Spot Bitcoin ETFs recorded $730.8 million in net inflows on Sept. 3, 2026, their strongest single-day intake since Jan. 14. BlackRock’s IBIT accounted for about $454 million, followed by ARK 21Shares’ ARKB with about $137.7 million and Fidelity’s FBTC with $74.4 million. Despite a $236.5 million outflow on Sept. 1, four-day net inflows through Sept. 4 reached approximately $770 million. The surge came as markets responded to dovish comments from Federal Reserve Governor Christopher Waller, while technical indicators including the RSI (relative strength index) and Bollinger Bands (volatility-tracking price bands) pointed to bullish sentiment alongside elevated volatility. Bitcoin was trading at $79,622.23 after falling 2.1% in 24 hours, leaving $80,000 as a key level to establish as support. Ethereum ETFs also saw strong buying on Sept. 3, attracting $141.4 million, while Hashdex’s NCIQ ETF added HYPE with a 3.4% allocation worth about $14.7 million.