BlackRock’s IBIT and Fidelity’s FBTC capture most new capital in U.S. spot bitcoin ETFs, sidelining smaller issuers amid a winner-take-most shift.
BlackRock’s iShares Bitcoin Trust (IBIT) and Fidelity’s Wise Origin Bitcoin Fund (FBTC) now account for the bulk of new inflows into U.S. spot bitcoin ETFs. The two funds have attracted institutional capital even as bitcoin fell roughly 29% year-to-date and other ETFs faced redemptions, reinforcing their dominance in the market.
When spot bitcoin ETFs launched in January 2024, over a dozen issuers competed, including Ark Invest, Bitwise, and VanEck. Eighteen months later, IBIT and FBTC have consolidated control, leveraging scale, liquidity, and distribution networks to outpace smaller rivals. Smaller funds now play a minimal role in shaping overall flows.
The shift reflects a broader trend toward consolidation in the ETF industry, where larger players benefit from established investor relationships and lower costs. Smaller issuers struggle to compete as institutional demand concentrates around the two largest funds.