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Schedule of Investments (Unaudited) (Parentheticals) - USD ($)
 3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
-1x Short VIX Futures ETF [Member]    
Cost of purchase option $ 656,245 [1] $ 787,742
Investment percentage 0.10% 0.50%
Cost of investment $ 656,245 $ 787,742
Other assets in excess of liabilities 55.70% [2] 70.20% [3]
Total net assets, percentage 100.00% 100.00%
-1x Short VIX Futures ETF [Member] | Money Market Deposit Account [Member]    
Money Market Deposit Account 44.20% [4] 29.30% [5]
-1x Short VIX Futures ETF [Member] | Call Option [Member] | CBOE Volatility Index [Member]    
Expiration May 19, 2026 [1],[6],[7] Feb. 18, 2026 [8],[9]
Exercise Price (in Dollars per share) $ 55 [1],[6],[7] $ 28 [8],[9]
2x Long VIX Futures ETF [Member]    
Investment percentage 0.00% 0.00%
Cost of investment $ 0 $ 0
Other assets in excess of liabilities 51.90% [10] 81.10% [11]
Total net assets, percentage 100.00% 100.00%
2x Long VIX Futures ETF [Member] | Money Market Deposit Account [Member]    
Money Market Deposit Account 48.10% [12] 18.90% [13]
[1] Non-income producing security.
[2] Includes cash of $158,007,917 that was pledged as collateral for futures and options contracts.
[3] Includes cash of $154,886,352 that was pledged as collateral for futures and options contracts.
[4] The U.S. Bank Money Market Deposit Account (the “MMDA”) is a short-term vehicle in which the Fund holds cash balances. The MMDA will bear interest at a variable rate that is determined based on market conditions and is subject to change daily. The rate as of March 31, 2026 was 3.15%.
[5] The U.S. Bank Money Market Deposit Account (the “MMDA”) is a short-term vehicle in which the Fund holds cash balances. The MMDA will bear interest at a variable rate that is determined based on market conditions and is subject to change daily. The rate as of December 31, 2025 was 3.15%.
[6] 100 shares per contract.
[7] Exchange-traded.
[8] 100 shares per contract.
[9] Exchange-traded.
[10] Includes cash of $201,645,499 that was pledged as collateral for futures and options contracts.
[11] Includes cash of $263,069,326 that was pledged as collateral for futures and options contracts.
[12] The U.S. Bank Money Market Deposit Account (the “MMDA”) is a short-term vehicle in which the Fund holds cash balances. The MMDA will bear interest at a variable rate that is determined based on market conditions and is subject to change daily. The rate as of March 31, 2026 was 3.15%.
[13] The U.S. Bank Money Market Deposit Account (the “MMDA”) is a short-term vehicle in which the Fund holds cash balances. The MMDA will bear interest at a variable rate that is determined based on market conditions and is subject to change daily. The rate as of December 31, 2025 was 3.15%.