According to @FarsideUK, the Invesco US spot Bitcoin ETF (BTCO) registered a daily flow of $35.3 million on Sep 30, 2025 (source: Farside Investors tweet on Sep 30, 2025; farside.co.uk/btc). Farside Investors adds that full Bitcoin ETF Daily Flow data and disclaimers are available at farside.co.uk/btc, which aggregates daily net flows for US spot Bitcoin ETFs (source: farside.co.uk/btc).