U.S. spot crypto ETFs recorded a combined outflow of approximately $219.50 million on March 18 according to SoSoValue data, with Bitcoin funds shedding $163.50 million and Ethereum funds adding another $55.70 million to the total, according to SoSoValue data.
The Bitcoin ETF Picture
Bitcoin ETFs collectively sold 2,210 BTC worth $163.50 million across the session. Fidelity was responsible for the largest single outflow, selling 1,410 BTC valued at $103.80 million. That represents 63.8% of the total Bitcoin ETF outflow for the day coming from a single issuer.
BlackRock sold 459 BTC worth $33.90 million. Grayscale followed with 255 BTC at $18.80 million. Bitwise recorded the smallest Bitcoin outflow among active sellers at 95 BTC worth $7 million. The remaining issuers, including those tracking Litecoin, Dogecoin, Polkadot, Chainlink, Hedera, and Avalanche, recorded zero flows in either direction.
Fidelity’s outflow size relative to its peers is the most significant data point in the Bitcoin breakdown. BlackRock’s $33.90 million exit is meaningful on its own. Fidelity moving three times that amount in the same session suggests a deliberate reduction in positioning rather than routine rebalancing.
The Ethereum ETF Picture
Ethereum ETFs recorded a combined outflow of 24,045 ETH worth $55.70 million. Fidelity again led, selling 16,016 ETH valued at $37.10 million. That is 66.6% of the total Ethereum ETF outflow concentrated in a single issuer for the second time in the same session.
Grayscale sold 3,842 ETH at $8.90 million. VanEck recorded 2,072 ETH worth $4.80 million. Bitwise added 2,029 ETH at $4.70 million. BlackRock’s Ethereum outflow was comparatively modest at 561 ETH worth $1.30 million.
Solana and the Rest
Solana ETFs recorded a minor outflow of 3,172 SOL worth approximately $300,000. That figure is negligible relative to the Bitcoin and Ethereum movements and reflects the smaller scale of Solana ETF assets under management rather than a proportionally significant redemption event.
Every other tracked asset, Litecoin, Dogecoin, Polkadot, Chainlink, Hedera, and Avalanche, recorded zero flows. No inflows were recorded across any issuer or asset on the day.
What the Numbers Reflect
A $219.50 million single-day outflow across U.S. spot crypto ETFs is consistent with the broader market environment. Bitcoin fell below $70,000 on March 19 following the Federal Reserve’s hawkish dot plot, which projected just one rate cut for the remainder of 2026. Institutional holders reducing ETF exposure into that environment is a rational response to a liquidity outlook that has shifted materially against risk assets.
Fidelity’s dominance of both the Bitcoin and Ethereum outflow tables on the same day is the structural observation that stands out. Whether that reflects client redemptions, internal portfolio management, or tactical repositioning is not visible in the flow data alone. The magnitude is clear. The direction is uniform across both assets. That uniformity across Bitcoin and Ethereum from the same issuer in the same session is not a coincidence.
