BlockBeats News, May 19th, the US spot Bitcoin ETF recorded a net outflow of approximately $648.6 million on Monday, marking the largest single-day outflow since January 29, 2026, and continuing the trend of around $1 billion in net outflows from last week.

Among them, BlackRock's iShares Bitcoin Trust (IBIT) saw the largest single-day outflow of about $448.3 million, followed by the ARK 21Shares Bitcoin ETF (ARKB) and the Fidelity Wise Origin Bitcoin Fund (FBTC). Products from Bitwise, VanEck, Invesco, and Franklin Templeton also experienced outflows.

Analysts believe that the recent US-Iran geopolitical conflict, rising oil prices, and the increase in US Treasury bond yields have exacerbated market concerns about the sustainability of inflation, prompting some institutional funds to temporarily shift to safe-haven assets and take profits. At the same time, the rise in US risk-free Treasury yields has also diminished the attractiveness of Bitcoin ETFs to institutional funds.

Despite the heightened short-term market volatility, some analysts still believe that the overall structural trend of Bitcoin remains intact, and the continuous growth in stablecoin market capitalization also indicates that off-exchange funds are still awaiting potential buying opportunities at lower levels.