According to AiCoin monitoring, a large amount of funds flowed out of the US spot BTC ETF market yesterday, with a net outflow of up to 99.8 million US dollars. Among them, GBTC was the largest outflow, with a daily net outflow of 60.2 million US dollars; Next is BITB, with a total of 44.2 million US dollars. And the grayscale GBTC outflow was 60.2 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