Maybe it's different. Because, every trading day from 9: 0015 to 9: 25 am is call auction time, the daily opening price is determined by call auction, the range of call auction can only be determined within 10% or 5% of the previous closing price, and the price with the largest number of transactions is the opening price. Therefore, the last closing price and the next opening price will not be the same price. Only when there is no customer bid or the collective price happens to be the final closing price, the final closing price and the next opening price will be the same price.