For several months, Bitcoin and Ethereum ETFs have become the main entry channel for institutional capital into the crypto market. But this dynamic seems to be suddenly slowing down. On May 19, 2026, Bitcoin and Ethereum spot ETFs saw massive outflows exceeding $735 million in a single session. BlackRock, Fidelity, ARK… None were spared. An institutional signal that deserves your full attention!
In brief
- Spot Bitcoin ETFs lost $648.64M in one day (3rd largest outflow of 2026).
- Ethereum ETFs post a 6th consecutive session of net outflows (-$86.31 million).
- ETF flows are becoming a key indicator for anticipating the crypto market trend.
A Black Monday for Crypto ETFs
The day of May 18, 2026 will certainly be remembered. THE Spot Bitcoin ETF recorded net outflows of $648.64 million. According to crypto experts, this is one of the biggest daily drops of the year.
And that's not all! THE Ethereum ETF also suffered a sixth consecutive day of net outflows. The latter amounts to 86.31 million dollars. In total, more than 735 million dollars left these investment vehicles in a single session.
Two factors explain this withdrawal wave according to crypto analysts:
- US inflation data from the previous week which significantly changed the Fed's monetary policy expectations. Many are betting on rising rates this year.
- geopolitical tensions linked to the American-Iranian conflict which fuel a general aversion to risk on the markets.
The result? L'Crypto Fear and Greed Index dropped to 25. This indicates extreme fear.
BlackRock leads losses
According to the dataBlackRock's IBIT fund absorbed the most violent shock with $448.36 million in withdrawals. ARK & 21Shares (ARKB) follows with $109.64 million. Fidelity's FBTC lost an additional 63.42 million.
Despite these massive withdrawals, the trading volume on Bitcoin ETFs jumped to $3.14 billion. This indicates an active repositioning of institutional portfolios rather than a simple abandonment of the market.
On the Ethereum side, BlackRock's ETHA fund leads the declines with $55.40 million in withdrawals. Fidelity's FETH, for its part, shows a loss of an additional 14.70 million.
Conversely, the Solana ETF remained in positive territory with a modest net inflow of $2.06 million. XRP ETFs also closed slightly in the green.
After months of euphoria around Bitcoin and Ethereum ETFs, institutional investors now seem to be adopting a more cautious posture. It remains to be seen whether this wave of withdrawals represents simple profit-taking or the start of a deeper phase of correction for the crypto market.
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