According to CoinMeta, over $137 million in funds flowed into the US spot BTC ETF market yesterday. Among them, the largest inflow was into IBIT, with a single-day net inflow of $136 million, followed by BITB with a total of $1.3 million. The spot BTC ETF tracking strategy, which is under development, shows a significant positive correlation between the inflow of funds into ETF and the price of BTC.