Bitcoin ETF Outflows Hit $648M: Worst Day Since January

Bloodbath on Wall Street: Bitcoin ETFs Suffer Worst Day in Months

U.S. spot Bitcoin ETFs recorded a staggering $648.64 million in net outflows on Monday, May 18, 2026, marking the worst single-day exodus since January 29 and the fifth-worst trading day since the funds launched in January 2024. The massive capital flight sent Bitcoin (BTC) tumbling from $77,700 to $76,000 in a matter of hours, its lowest level since April 30. The selloff underscores a sharp deterioration in institutional sentiment toward the leading cryptocurrency, driven by rising Treasury yields, geopolitical tensions, and a broader risk-off mood across financial markets.

What Happened to Bitcoin ETFs on May 18?

Data from SoSoValue shows that all twelve U.S. spot Bitcoin ETFs posted net outflows on Monday, with not a single fund recording positive inflows. The heaviest redemptions came from BlackRock's iShares Bitcoin Trust (IBIT), which lost $448.36 million — roughly 69% of the total daily outflow. Ark & 21Shares' ARKB followed with $109.64 million in withdrawals, while Fidelity's FBTC shed $63.42 million. Grayscale's GBTC and other smaller funds accounted for the remainder.

Despite the heavy selling, trading volume surged to $3.14 billion, indicating aggressive portfolio rebalancing by institutional investors rather than panic-driven retail exit. Total net assets across all Bitcoin ETFs fell to $100.49 billion, down from over $102 billion earlier in the month.

BlackRock's IBIT Bleeds $448M

BlackRock's IBIT, the largest and most liquid Bitcoin ETF with over $65 billion in cumulative net inflows since its launch, saw its worst daily outflow since February 25, 2025 — the all-time record day when $1.1 billion exited the entire complex. The $448 million withdrawal from IBIT alone signals that even the most committed institutional holders are de-risking. Analysts at 10x Research noted that over $1 billion has exited Bitcoin ETFs since the hotter-than-expected CPI report released the prior week, leading the firm to declare that 'the inflation trade is back.'

Why Are Bitcoin ETFs Bleeding?

The outflows are the result of a confluence of macroeconomic and geopolitical headwinds:

• Rising Treasury yields: The 10-year U.S. Treasury yield climbed above 4.5%, pulling capital away from risk assets like Bitcoin toward fixed income.
• Inflation fears: The April CPI report came in above expectations, reinforcing the Federal Reserve's hawkish stance and reducing hopes for rate cuts in 2026.
• Geopolitical risk: The ongoing conflict between the United States and Iran continues to weigh on investor sentiment. President Trump's recent warnings to Tehran have kept markets on edge, with no peace deal in sight.
• Profit-taking after a historic rally: Bitcoin had surged from $63,000 in March to nearly $82,000 in early May, driven by strong ETF inflows and institutional accumulation. The selloff represents profit-taking by investors locking in gains.

Despite the outflows, year-to-date net inflows into Bitcoin ETFs still exceed $65 billion, meaning Monday's exodus represents less than 1% of cumulative flows. Some analysts view this as a healthy correction rather than a structural crisis. The Bitcoin ETF market structure remains robust, with deep liquidity and a diverse investor base.

Ethereum ETFs Also Hit Hard

Spot Ethereum ETFs extended their losing streak to six consecutive sessions, posting $86.31 million in net outflows on Monday. BlackRock's ETHA led the redemptions with $55.4 million exiting the fund. Over the past week, Ethereum ETFs have lost a combined $255 million, reflecting similar institutional de-risking. The price of Ether dropped alongside Bitcoin, trading near $2,850, down from recent highs above $3,100.

Solana and XRP ETFs Buck the Trend

In a notable divergence, Solana (SOL) and XRP ETFs attracted modest inflows on Monday. Solana ETFs saw $2.06 million in net inflows, while XRP ETFs recorded $750,440 in positive flows. Both funds posted their best week since December 2025, with Solana attracting $8.12 million and XRP pulling in $60.5 million over the previous five trading days. This suggests that institutional investors are selectively rotating into smaller, higher-growth digital assets even as they reduce exposure to Bitcoin and Ethereum.

