Institutional demand for crypto exchange-traded funds is spreading beyond Bitcoin, with U.S. spot Bitcoin ETFs attracting about $217 million on Aug. 31 after a roughly $202 million outflow in the previous session. BlackRock’s IBIT contributed approximately $205.9 million. The rebound followed the end of a nine-session inflow streak that had drawn about $3 billion into Bitcoin funds, which Coinpaper described as one of Bitcoin’s strongest institutional-demand periods of 2026. Ethereum’s spot ETFs extended their buying run to 11 consecutive trading days, collecting approximately $1.6 billion and marking their longest positive streak since a 20-day run ended in July 2025. Solana is also gaining ground: the Bitwise Solana Staking ETF, a fund holding SOL while seeking staking rewards, exceeded $1 billion in assets under management on Aug. 28, 10 months after launch, becoming the first U.S. Solana ETF to reach that level. U.S. Solana ETFs had generated roughly $1.30 billion in cumulative net flows through Aug. 28, with BSOL accounting for more than $1 billion. The flows are notable because SOL traded near $102 Tuesday, about 65% below its January 2025 record high. Bitcoin was around $78,000-$79,000 Tuesday, below $80,000 after briefly moving above that threshold during August. Rising Treasury yields and expectations of another Federal Reserve rate increase are weighing on risk assets, making the continued ETF inflows a notable counterpoint. The flows could offer a clearer test in September of whether ETF capital is becoming a broader structural source of digital-asset demand rather than mainly following Bitcoin rallies.