v3.26.1
Schedule of Investments (Unaudited) - Affiliated Investments (Details)
 2 Months Ended
Jun. 30, 2026
USD ($)
shares
Investments – affiliated $ (1,199,847)
Income 20
Investment, Affiliated Issuer [Member]  
Net realized gain (loss) 0
Investments – affiliated (417,644)
Ending value 14,251,772 [1]
Income 20
Capital Gain Distributions from Underlying Funds 0
BlackRock Cash Funds: Treasury, SL Agency Shares [Member]  
Ending value $ 20,094 [2],[3]
Shares Held at period end (in shares) | shares 20,094 [2],[3]
BlackRock Cash Funds: Treasury, SL Agency Shares [Member] | Investment, Affiliated Issuer [Member]  
Beginning value $ 0
Purchases at cost 20,094 [4]
Proceeds from sales 0
Net realized gain (loss) 0
Investments – affiliated 0
Ending value $ 20,094
Shares Held at period end (in shares) | shares 20,094
Income $ 20
Capital Gain Distributions from Underlying Funds 0
iShares Bitcoin Trust ETF [Member]  
Ending value $ 14,231,678 [2],[5]
Shares Held at period end (in shares) | shares 425,080 [2],[5]
iShares Bitcoin Trust ETF [Member] | Investment, Affiliated Issuer [Member]  
Beginning value $ 0
Purchases at cost 14,649,322
Proceeds from sales 0
Net realized gain (loss) 0
Investments – affiliated (417,644)
Ending value $ 14,231,678
Shares Held at period end (in shares) | shares 425,080
Income $ 0
Capital Gain Distributions from Underlying Funds $ 0
[1] Cost of investments — affiliated is $14,669,416.
[2] Affiliate of the Trust.
[3] Annualized 7-day yield as of period end.
[4] Represents net amount purchased (sold).
[5] All or a portion of the security has been pledged and/or segregated as collateral in connection with outstanding exchange-traded options written.