According to TechFlow, Matrixport published a post stating that data from multiple Bitcoin ETF issuers showed that institutional investors, including asset management companies, investment advisors, pension funds, and sovereign wealth funds, are buying Bitcoin spot ETFs. However, since mid-March, capital inflows have been almost zero, and there has been an outflow of $1.2 billion in the past ten days. The entry of institutional investors may be slower than expected.