I want to write today about something we mention often but never really explain fully: The fact that the company is not the stock. Most people confuse the two—they see a firm with a new product that’s beating earnings estimates and assume it’s a good growth stock. No! It might be a good company, but that doesn’t mean it is (or will be) a good growth stock. The same thing goes in the other direction; just because a firm is losing money or has had troubles in the past doesn’t mean the stock can’t be a leader or at...