Bitcoin ETFs Record $635M Outflow: Sharpest Drop Since January

The $3.29 billion of net inflows that powered US spot Bitcoin ETFs through March and April have started to reverse. On 13 May, the eleven listed funds collectively lost $635 million in net outflows, the largest single-day figure since 29 January, with BlackRock's iShares Bitcoin Trust accounting for $285 million of the total. The five-day cumulative outflow now sits at $1.26 billion, and Bitcoin has slipped back below $80,000 after stalling at the 200-day moving average just above $82,000.

A $1.26 Billion Reversal in Five Trading Days

The shift in flow direction has been sharp. According to SoSoValue data, the eleven US spot Bitcoin ETFs collectively held $59.76 billion in cumulative net inflows a week ago. That figure has now dropped to $58.5 billion, with the bulk of the decline concentrated in Wednesday's session.

IBIT's $285 million outflow stands out partly because BlackRock's product has generally been the most consistent magnet for capital across the category. The fact that even the dominant fund is now seeing meaningful redemptions points to broader sentiment rather than a flow rotation between issuers. Fidelity's FBTC, ARK's ARKB and the smaller funds all contributed to the outflow tally, with no spot fund recording meaningful net inflows on the day.

The price reaction has been measured rather than catastrophic. Bitcoin fell more than 2% over 24 hours to around $79,400, well within recent trading ranges, and macro indices including the S&P 500 and Nasdaq hit new highs on the same day. The disconnect between equities and Bitcoin during a period when traditional risk assets were rallying suggests crypto-specific drivers, primarily the ETF redemptions and renewed US inflation concerns, are doing most of the work.

The ETF Flow Signal Is Not What It Used to Be

The more interesting observation in the underlying data is that the relationship between ETF flows and Bitcoin's spot price has weakened materially over the past few months. CoinDesk's correlation analysis using SoSoValue data found the 90-day rolling Pearson coefficient between Bitcoin's daily percentage return and the daily percentage change in cumulative ETF flows currently sits at 0.16. That is statistically indistinguishable from zero, and down sharply from a peak of 0.68 in February.

The practical implication is that knowing which direction ETF flows moved on any given day no longer gives you much of an edge in predicting Bitcoin's price action. ETFs are now one institutional channel among many rather than the marginal price-setter they were during the launch phase. That does not mean flows are irrelevant. A $635 million single-day outflow still matters because it tells you about institutional risk appetite in real time, even if the day-to-day correlation with price has decayed.

Adam Haeems, head of asset management at Tesseract Group, told CoinDesk that the more useful question is whether macro conditions stay loose enough for inflows to continue doing their work. A persistently hot CPI print, a more hawkish Federal Reserve under incoming chair Kevin Warsh, or another oil shock could compress Bitcoin prices even with positive net flows.

The 200-day moving average near $82,000 remains the technical level traders are watching. Bitcoin tried and failed to break it twice this month. Each rejection has produced larger redemption days, which suggests that until BTC clears that resistance with conviction, institutional ETF allocators may keep treating rallies as opportunities to trim rather than add. The flow data over the next two weeks will indicate whether this is a short-term wobble or the start of a more sustained outflow phase.