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Investments - Schedule of Gross Amounts Not Offset in the Statements of Financial Condition (Details) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
-1x Short VIX Futures ETF [Member]    
Schedule of Gross Amounts Not Offset in the Statements of Financial Condition [Line Items]    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition $ 29,193,177 $ (2,218,776)
Financial Instruments for the Benefit of (the Funds) / the Counterparties
Cash Collateral for the Benefit of (the Funds) / the Counterparties
Net Amount 29,193,177 (2,218,776)
2x Long VIX Futures ETF [Member]    
Schedule of Gross Amounts Not Offset in the Statements of Financial Condition [Line Items]    
Amounts of Recognized Assets / (Liabilities) presented in the Statements of Financial Condition (64,933,436) 6,528,043
Financial Instruments for the Benefit of (the Funds) / the Counterparties
Cash Collateral for the Benefit of (the Funds) / the Counterparties
Net Amount $ (64,933,436) $ 6,528,043