XML 50 R30.htm IDEA: XBRL DOCUMENT v3.25.4
Schedule of Investments - Foreign Currency Forward Contracts (Detail) - Foreign Currency Forward Contracts [Member]
 12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2025
EUR (€)
Dec. 31, 2025
JPY (¥)
 [1]
Dec. 31, 2024
EUR (€)
Dec. 31, 2024
JPY (¥)
ProShares Ultra Euro [Member] | Euro Contract [Member] | Contracts to Purchase [Member]            
Schedule of Investments [Line Items]            
Unrealized Appreciation (Depreciation)/Value $ 62,719 [1] $ (169,440) [2]        
ProShares Ultra Euro [Member] | Euro Contract [Member] | Contracts to Purchase [Member] | Goldman Sachs International [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Purchase $ 5,814,636 [1] $ 5,960,572 [2] € 4,947,921 [1]   € 5,751,921 [2]  
Unrealized Appreciation (Depreciation)/Value $ 31,315 [1] $ (85,224) [2]        
ProShares Ultra Euro [Member] | Euro Contract [Member] | Contracts to Purchase [Member] | UBS AG [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Purchase $ 6,083,256 [1] $ 5,901,069 [2] 5,176,502 [1]   5,694,502 [2]  
Unrealized Appreciation (Depreciation)/Value 31,404 [1] (84,216) [2]        
ProShares Ultra Euro [Member] | Euro Contract [Member] | Contracts to Sell [Member]            
Schedule of Investments [Line Items]            
Unrealized Appreciation (Depreciation)/Value $ (29) [1] $ 2,312 [2]        
ProShares Ultra Euro [Member] | Euro Contract [Member] | Contracts to Sell [Member] | Goldman Sachs International [Member]            
Schedule of Investments [Line Items]            
Settlement Date [2]   Jan. 10, 2025        
Contract to Sell [2]   $ (60,104)     (58,000)  
Unrealized Appreciation (Depreciation)/Value [2]   $ 1,109        
ProShares Ultra Euro [Member] | Euro Contract [Member] | Contracts to Sell [Member] | UBS AG [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Sell $ (47,007) [1] $ (297,410) [2] (40,000) [1]   (287,000) [2]  
Unrealized Appreciation (Depreciation)/Value (29) [1] 1,203 [2]        
ProShares Ultra Yen [Member] | Yen Contract [Member] | Contracts to Purchase [Member]            
Schedule of Investments [Line Items]            
Unrealized Appreciation (Depreciation)/Value $ (1,183,809) [1] $ (4,361,491) [2]        
ProShares Ultra Yen [Member] | Yen Contract [Member] | Contracts to Purchase [Member] | Goldman Sachs International [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Purchase $ 49,927,018 [1] $ 46,506,241 [2]   ¥ 7,816,408,056   ¥ 7,308,549,056 [2]
Unrealized Appreciation (Depreciation)/Value $ (582,024) [1] $ (2,180,271) [2]        
ProShares Ultra Yen [Member] | Yen Contract [Member] | Contracts to Purchase [Member] | UBS AG [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Purchase $ 50,679,619 [1] $ 47,848,591 [2]   7,934,232,856   7,519,501,856 [2]
Unrealized Appreciation (Depreciation)/Value (601,785) [1] (2,181,220) [2]        
ProShares Ultra Yen [Member] | Yen Contract [Member] | Contracts to Sell [Member]            
Schedule of Investments [Line Items]            
Unrealized Appreciation (Depreciation)/Value $ 1,161 [1] $ 146,194 [2]        
ProShares Ultra Yen [Member] | Yen Contract [Member] | Contracts to Sell [Member] | Goldman Sachs International [Member]            
Schedule of Investments [Line Items]            
Settlement Date [2]   Jan. 10, 2025        
Contract to Sell [2]   $ (421,719)       (66,274,000)
Unrealized Appreciation (Depreciation)/Value [2]   $ 16,187        
ProShares Ultra Yen [Member] | Yen Contract [Member] | Contracts to Sell [Member] | UBS AG [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Sell $ (2,962,294) [1] $ (4,648,486) [2]   (463,767,000)   (730,519,000) [2]
Unrealized Appreciation (Depreciation)/Value 1,161 [1] 130,007 [2]        
ProShares UltraShort Euro [Member] | Euro Contract [Member] | Contracts to Purchase [Member]            
Schedule of Investments [Line Items]            
