Bitcoin ETFs Pull In Nearly $1B In Biggest Inflow Day Of 2026

Crypto Insight Summary: TL;DR US spot Bitcoin ETFs recorded $998.96 million in net inflows for the September 21 session. BlackRock IBIT led with $381.4 million, followed by ARKB at $289.1 million and FBTC at $238.8 million. The figure is a single-day flow total, not cumulative ETF inflows. US spot Bitcoin ETFs came within a rounding error of a […] Crypto Insight Analysis: Direction: Bullish BTC Impact: Major Impact Horizon: Short-term (1-3 days) Reasoning: Significant ETF inflows signal strong institutional demand for Bitcoin.