Bitcoin Price Analysis: Key Support Levels

Bitcoin's price dropped to $76,000 on Monday, its lowest level since April 30. The selloff accelerated after the CLARITY Act advanced to a Senate vote — a paradoxically positive regulatory development that triggered a 'sell the news' event. The 200-day exponential moving average (EMA) rejected Bitcoin's price multiple times, while the 100-day and 50-day EMAs are now providing temporary support.

Key levels to watch:

• Immediate support: $76,000-$76,700 — if broken, a test of $74,000 is likely.
• Major support: $72,000-$74,000 — the next significant demand zone.
• Resistance: $78,500, then $80,000-$82,000 — a reclaim of $82,000 would signal recovery.

The Crypto Fear & Greed Index has fallen to 27 (Fear territory), down from 87% bullish sentiment just weeks ago. Over $800 million in liquidations occurred across the broader crypto market on Monday alone.

Analysts remain divided on the near-term outlook. Some see the outflows reversing quickly if macroeconomic conditions stabilize, potentially driving Bitcoin back toward $82,000-$85,000. Others warn that persistent outflows could test the $69,000-$72,000 range. The Bitcoin price analysis 2026 suggests that the $76,000 level is critical for short-term momentum.

Impact and Outlook

The May 18 outflow is a stark reminder that institutional flows are a double-edged sword. While ETF inflows propelled Bitcoin to new highs earlier in 2026, outflows can amplify downside moves. The key question is whether this is a temporary pullback or the beginning of a deeper correction.

Factors that could reverse the trend include: a ceasefire or diplomatic resolution in the US-Iran conflict, dovish signals from the Federal Reserve, or renewed positive regulatory momentum. The crypto ETF regulatory landscape remains in flux, with the CLARITY Act and other legislative developments potentially providing catalysts.

On the positive side, long-term holder conviction remains strong. On-chain data shows that long-term holders control a record 15.26 million BTC, and exchange balances sit at six-year lows, indicating that supply is being taken off the market. Strategy Inc. (formerly MicroStrategy) now holds over $67 billion in Bitcoin, further anchoring the market.

Frequently Asked Questions

What caused the Bitcoin ETF outflows on May 18, 2026?

The outflows were triggered by a combination of rising Treasury yields, hotter-than-expected CPI data, geopolitical tensions between the US and Iran, and profit-taking after Bitcoin's rally from $63,000 to $82,000. No single Bitcoin ETF posted positive inflows on the day.

How much did BlackRock's IBIT lose?

BlackRock's iShares Bitcoin Trust (IBIT) lost $448.36 million on May 18, accounting for about 69% of total Bitcoin ETF outflows. It was the fund's worst day since February 25, 2025.

Is this the worst day ever for Bitcoin ETFs?

No. The worst day remains February 25, 2025, when $1.1 billion exited Bitcoin ETFs. The May 18 outflow is the fifth-worst day since the funds launched in January 2024.

Did any crypto ETFs see inflows?

Yes. Solana ETFs saw $2.06 million in net inflows, and XRP ETFs recorded $750,440 in positive flows on May 18. Both funds have been attracting capital even as Bitcoin and Ethereum ETFs bleed.

What is the outlook for Bitcoin prices?

Bitcoin is testing support near $76,000-$76,700. If outflows reverse quickly, a recovery toward $82,000-$85,000 is possible. If outflows persist, a deeper correction toward $69,000-$72,000 could occur. Key factors include US-Iran tensions, Fed policy, and regulatory developments.

Sources

• SoSoValue ETF flow data (SoSoValue)
• Newsbit.nl original report (Newsbit)
• Bitcoin.com News (Bitcoin.com)
• CoinFomania (CoinFomania)
• Stocktwits (Stocktwits)