Bitcoin ETFs Record Largest One-Day Outflow Since January

Spot Bitcoin exchange-traded funds recorded $635.23 million in outflows on May 13, the largest single-day outflow since Jan. 29, SoSoValue data show. For the week, Bitcoin ETFs were down $841.19 million.

The outflows interrupted a six-week run of positive weekly inflows that had brought about $3.4 billion into spot Bitcoin products, the longest streak since July 2025. April was the strongest month of 2026 for Bitcoin funds, with $1.97 billion in inflows, led by BlackRock’s iShares Bitcoin Trust.

In early May, Bitcoin ETFs attracted $1.68 billion from May 1 through May 6. The funds then had four consecutive days of outflows, with a modest $27.29 million inflow on May 11 before the May 13 withdrawal pushed weekly totals into negative territory.

Flows into other large-cap crypto ETFs also slowed. Ethereum funds recorded three straight days of outflows during the same period. XRP ETFs logged three days with zero flows. Dogecoin ETFs saw three inflow days in May, each with small amounts, and Chainlink products posted four inflow days.

Solana ETFs did not report any outflow days in May, collecting $90.83 million across eight inflow sessions and one flat day.

Newer products showed early investor interest. 21Shares’ Hyperliquid (HYPE) ETF, which debuted on May 12, posted positive net flows of $2.52 million across its first two trading sessions.

All flow figures and dates in this report are from SoSoValue.