Due to the split share structure reform and other reasons, some original legal person shares were converted into tradable shares. But this part of the converted tradable shares cannot be traded immediately. It will take a period of time, such as 36 months or 60 months, and this period is "restricted sale". After the period, it can be traded like ordinary tradable shares, which is "lifting the ban".

The lifting of the ban on restricted shares has a great impact on the stock market. This is the size we often hear.

For various reasons, the holding cost of the holders of restricted shares is very low, generally 1-2 yuan/share or lower, or even zero cost. Therefore, at any time, his stock is profitable. It is for this reason that once the ban on restricted shares expires, his willingness to sell shares is very strong.