BlockBeats news, on May 19, U.S. spot Bitcoin ETFs recorded a net outflow of approximately $648.6 million, marking the largest single-day outflow since January 29, 2026, and continuing last week’s net outflow trend of about $1 billion.
Among these, the BlackRock iShares Bitcoin Trust (IBIT) recorded the largest single-day outflow of approximately $448.3 million, followed by the ARK 21Shares Bitcoin ETF (ARKB) and the Fidelity Wise Origin Bitcoin Fund (FBTC). Funds from Bitwise, VanEck, Invesco, and Franklin Templeton also experienced outflows.
Analysts believe that recent geopolitical tensions between the U.S. and Iran, rising oil prices, and increasing yields on U.S. long-term Treasuries have intensified market concerns about persistent inflation, prompting some institutional funds to briefly shift toward risk-off positions and profit-taking. Meanwhile, the rising risk-free yield on U.S. Treasuries has also reduced the attractiveness of Bitcoin ETFs to institutional capital.
Despite increased short-term market volatility, some analysts believe Bitcoin’s overall structural trend remains intact, and the continued growth in stablecoin market capitalization indicates that off-chain funds are still waiting for potential entry opportunities at lower levels.