CoinMeta data: On September 21st, the total net inflow of Bitcoin ETF reached $998.96 million, setting a new high for 2026. Among them, $IBIT had an inflow of $381.37 million, $FBTC had an inflow of $238.84 million, $ARKB had an inflow of $289.12 million, $gbtc had an inflow of $3.34 million, $BTC had an inflow of $3.06 million, and $msbt had an inflow of $6.167 million.