations, value [2] 14,987,867  
ProShares UltraShort Bloomberg Natural Gas [Member]    
Schedule of Investments [Line Items]    
Short-term U.S. government and agency obligations, value 39,967,644 $ 0
ProShares UltraShort Bloomberg Natural Gas [Member] | U.S. Treasury Bills 4.401% due 07/08/25 [Member]    
Schedule of Investments [Line Items]    
Principal Amount [2] 40,000,000  
Short-term U.S. government and agency obligations, value [2] $ 39,967,644  
[1] All or partial amount pledged as collateral for swap agreements.
[2] Rates shown represent discount rate at the time of purchase.