v3.26.1
Combined Statements of Cash Flows - USD ($)
3 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Cash Flows from Operating Activities:    
Net increase (decrease) in net assets resulting from operations $ (46,591,968) $ 128,300,809
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:    
Purchases of bitcoin (5,799,462) (55,501,643)
Sales of bitcoin 54,070,691 35,531,914
Net realized gain (loss) on investment in bitcoin 396,857 (9,019,211)
Net change in unrealized appreciation (depreciation) on investment in bitcoin 45,989,896 (119,518,907)
Change in operating assets and liabilities:    
Sponsor’s fee payable (12,812) (64,025)
Net cash provided by (used in) operating activities 48,053,202 (20,271,063)
Cash Flows from Financing Activities:    
Proceeds from issuance of Shares 5,799,402 55,501,643
Payments on Shares redeemed (53,852,604) (35,230,580)
Net cash provided by (used in) financing activities (48,053,202) 20,271,063
Cash    
Net increase in cash 0 0
Cash, beginning of period 0 0
Cash, end of period 0 0
Franklin Bitcoin ETF [Member]    
Cash Flows from Operating Activities:    
Net increase (decrease) in net assets resulting from operations (46,591,968) 128,300,809
Adjustments to reconcile net increase (decrease) in net assets resulting from operations to net cash provided by (used in) operating activities:    
Purchases of bitcoin (5,799,462) (55,501,643)
Sales of bitcoin 54,070,691 35,531,914
Net realized gain (loss) on investment in bitcoin 396,857 (9,019,211)
Net change in unrealized appreciation (depreciation) on investment in bitcoin 45,989,896 (119,518,907)
Change in operating assets and liabilities:    
Sponsor’s fee payable (12,812) (64,025)
Net cash provided by (used in) operating activities 48,053,202 (20,271,063)
Cash Flows from Financing Activities:    
Proceeds from issuance of Shares 5,799,402 55,501,643
Payments on Shares redeemed (53,852,604) (35,230,580)
Net cash provided by (used in) financing activities (48,053,202) 20,271,063
Cash    
Net increase in cash 0 0
Cash, beginning of period 0 0
Cash, end of period $ 0 $ 0