UPDATE: 🇺🇸 US spot BTC ETF flows (Mon, Sep 21, 2026): +$999.0m A massive start to the week for spot Bitcoin ETFs. Monday delivered just under +$1B in net inflows, with broad demand across the major funds after Friday’s strong close. One of the biggest single-day inflow sessions we’ve tracked recently.

English Summary

UPDATE: 🇺🇸 US spot BTC ETF flows (Mon, Sep 21, 2026): +$999.0m A massive start to the week for spot Bitcoin ETFs. Monday delivered just under +$1B in net inflow

Chinese Summary

UPDATE: 🇺🇸 US spot BTC ETF flows (Mon, Sep 21, 2026): +$999.0m A massive start to the week for spot Bitcoin ETFs. Monday delivered just under +$1B in net inflow