US-listed spot Bitcoin exchange-traded funds recorded a sharp run of withdrawals in May, with investors pulling approximately $1.26 billion from the products over five consecutive trading sessions.
Data from Farside Investors shows net outflows across the funds from May 18 to May 22, 2026, extending a period of weaker sentiment around Bitcoin after the cryptocurrency failed to maintain its recent highs. pite the negative flow data, market analytics firm Santiment has taken a less pessimistic view. The company argues that sustained ETF withdrawals may reflect weakening short-term confidence among investors rather than a clear sign of long-term market deterioration.
Five-Day Bitcoin ETF Outflow Streak Reaches $1.26 Billion
The latest withdrawals began with a particularly large exit on May 18, when spot Bitcoin ETFs posted net outflows of $648.6 million. A further $331.1 million left the funds on May 19, followed by $70.5 million on May 20, $100.9 million on May 21 and $105.2 million on May 22. Together, the five sessions resulted in approximately $1.26 billion in net outflows.
| Date | Net Bitcoin ETF Flow |
|---|---|
| May 18, 2026 | -$648.6 million |
| May 19, 2026 | -$331.1 million |
| May 20, 2026 | -$70.5 million |
| May 21, 2026 | -$100.9 million |
| May 22, 2026 | -$105.2 million |
| Total | -$1.26 billion |
The wider withdrawal streak actually began on May 15, when funds lost another $290.4 million. Including that session, spot Bitcoin ETFs recorded approximately $1.55 billion in net outflows across six consecutive trading days. Santiment Says Withdrawals May Reflect Investor Frustration
While large ETF outflows are often viewed as a bearish signal, Santiment believes the current trend may tell a more complicated story. The analytics firm said periods of sustained withdrawals have previously appeared during phases when patient investors were able to build positions, rather than during moments that required panic selling.
According to Santiment’s interpretation, ETF activity can be strongly influenced by changes in investor confidence after Bitcoin struggles to break or hold important price levels. Bitcoin was trading at $75,410 when the firm published its report, after reaching a May high of $79,052 on May 16. s means the latest outflows may reflect disappointment among investors who expected Bitcoin to move above the $80,000 level, rather than a complete change in the asset’s longer-term outlook.
BlackRock and Fidelity Funds Face Withdrawals
The Farside data shows that several major Bitcoin ETFs were affected during the recent outflow period. BlackRock’s iShares Bitcoin Trust, known as IBIT, recorded significant withdrawals across several sessions, including a loss of $448.4 million on May 18 and $325.6 million on May 19.
Fidelity’s Wise Origin Bitcoin Fund, known as FBTC, also registered withdrawals during the streak, while other funds showed smaller outflows or limited activity. The figures highlight that the selling pressure was spread across some of the largest regulated Bitcoin investment products in the US market. ETF Withdrawals Continue a Mixed Year for Bitcoin Funds
The recent outflows follow an uneven period for spot Bitcoin ETFs in 2026. Earlier in May, the funds had recorded renewed inflows, including $532.3 million on May 4 and $467.3 million on May 5. However, that positive momentum weakened later in the month as Bitcoin struggled to maintain upward movement.
On May 13 alone, the products lost $630.4 million, before briefly returning to positive territory with $131.3 million in inflows on May 14. The latest withdrawal streak then began the following session. pattern suggests that ETF investors remain highly sensitive to Bitcoin price moves and broader market confidence.
Possible Buying Opportunity Comes With Risk
Santiment’s view that ETF outflows may offer a contrarian accumulation opportunity does not guarantee that Bitcoin prices will recover immediately. The analytics firm warned that the market would need to be reassessed if Bitcoin falls below the $74,000 level. A deeper decline could suggest that selling pressure is becoming more serious, rather than simply reflecting short-term investor frustration. investors, the outflow data therefore presents a mixed picture. It shows clear pressure on Bitcoin ETFs, but also raises the possibility that some longer-term market participants may view weaker sentiment as a chance to accumulate.
Bitcoin Market Watches ETF Sentiment Closely
Spot Bitcoin ETFs have become an important indicator of regulated demand for the cryptocurrency, making their daily flow data closely watched by traders and analysts. The latest figures show that confidence weakened sharply in the second half of May, with more than $1.26 billion leaving funds over five trading days.
Whether that trend becomes a warning sign or a buying opportunity will depend largely on Bitcoin’s next price moves, investor confidence and whether ETF flows begin to stabilise after the recent sell-off.