v3.25.1
Statements of Changes in Net Assets - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Dec. 31, 2024
(Decrease) increase in net assets from operations:      
Net investment loss $ (68,939) $ (94,878)  
Net realized gain on investment in Bitcoin sold to pay expenses 57,881 73,632 $ 232,398
Net realized gain on investment in Bitcoin sold for redemption of Shares 1,029,931 11,695,719 17,830,575
Net realized gain on investment in Bitcoin sold for Initial Distribution (Return of Capital)     1,410,878
Net change in unrealized appreciation on investment in Bitcoin (3,218,384) 475,553 (3,092,838)
Net (decrease) increase in net assets resulting from operations (2,199,511) 12,150,026  
Decrease in net assets from capital share transactions:      
Shares issued 192,570 79,244  
Shares redeemed (1,227,181) (14,777,922)  
Net decrease in net assets resulting from capital share transactions (1,034,611) (14,698,678)  
Total decrease in net assets from operations and capital share transactions (3,234,122) (2,548,652)  
Net assets:      
Beginning of period 19,182,244 26,350,470 26,350,470
End of period $ 15,948,122 $ 23,801,818 $ 19,182,244
Change in Shares outstanding:      
Shares outstanding at beginning of period 258,950,100 692,370,100 692,370,100
Shares issued 2,480,000 1,540,000  
Shares redeemed (16,650,000) (317,940,000)  
Net decrease in Shares (14,170,000) (316,400,000)  
Shares outstanding at end of period 244,780,100 375,970,100 258,950,100