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Investments - Schedule of Average Notional Value Contracts (Details) - USD ($)	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
-1x Short VIX Futures ETF [Member] | Long Futures Contracts [Member]
Schedule of Average Notional Value Contracts [Line Items]
Average notional value
-1x Short VIX Futures ETF [Member] | Short Futures Contracts [Member]
Schedule of Average Notional Value Contracts [Line Items]
Average notional value	(273,506,050)	(294,031,130)
-1x Short VIX Futures ETF [Member] | Purchased Options Contracts [Member]
Schedule of Average Notional Value Contracts [Line Items]
Average notional value	13,377,600	22,060,300
2x Long VIX Futures ETF [Member] | Long Futures Contracts [Member]
Schedule of Average Notional Value Contracts [Line Items]
Average notional value	689,615,808	361,208,955
2x Long VIX Futures ETF [Member] | Short Futures Contracts [Member]
Schedule of Average Notional Value Contracts [Line Items]
Average notional value
2x Long VIX Futures ETF [Member] | Purchased Options Contracts [Member]
Schedule of Average Notional Value Contracts [Line Items]
Average notional value

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- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

No definition available.

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- Definition

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+ References

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-Topic 815
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