According to @FarsideUK, Fidelity’s U.S. spot Bitcoin ETF (FBTC) recorded a daily net inflow of 26.7 million USD on Dec 17, 2025, source: Farside Investors Twitter post and Farside Bitcoin ETF flows page. This positive flow indicates net creations exceeded redemptions for FBTC that day, and under standard ETF mechanics creations expand fund shares outstanding, source: U.S. SEC ETF overview. Because FBTC uses cash creations, net inflows require the sponsor to acquire Bitcoin to match subscriptions, informing traders about direct spot buying linked to ETF demand, source: Fidelity Wise Origin Bitcoin Trust (FBTC) prospectus.