US Bitcoin spot ETFs hemorrhaged $333.6 million on May 26, roughly 4,320 BTC walking out the door in a single trading session. Ethereum spot ETFs joined the exodus with $35 million in net outflows on the same day, according to data from SoSoValue.
May’s rough ride in numbers
The May 26 outflow sits in the context of a month that has been consistently unkind to Bitcoin ETF holders. Earlier in the month, Bitcoin spot ETFs saw $635 million leave on May 13, followed by an even larger $649 million outflow on May 18. Then came a $105 million outflow on May 22. And now $333.6 million on the 26th.
The major issuers behind these products, BlackRock, Fidelity, and Grayscale, are the ones driving these flow dynamics. When their funds see coordinated outflows, it tends to ripple across the entire crypto market.
SoSoValue’s daily flow reports have become the go-to dataset for tracking these movements, offering granular visibility into how each issuer’s products are performing. The platform tracks flows across the full spectrum of US spot products, making it possible to identify whether outflows are concentrated in specific funds or spread broadly across the market.
