BTC, ETH ETFs record largest inflow day since October 2025

Crypto Insight Summary: US spot Bitcoin and Ethereum ETFs had their biggest day since October 2025 as each product recorded $998.95 million and $269.98 million, respectively on the same day, Monday, September 21. The inflow stats at the end of the day closed the biggest single-day haul for BTC ETFs since October 6, 2025, and ETH ETFs since... Crypto Insight Analysis: Direction: Bullish BTC / Bullish ETH Impact: Major Impact Horizon: Short-term (1-3 days) Reasoning: Record ETF inflows signal strong institutional demand, boosting immediate market sentiment.