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Schedule of Investments (Unaudited) - USD ($)
 6 Months Ended 12 Months Ended
Jun. 30, 2023
Dec. 31, 2022
-1 x Short VIX Futures ETF [Member]    
TOTAL INVESTMENTS  
Other Assets in Excess of Liabilities 72,302,413 [1] $ 45,874,003 [2]
TOTAL NET ASSETS 72,302,413 46,378,603
Underlying Face Amount at Market Value 6,518,579  
Cash - 1.1% (a) [2]   504,600
-1 x Short VIX Futures ETF [Member] | CBOE VIX Futures [Member]    
Contracts (2,590) (1,150)
Unrealized Appreciation/ (Depreciation) 5,483,830 1,058,570
Underlying Face Amount at Market Value   1,156,106
-1 x Short VIX Futures ETF [Member] | CBOE VIX Futures [Member]    
Contracts (1,883) (804)
Unrealized Appreciation/ (Depreciation) 1,034,749 97,536
2x Long VIX Futures ETF [Member]    
TOTAL INVESTMENTS 9,517,548 8,250,285
Other Assets in Excess of Liabilities 75,821,254 [3] 117,238,481 [4]
TOTAL NET ASSETS 85,338,802 125,488,766
Underlying Face Amount at Market Value (19,791,036)  
TOTAL SHORT TERM INVESTMENT 9,517,548 8,250,285
2x Long VIX Futures ETF [Member] | CBOE VIX Futures [Member]    
Contracts 6,356 6,221
Unrealized Appreciation/ (Depreciation) (16,558,756) (8,416,975)
Underlying Face Amount at Market Value   (9,203,522)
2x Long VIX Futures ETF [Member] | CBOE VIX Futures [Member]    
Contracts 4,623 4,355
Unrealized Appreciation/ (Depreciation) (3,232,280) (786,547)
First American Government Obligations Fund [Member] | 2x Long VIX Futures ETF [Member]    
First American Government Obligations Fund $ 9,517,548 [5] $ 8,250,285 [6]
[1] $68,703,813 of cash is pledged as collateral for futures contracts.
[2] $48,144,554 of cash os pledged as collateral for futures contracts
[3] $83,302,779 of cash is pledged as collateral for futures contracts.
[4] $114,821,272 of cash is pledged as collateral for futures contracts.
[5] Represents annualized seven-day yield at June 30, 2023 (Unaudited)
[6] Represents annualized seven-day yield at December 31, 2022