Unrealized Appreciation (Depreciation)/Value $ 4,668 [1] $ (32,777) [2]        
ProShares UltraShort Euro [Member] | Euro Contract [Member] | Contracts to Purchase [Member] | Goldman Sachs International [Member]            
Schedule of Investments [Line Items]            
Settlement Date [1] Jan. 09, 2026          
Contract to Purchase [1] $ 1,131,686   963,000      
Unrealized Appreciation (Depreciation)/Value [1] $ (2,964)          
ProShares UltraShort Euro [Member] | Euro Contract [Member] | Contracts to Purchase [Member] | UBS AG [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Purchase $ 3,017,831 [1] $ 3,518,153 [2] 2,568,000 [1]   3,395,000 [2]  
Unrealized Appreciation (Depreciation)/Value 7,632 [1] (32,777) [2]        
ProShares UltraShort Euro [Member] | Euro Contract [Member] | Contracts to Sell [Member]            
Schedule of Investments [Line Items]            
Unrealized Appreciation (Depreciation)/Value $ (397,042) [1] $ 1,189,827 [2]        
ProShares UltraShort Euro [Member] | Euro Contract [Member] | Contracts to Sell [Member] | Goldman Sachs International [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Sell $ (36,846,510) [1] $ (39,952,817) [2] (31,354,263) [1]   (38,554,263) [2]  
Unrealized Appreciation (Depreciation)/Value $ (199,475) [1] $ 584,165 [2]        
ProShares UltraShort Euro [Member] | Euro Contract [Member] | Contracts to Sell [Member] | UBS AG [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Sell $ (38,295,416) [1] $ (47,313,413) [2] € (32,587,199) [1]   € (45,657,199) [2]  
Unrealized Appreciation (Depreciation)/Value (197,567) [1] 605,662 [2]        
ProShares UltraShort Yen [Member] | Yen Contract [Member] | Contracts to Purchase [Member]            
Schedule of Investments [Line Items]            
Unrealized Appreciation (Depreciation)/Value $ (110,834) [1] $ (55,229) [2]        
ProShares UltraShort Yen [Member] | Yen Contract [Member] | Contracts to Purchase [Member] | Goldman Sachs International [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Purchase $ 2,390,183 [1] $ 1,113,126 [2]   374,199,000   174,930,000 [2]
Unrealized Appreciation (Depreciation)/Value $ (11,672) [1] $ (43,263) [2]        
ProShares UltraShort Yen [Member] | Yen Contract [Member] | Contracts to Purchase [Member] | UBS AG [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Purchase $ 13,098,163 [1] $ 2,165,573 [2]   2,050,605,000   340,324,000 [2]
Unrealized Appreciation (Depreciation)/Value (99,162) [1] (11,966) [2]        
ProShares UltraShort Yen [Member] | Yen Contract [Member] | Contracts to Sell [Member]            
Schedule of Investments [Line Items]            
Unrealized Appreciation (Depreciation)/Value $ 955,069 [1] $ 2,283,588 [2]        
ProShares UltraShort Yen [Member] | Yen Contract [Member] | Contracts to Sell [Member] | Goldman Sachs International [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Sell $ (37,371,693) [1] $ (27,809,592) [2]   (5,850,788,165)   (4,370,333,165) [2]
Unrealized Appreciation (Depreciation)/Value $ 447,018 [1] $ 1,297,175 [2]        
ProShares UltraShort Yen [Member] | Yen Contract [Member] | Contracts to Sell [Member] | UBS AG [Member]            
Schedule of Investments [Line Items]            
Settlement Date Jan. 09, 2026 [1] Jan. 10, 2025 [2]        
Contract to Sell $ (49,160,690) [1] $ (27,618,506) [2]   ¥ (7,696,434,424)   ¥ (4,340,303,574) [2]
Unrealized Appreciation (Depreciation)/Value $ 508,051 [1] $ 986,413 [2]        
[1] The positions and counterparties herein are as of December 31, 2025. The Fund continually evaluates different counterparties for their transactions and counterparties are subject to change. New counterparties can be added at any time.
[2] The positions and counterparties herein are as of December 31, 2024. The Fund continually evaluates different counterparties for their transactions and counterparties are subject to change. New counterparties can be added at any time.