TLDR
- BlackRock’s IBIT and Fidelity’s FBTC account for the majority of recent U.S. spot Bitcoin ETF inflows.
- On January 14, IBIT and FBTC captured over 90% of the $840.6 million total inflows.
- Similar concentration appeared on April 17 and May 1, with the two funds absorbing most new capital.
- Bitcoin is down about 29% year-to-date, yet IBIT and FBTC continue to dominate allocation days.
- Smaller ETFs such as EZBC, HODL, BRRR, and BTCW often record single-digit million daily flows.
BlackRock and Fidelity now command most new allocations into U.S. spot Bitcoin exchange-traded funds. Recent flow data shows the two firms absorb the bulk of daily inflows and shape overall direction. The pattern has strengthened through 2026 as other issuers record limited activity.
Bitcoin ETFs Flows Concentrate Around Two Issuers
When U.S. spot Bitcoin ETFs launched in January 2024, investors chose from more than a dozen products. However, flow data now shows BlackRock and Fidelity capture most institutional allocations. Farside Investors’ data highlights repeated sessions where the pair dominated inflows.
On January 14, spot Bitcoin ETFs drew $840.6 million in net inflows. BlackRock’s iShares Bitcoin Trust attracted $648.4 million, while Fidelity’s Wise Origin Bitcoin Fund added $125.4 million. Together, they represented over 90% of that day’s total inflows.
On April 17, total inflows reached $663.9 million across all products. IBIT secured $284 million, and FBTC collected $163.4 million. The two funds accounted for roughly two-thirds of new capital entering the sector.
On May 1, the trend continued as total inflows hit $629.8 million. IBIT contributed $284.4 million, and FBTC added $213.4 million. Combined, the pair drew nearly $500 million of the day’s allocations.
Bitcoin has declined about 29% year-to-date, which has pressured the broader crypto ETF complex. Between mid-May and early June, several sessions recorded heavy net outflows. Despite weaker sentiment, IBIT and FBTC frequently absorbed or limited redemptions.
Scale and Liquidity Define the Two-Firm Structure
BlackRock manages over $10 trillion in global assets and maintains wide distribution networks. Fidelity also operates one of the largest U.S. brokerage and retirement platforms. These structures support trading volume, liquidity, and access for advisers and institutions.
Many buyers include registered investment advisers, hedge funds, family offices, and pension consultants. For these allocators, issuer reputation and liquidity weigh heavily in product selection. As a result, many treat IBIT and FBTC as default vehicles for Bitcoin exposure.
Meanwhile, smaller funds post modest daily flow figures. Franklin Templeton’s EZBC, VanEck’s HODL, Valkyrie’s BRRR, and WisdomTree’s BTCW often record single-digit-million inflows. In many sessions, their flows do not alter the total sector direction.
Bitwise’s BITB and Ark’s ARKB also trail the two largest funds this year. Earlier in 2026, Trump Media & Technology Group withdrew plans for a proposed spot Bitcoin ETF. The withdrawal followed intensified competition led by BlackRock and Fidelity.
During volatile sessions, capital shifts primarily into or out of IBIT and FBTC. When investors buy aggressively, most inflows concentrate in those products. When selling increases, their activity often determines whether the sector records net inflows or outflows.
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