Statements of Changes in Net Assets - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Increase (decrease) in net assets resulting from operations
Net investment loss	$ (1,466)	$ (1,860)
Net realized gain (loss) on investment in bitcoin transferred to pay Sponsor Fee	812	1,151
Net realized gain (loss) on In-Kind Redemptions of bitcoin	8,810	0
Net realized gain (loss) on investment in bitcoin sold for redemptions	(31,390)	23,850
Net change in unrealized appreciation (depreciation)	(745,422)	(476,361)
Net increase (decrease) in net assets resulting from operations	(768,656)	(453,220)
Increase (decrease) in net assets from capital share transactions
Creations for Shares issued	573,319	690,590
Redemptions for Shares redeemed	(622,643)	(866,743)
Net increase (decrease) in net assets resulting from capital share transactions	(49,324)	(176,153)
Total increase (decrease) in net assets from operations and capital share transactions	(817,980)	(629,373)
Net assets
Beginning of period	3,367,050	3,762,039
End of period	$ 2,549,070	$ 3,132,666
Increase (Decrease) in Partners' Capital [Roll Forward]
Shares issued	13,220,000	12,720,000
Shares redeemed	(14,780,000)	(16,880,000)
Net increase (decrease) in Shares issued and outstanding	(1,560,000)	(4,160,000)

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Increase in net assets from capital share transactions.

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Net realized gain (loss) on In-Kind Redemptions of bitcoin

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Realized investment gains losses related to redemptions.

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Amount of net assets (liabilities).

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Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

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Changes in the ownership interest during the period of each class of partners. Partners include general, limited and preferred partners.

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