What are the rules for stock changes on the Shanghai Stock Exchange?

If any of the following situations occurs in the main board stock bidding transaction, it is an abnormal fluctuation. The Shanghai Stock Exchange will announce the names of the five member business departments with the largest cumulative buying and selling amounts during the period of abnormal trading fluctuations in the stock, as well as their buying and selling amounts:

1. Daily closing price for 3 consecutive trading days The cumulative deviation value of the increase and decrease reaches ±20.

2. The ratio of the daily average turnover rate for 3 consecutive trading days to the average daily turnover rate for the previous 5 trading days reaches 30 times, and the cumulative turnover rate of the stock for 3 consecutive trading days reaches 20.

3. Other situations identified by the China Securities Regulatory Commission or the Shanghai Stock Exchange as abnormal fluctuations in the main board.

If any of the following situations occurs in the main board stock bidding transaction, it is considered a serious abnormal fluctuation. The Shanghai Stock Exchange will publish investor classified transaction statistics and other information during severe abnormal fluctuations:

1. Stocks with risk warnings 4 times within 10 consecutive trading days for 3 consecutive trading days have accumulated daily closing price increase and decrease deviation values. reaches ±12, or there are 4 consecutive abnormal fluctuations in the same direction in which the daily closing price increase and decrease deviations reach ±20 for 3 consecutive trading days;

2. Daily closing price for 10 consecutive trading days The cumulative deviation value of the increase and decrease reaches 100 (-50);

3. The cumulative deviation value of the daily closing price increase and decrease for 30 consecutive trading days reaches 200 (-70);

4. Other situations deemed by the China Securities Regulatory Commission or the Shanghai Stock Exchange to be serious and abnormal fluctuations in the main board.

If any of the following situations occurs in the stock bidding transactions on the Science and Technology Innovation Board, it is an abnormal fluctuation. The Shanghai Stock Exchange will announce the names of the five member business departments with the largest cumulative buying and selling amounts during the period of abnormal trading fluctuations in the stock, as well as their buying and selling amounts:

1. Daily closing price for 3 consecutive trading days The cumulative deviation value of the increase and decrease reaches ±30;

2. Other situations identified by the China Securities Regulatory Commission or the Shanghai Stock Exchange as abnormal fluctuations on the Science and Technology Innovation Board.

If any of the following situations occurs in the stock bidding transactions on the Science and Technology Innovation Board, it is considered a serious abnormal fluctuation. The Shanghai Stock Exchange will publish investor classification transaction statistics and other information during the period of serious abnormal fluctuations:

1. Abnormal fluctuations in the same direction occurred three times within 10 consecutive trading days, with the cumulative deviation of the daily closing price increase and decrease reaching ±30 for 3 consecutive trading days;

2. The daily closing price increased for 10 consecutive trading days The cumulative deviation value of the decline reaches +100 (-50);

3. The cumulative deviation value of the daily closing price rise and fall within 30 consecutive trading days reaches +200 (-70);

4 , other situations determined by the China Securities Regulatory Commission or the Shanghai Stock Exchange to be serious and abnormal fluctuations in the Science and Technology Innovation Board.