The closing price of Shanghai and Shenzhen stock markets is not exactly the transaction price of the last transaction, but a weighted average price, also called the adjusted closing price. The closing price of Shanghai Stock Exchange is the weighted average price of all transactions (including the last transaction) one minute before the last transaction of the securities on that day. If there is no transaction on that day, the previous closing price is the closing price of that day.

How to determine the closing price of Shenzhen stock market? Shenzhen takes the last three minutes of call auction trading, that is, after 2: 57, everyone can quote at will. Finally, the system matches the transactions to generate the closing price. The closing price of Shenzhen Stock Exchange was generated through call auction in the last three minutes. If the closing price of call auction cannot be generated, the closing price is the weighted average price of all transactions (including the last transaction) one minute before the last transaction of the securities on that day. If there is no transaction on that day, the previous closing price is the closing price of that day.