According to Lookonchain, May 16 saw a net inflow of 1,894 BTC, totaling $196.39 million, across 10 Bitcoin ETFs. BlackRock's iShares ETF recorded the largest inflow, adding 3,977 BTC valued at $412.24 million, and now holds 631,962 BTC ($65.51 billion). In contrast, 9 Ethereum ETFs experienced a net outflow of 9,246 ETH, equaling $23.93 million, with Fidelity leading the outflows at 12,488 ETH ($32.32 million) and holding 390,676 ETH. These ETF flows indicate sustained institutional demand for Bitcoin, which could support price stability or upward momentum, while continued Ethereum ETF outflows may signal bearish sentiment or profit-taking among large holders (Source: Lookonchain on Twitter, May 16, 2025).