Total inflows across U.S. spot cryptocurrency ETFs reached approximately $654.59 million on March 4, 2026, with Bitcoin ETFs leading at $461.90 million and Ethereum ETFs adding $169.40 million. BlackRock accounted for roughly 53% of the total across both assets combined.
How the Numbers Break Down
Bitcoin spot ETFs collectively purchased 6,760 BTC worth $461.9 million on the day. BlackRock’s iShares Bitcoin Trust bought 4,490 BTC for $306.6 million, representing 66% of all Bitcoin ETF inflows on its own. Fidelity added 703 BTC worth $48 million and Grayscale purchased 792 BTC worth $54.1 million. The remaining Bitcoin ETF providers split the balance.
Ethereum spot ETFs brought in $169.4 million on 85,476 ETH. Here the distribution across providers was more even. Grayscale was the largest single buyer on the Ethereum side, purchasing 41,073 ETH worth $81.4 million. BlackRock added 19,830 ETH worth $39.3 million and Fidelity took 15,289 ETH worth $30.3 million. Combined, those three firms accounted for essentially the entire Ethereum ETF inflow on the day.
Solana spot ETFs recorded $19.1 million in inflows on 219,768 SOL, and XRP spot ETFs added $4.19 million on 3.08 million XRP. Dogecoin, Litecoin, Avalanche, Chainlink, and Hedera ETF flows were all zero on the day.
BlackRock’s Dominance in Context
BlackRock buying $306.6 million in Bitcoin and $39.30 million in Ethereum in a single day totals approximately $345.9 million across both assets. That is 53% of the entire day’s crypto ETF inflow from one firm. The concentration is not new but the scale on a single day is notable.
For context, the $458 million in Bitcoin ETF inflows flagged in Wednesday’s Santiment trending topics report was the March 2 figure. March 4 came in at $461.90 million for Bitcoin alone, marginally higher, suggesting the institutional buying pace held steady across both days rather than spiking and fading. Two consecutive days above $450 million in Bitcoin ETF inflows is a different signal than a single large day.
What Zero Flows in Five Assets Means
DOGE, LTC, AVAX, LINK, and HBAR all recorded zero ETF flows on March 4 despite the broader market rally. That is not a negative signal in isolation. These are newer and smaller ETF products with thinner institutional interest, and zero-flow days are common for assets that have not yet built consistent demand from large allocators.
What it does illustrate is the hierarchy of institutional attention. Bitcoin and Ethereum absorb the overwhelming majority of ETF inflows. Solana is building a minor but consistent presence. Everything below that is essentially waiting for institutional appetite to develop. On a day when the total crypto ETF market pulled in $654 million, five assets with their own dedicated products collectively received nothing.
That gap between Bitcoin and Ethereum on one side and the rest of the ETF universe on the other is likely to narrow over time as products mature and track records develop. It has not narrowed yet.
