In the past five trading days, the spot Bitcoin exchange-traded fund has a net inflow of more than $2.1 billion, of which BlackRock accounted for half of the sales. Samara Cohen, chief investment officer of BlackRock ETFs and indexes, said that one of the strategies to attract customers to invest in its funds is to introduce the benefits of exchange-traded products (ETPs) to cryptocurrency investors. Now most investors are new cryptocurrency enthusiasts. Data shows that 80% of the sellers are direct investors, and among these 80% of direct investors, 75% have never held iShares. In addition, a16z found in its recently released report on the status of cryptocurrencies that more than 40 million Americans hold cryptocurrencies. (CNBC)