Our analysis techniques follow a survival-of-the-fittest approach, where you’re constantly weeding out the weakest contenders. These techniques work best if you start with a large group of candidates, say 10 to 20, instead of just a few. Researching stocks takes time and effort, so eliminate weak contenders as soon as you discover them. That way you can concentrate your research on the strongest candidates. Be ruthless. There is no point in wasting time researching stupid ideas.