According to Lookonchain, on May 13, 2025, ten Bitcoin ETFs recorded a net outflow of 268 BTC, totaling $27.9 million. Grayscale (GBTC) alone saw outflows of 655 BTC ($68.16 million), reducing its holdings to 188,604 BTC ($19.64 billion). For Ethereum, nine ETFs experienced a combined net outflow of 4,189 ETH ($10.83 million), with Fidelity leading the withdrawals at 3,247 ETH ($8.39 million) and currently holding 400,916 ETH ($1.04 billion). These sustained ETF outflows indicate bearish sentiment and potential short-term price pressure on BTC and ETH, signaling a cautious trading environment for cryptocurrency investors (source: Lookonchain).

According to Lookonchain, on May 7, the net flow for 10 Bitcoin ETFs registered a negative 132 BTC, equivalent to $12.83 million in outflows. Grayscale's GBTC led with an outflow of 181 BTC ($17.6 million), while its holdings now stand at 190,229 BTC ($18.46 billion) (source: Lookonchain/Twitter, May 7, 2025). For Ethereum, nine ETFs reported a net flow of -10,287 ETH, translating to $18.81 million in outflows, with Fidelity accounting for 9,991 ETH ($18.26 million) of that, and current holdings at 413,405 ETH. These significant ETF outflows may exert downward pressure on both BTC and ETH prices in the short term and signal shifting institutional sentiment in the crypto markets.