Both are spot Bitcoin ETFs approved in January 2024, but iShares (BlackRock) dominates on AUM and liquidity while Fidelity wins on no-sponsor-fee period for some investors. For most people, IBIT's liquidity edge is hard to ignore.
IBIT gathered more AUM in its first year than most ETFs collect in a decade — Larry Fink went from calling Bitcoin an 'index of money laundering' to running the world's biggest Bitcoin fund. Glow-up of the century.
You already invest on Fidelity's platform
FBTC is commission-free and deeply integrated — zero friction for existing Fidelity customers.
→ Pick Fidelity Bitcoin ETF (FBTC)You want maximum liquidity and tightest spreads for active trading
IBIT's volume dwarfs nearly every ETF on the market, making entries and exits razor-sharp.
→ Pick iShares Bitcoin Trust (IBIT)You want the lowest cost during the fee waiver period
IBIT's 0.12% promotional rate beats FBTC's 0.25% until 2026 or $70B AUM threshold.
→ Pick iShares Bitcoin Trust (IBIT)You prefer self-custody of the underlying asset by the issuer
Fidelity Digital Assets holds FBTC's Bitcoin in-house — no third-party custodian like Coinbase involved.
→ Pick Fidelity Bitcoin ETF (FBTC)