The stock market has been changing. Stock investors, especially short-term investors, must observe and analyze the changes in the stock market if they want to grasp the trend of the stock market, that is, they must learn to watch the market. Staring at the stock market, we should mainly focus on the judgment of the future trend of stock indexes and individual stocks. The judgment of the market is generally considered from the following three aspects: 1. Judgment of stock index and individual stock selection (observing whether the stock index is consistent with most individual stocks): 2. The hidden information behind the disk stock index (weakening or strengthening); Third, grasp the market rhythm, sell high and suck low, and reduce the cost of holding positions (this is particularly important). This paper mainly discusses the judgment of individual stocks. Generally speaking, market-making needs to pay attention to opening, closing, intraday trend, pending order price, pending order quantity, transaction price, transaction quantity and trading time, but