My former boss once said: A trader should be able to tell at a glance whether a stock is worth trading. If you can't make a judgment after 30 seconds, there are usually only two reasons: 1. Your fundamentals are lacking; you don't understand it, you're too inexperienced. 2. The market structure is indeed unsuitable, so just skip it. Ultimately, stock selection isn't about analysis, but about identifying "whether it has trading value." Go for it if it's worthwhile, discard the uncertain ones as quickly as possible.