Generated August 15, 2026.
Figures quoted in this analysis are from its generation date and may lag the live snapshot table above, which always shows the latest data.
Overview
FBTC and IBIT are both spot-bitcoin ETFs launched within a day of each other in January 2024, offering direct exposure to bitcoin's price movement without holding the cryptocurrency directly. The key distinction is issuer and scale: IBIT is the larger fund by assets and charges a lower expense ratio, while FBTC is Fidelity's entry into the bitcoin ETF space. Both track bitcoin's spot price and distribute no income.
How they differ
IBIT holds $47.3B in assets versus FBTC's $10.9B, making IBIT more than four times larger. The expense ratio gap is modest but meaningful: IBIT charges 0.12% annually while FBTC charges 0.25%, a 13-basis-point difference that compounds over time. Both ETFs have nearly identical beta (IBIT at 1.8887, FBTC at 1.8779), reflecting equivalent sensitivity to bitcoin price swings. Neither distributes income, so returns depend entirely on bitcoin price appreciation. Structurally, both hold actual bitcoin, though FBTC is organized as a Fidelity fund and IBIT as an iShares product, a distinction that may matter to investors with existing relationships at either platform.
Who each is best for
- IBIT: Fits investors seeking maximum cost efficiency and the scale advantages of a larger fund, particularly those indifferent to issuer and comfortable with iShares' custody and fund operations.
- FBTC: Fits investors with existing Fidelity relationships who value integrated account management or prefer Fidelity's fund administration, even if trading a higher expense ratio for convenience.
Key risks to know
- Bitcoin volatility: Both ETFs carry a beta near 1.88, meaning they amplify broad bitcoin price swings. A 10% move in bitcoin translates to roughly an 18% move in the fund price, creating significant short-term drawdown risk for investors with shorter time horizons.
- Regulatory and custody risk: Bitcoin's regulatory status remains unsettled. Changes to U.S. or foreign crypto policy, custody framework shifts, or exchange-level disruptions could affect the underlying bitcoin holdings or the funds' ability to operate.
- Liquidity concentration in bitcoin markets: While both ETFs are liquid internally, their value ultimately depends on the liquidity and pricing of the underlying bitcoin spot market, which operates continuously and across decentralized venues. Extended periods of thin liquidity in bitcoin could widen spreads.
- Expense ratio drag at current AUM: FBTC's 0.25% fee is higher than IBIT's by 13 basis points annually. Over a decade, this compounds to meaningful NAV erosion if bitcoin returns are flat or low-single-digit.
Bottom line
If you're focused on minimizing costs and don't require a specific issuer, IBIT's lower expense ratio and greater scale make it the more efficient choice. If you have a meaningful relationship with Fidelity or value integrated portfolio management there, FBTC's 13-basis-point cost premium may be a worthwhile trade-off. Both carry identical bitcoin price risk and volatility; past bitcoin performance does not predict future results.
AI-generated analysis for educational purposes only. Verify important details independently; past performance does not guarantee future results.
