Your question is too general. Fundamental analysis is used to predict the market direction, and technical analysis is used to choose the opportunity to enter the market. Any stock can be profitable as long as it is properly analyzed and the timing is accurate. These methods of value investment are all wrong. From the point of view that you say the value is not worth it (I think it is a value investment), you need to have a thorough understanding of an industry. Through research, it is found that some companies have potential value or possible future development prospects, and they choose to invest in their stocks regardless of the short-term fluctuation of their stock prices. In this way, the above two analysis methods are almost useless. In view of the recent global economic situation, the domestic stock market is in a downturn (technically, it has not been able to effectively get rid of the downward trend line). At present, many stocks are only suitable for speculative short-term operations, and their profits and losses are disproportionate. It is not recommended to enter the market at this time.