Bitcoin ETFs Post $1B Weekly Outflows as Sentiment Turns Cautious
Spot Bitcoin ETFs recorded $1.0 billion in net outflows over the week ended May 15, 2026, snapping a six-week institutional inflow streak that had brought in $3.4 billion. The reversal marked the largest weekly redemption since January and comes as broader risk sentiment softens across markets.
Flow patterns shifted sharply through the week. Monday opened with a modest $27.29 million inflow, followed by $233.25 million of withdrawals on Tuesday. Wednesday saw the heaviest selling, with $635.23 million exiting in one session. Thursday brought a brief rebound of $131.31 million in inflows, but pressure returned Friday as another $290.42 million left across all 11 spot Bitcoin ETFs. Every product finished the final session in the red, and none posted inflows.
Even after the pullback, the category remains sizeable. Total spot Bitcoin ETF assets stand at $104.29 billion. Since their January 2024 launch, cumulative inflows have reached $58.34 billion. Market participants still broadly expect institutional demand to remain constructive through 2026.
Weekly crypto ETF flows also turned negative for Ethereum, while Solana stood out as the sole bright spot, according to CoinCentral's May 17, 2026 recap: $BTC: $995.5M net outflows; $ETH: $255.2M net outflows; $SOL: +$58.2M net inflows.
Macro conditions contributed to the mood shift. April inflation data showed CPI at 3.8% and PPI near 2022 highs at 6%. Treasury yields climbed to 4.54%, the highest level since mid-2025, and CME FedWatch probabilities rose above 44% for a potential rate hike.
A rotation into equities also drew attention, with AI-linked names such as NVIDIA, Google and Apple pushing toward record highs, while new listings like Cerebras surged more than 70% in debut sessions. Analysts pointed to profit-taking in Bitcoin as another driver: the average realized profit margin reached 17%, the highest since late 2025, a level that has historically coincided with increased selling pressure.
Ethereum ETFs mirrored the risk-off tone. Five consecutive negative sessions pulled $254.46 million from Ether funds, leaving total assets near $12.93 billion and signaling softer institutional appetite.
