According to Matt Hougan, citing data from FarsideUK, US spot Bitcoin ETFs attracted $5.86 billion in inflows while Ethereum spot ETFs saw $564 million in May 2025. This significant surge in institutional investment signals strong bullish sentiment for both BTC and ETH, reinforcing their positions as leading crypto assets and potentially driving further price appreciation. Traders should note the ongoing momentum in ETF products as they remain major liquidity channels and market drivers. (Source: Matt Hougan on Twitter, June 2, 2025; FarsideUK)