According to Lookonchain, May 13 data reveals that 10 Bitcoin ETFs experienced a net outflow of 268 BTC (approximately $27.9 million), with Grayscale (GBTC) alone accounting for an outflow of 655 BTC ($68.16 million) and currently holding 188,604 BTC ($19.64 billion). Meanwhile, 9 Ethereum ETFs posted a combined net outflow of 4,189 ETH ($10.83 million), with Fidelity leading the redemptions by withdrawing 3,247 ETH ($8.39 million) but maintaining a position of 400,916 ETH ($1.04 billion). These significant ETF outflows signal potential short-term bearish sentiment and increased volatility for both Bitcoin and Ethereum, prompting traders to closely monitor ETF flows for directional cues. Source: Lookonchain.