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Statements of Changes in Net Assets (Unaudited)
 9 Months Ended
Sep. 30, 2022
USD ($)
-1x Short VIX Futures ETF  
OPERATIONS  
Net investment loss $ (230,841)
Net realized gain (loss) on investments and futures contracts 8,077,788
Net change in unrealized appreciation (depreciation) of investments and futures contracts (6,278,300)
Net increase (decrease) in net assets resulting from operations 1,568,647
CAPITAL SHARE TRANSACTIONS  
Shares sold 37,128,501
Shares redeemed (29,971,993)
Net increase in net assets from capital share transactions 7,156,508
Total increase in net assets 8,725,155
NET ASSETS  
Beginning of Period 46,889,371
End of Period 55,614,526
2x Long VIX Futures ETF  
OPERATIONS  
Net investment loss (495,724)
Net realized gain (loss) on investments and futures contracts (22,686,414)
Net change in unrealized appreciation (depreciation) of investments and futures contracts 20,574,735
Net increase (decrease) in net assets resulting from operations (2,607,402)
CAPITAL SHARE TRANSACTIONS  
Shares sold 148,158,278
Shares redeemed (112,204,673)
Net increase in net assets from capital share transactions 35,953,605
Total increase in net assets 33,346,203
NET ASSETS  
Beginning of Period 60,436,455
End of Period $ 93,782,658