Retail investors can participate in block trading, and the threshold for block trading is very high. Generally, institutional investors negotiate with each other, and most of them make agreements between institutional investors. It will be more difficult for retail investors to conduct large-scale transactions. If retail investors want to conduct large-scale transactions, they need to reach an agreement in advance, concentrate their shares in one place, and then send representatives as buyers and sellers to negotiate and sign relevant agreements on the transaction price and stock share of large-scale transactions, which is very difficult to implement.