STATEMENTS OF CHANGES IN NET ASSETS (UNAUDITED) - USD ($)	3 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Jun. 30, 2024
Decrease in net assets from operations:
Net investment loss	$ (3,135,000)	$ (1,584,000)
Net realized gain on investments in digital assets	3,140,000	1,701,000
Net change in unrealized appreciation on investments in digital assets	(20,358,000)	(32,520,000)
Net decrease in net assets resulting from operations	(20,353,000)	(32,403,000)
Increase in net assets from capital share transactions:
Shares issued	0	0
Net increase in net assets resulting from capital share transactions	0	0
Total decrease in net assets from operations and capital share transactions	(20,353,000)	(32,403,000)
Net assets:
Beginning of period	526,956,000	272,632,000	$ 272,632,000
End of period	$ 506,603,000	$ 240,229,000	$ 526,956,000
Change in Shares outstanding:
Shares outstanding at beginning of period	15,867,400	15,867,400	15,867,400
Shares issued	0	0
Net increase in Shares	0	0
Shares outstanding at end of period	15,867,400	15,867,400	15,867,400