STATEMENTS OF CHANGES IN NET ASSETS (UNAUDITED) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023	Jun. 30, 2024
Increase in net assets from operations:
Net investment loss	$ (4,138,000)	$ (1,980,000)	$ (7,273,000)	$ (3,564,000)
Net realized gain on investments in digital assets	3,708,000	1,343,000	6,848,000	3,044,000
Net change in unrealized appreciation on investments in digital assets	232,027,000	134,194,000	211,669,000	101,674,000
Net increase in net assets resulting from operations	231,597,000	133,557,000	211,244,000	101,154,000
Increase in net assets from capital share transactions:
Shares issued	0	0	0	0
Net increase in net assets resulting from capital share transactions	0	0	0	0
Total increase in net assets from operations and capital share transactions	231,597,000	133,557,000	211,244,000	101,154,000
Net assets:
Beginning of period	506,603,000	240,229,000	526,956,000	272,632,000	$ 272,632,000
End of period	$ 738,200,000	$ 373,786,000	$ 738,200,000	$ 373,786,000	$ 526,956,000
Change in Shares outstanding:
Shares outstanding at beginning of period	15,867,400	15,867,400	15,867,400	15,867,400	15,867,400
Shares issued	0	0	0	0
Net increase in Shares	0	0	0	0
Shares outstanding at end of period	15,867,400	15,867,400	15,867,400	15,867,400	15,867,400