N means this stock was newly listed that day. When you see an N-prefix stock, you should not only know that it is a new stock, but also realize that the share price of this stock is not limited by the fluctuation of the market price that day. XD indicates that today is the ex-dividend date of this stock. On the ex-dividend date, the benchmark price of the stock price is lower than the closing price of the previous trading day, because the interest difference is deducted from it. XR indicates that today is the ex-dividend date of this stock. The ex-dividend stock price is also lower than the closing price of the previous trading day, because the expansion of the number of shares dilutes the stock price. DR indicates that today is the ex-dividend date and ex-dividend date of this stock. Some listed companies not only pay dividends, but also send bonus shares or allotment, so there is a phenomenon of ex-dividend and ex-dividend at the same time.