According to AiCoin monitoring, a large amount of funds flooded into the US spot BTC ETF market yesterday, with a net inflow of up to 430 million US dollars. Among them, IBIT was the largest inflow, with a daily net inflow of 199 million US dollars; Next is ARKB, with a total of 106 million US dollars. According to the "Spot BTC ETF Tracking" real-time trading strategy developed by AiCoin, there is a significant positive correlation between the inflow of ETF funds and BTC prices. Subscription indicators can be used to automatically place orders based on the flow of funds in the program. Data for reference only