According to Farside Investors, Grayscale's Ethereum Trust ETF (ETHE) recorded a significant daily net outflow of $16.6 million on May 15, 2025. Such a large withdrawal signals declining investor demand for Ethereum exposure through traditional financial vehicles, which could increase short-term selling pressure on ETH spot prices. Traders should monitor these ETF flows closely, as sustained outflows often precede price volatility and can signal broader shifts in institutional sentiment towards Ethereum and the overall crypto market (source: Farside Investors via Twitter).