Spot Bitcoin ETFs Record $1B in Weekly Outflow as Momentum Breaks

Spot Bitcoin ($BTC) exchange-traded funds (ETFs) went through a notable reversal over the past week. In this respect, from May 11 to May 15, a huge $1.039B left the spot $BTC sector. As per the data from SoSoValue, this denotes a noteworthy shift in sentiment while institutional investors are reassessing their exposure amid increased volatility. The downtrend takes place at a time when Bitcoin ($BTC) is trading around $79,146.50.

Spot Bitcoin ETFs See $1.039B Weekly Net Outflow, Ending Six-Week Inflow Streak

From May 11 to May 15 (ET), spot Bitcoin ETFs recorded a net outflow of $1.039 billion, ending six consecutive weeks of net inflows. Spot Ethereum ETFs saw a net outflow of $255 million. Spot SOL… pic.twitter.com/NjXB4h9nAe

— Wu Blockchain (@WuBlockchain) May 18, 2026

Bitcoin Spot ETFs Experience $1.03B in Latest Weekly Outflows

In line with the market data, the spot Bitcoin ($BTC) landscape has incurred a staggering $1.039B outflow over the week. This underscores an end to the notable 6-week inflow streak. At the same time, the development also underscores the reassessment of investor exposure and risk while the market volatility is surging consistently. 

At the moment, the flagship cryptocurrency is hovering around $79,146.50, with cumulative net assets across exchange-traded funds (ETFs) standing at $104.29B. Apart from that, the wider crypto ETF sector is showing mixed performance. Specifically, over the past week, the spot Ethereum ($ETH) ETFs saw $255M in total inflows.

Altcoin ETFs Circumvent Risk-Off Sentiment as $SOL Attracts $60M

According to SoSoValue, this step has increased apprehensions regarding sustained demand. On the other hand, $SOL ETFs registered $60.50M in total inflows.  This suggests partial investor appetite irrespective of the wider risk-off setting. The respective divergent flows underscore the shifting trading strategies, while capital is rotating into particular altcoins.

Bitcoin’s ($BTC) latest weekly outflows of almost $1.039B in the spot ETF market signify a stunning pullback and risk-off sentiment. Contrarily, some chosen altcoins are seeing inflows. Overall, this interplay positions ETF flows as a crucial element driving the short-term investor sentiment.