According to AiCoin monitoring, over the past four trading days, funds from the US spot BTC ETF have continued to flow out, reaching $1.337 billion. During this period, the largest outflow was from IBIT, with a total of 715 million US dollars; Next is ARKB, with an inflow of $229 million. 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