ChainCatcher report, according to SoSoValue data, Bitcoin spot ETFs recorded a total net outflow of $290 million yesterday (Eastern Time, May 15). The Bitcoin spot ETF with the largest single-day net outflow was BlackRock’s IBIT, which saw a net outflow of $136 million; IBIT’s cumulative net inflow to date stands at $65.781 billion. Second was Ark Invest and 21Shares’ ARKB, with a single-day net outflow of $524.817 million; ARKB’s cumulative net inflow to date is $13.89 billion. As of the time of this report, the total net asset value of Bitcoin spot ETFs is $104.289 billion, with the ETF net asset ratio (market value as a percentage of Bitcoin’s total market cap) at 6.58%, and cumulative net inflows since inception reaching $58.34 billion.
Bitcoin spot ETFs recorded a $290 million net outflow on May 15, 2026.
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Summary
Bitcoin news: On May 15 (EDT), Bitcoin spot ETFs recorded a $290 million net outflow, according to SoSoValue data. BlackRock’s IBIT led with a $136 million outflow, followed by Ark Invest and 21Shares’ ARKB with a $52.48 million outflow. Bitcoin analysis shows the total net asset value of these ETFs is $104.29 billion, representing 6.58% of Bitcoin’s total market cap.
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