A split ratio (usually 1:X) is provided when a company announces a stock split. On the execution date, investors who hold 1 share of the company's stock will own X shares of the company's stock, so the total value of the number of shares will increase to X times before the split, and the stock price will become 1/X before the split. This will only affect the current position price and trading volume, but will not affect the current position profit and loss.