It’s earnings season, and that means every day there are stocks gapping up or down following their quarterly reports and conference calls. Most days, at least one of our recommendations in one of our various newsletters is gapping up or down from the opening bell. In almost every case, the company we’re following will have met or exceeded the official analyst’s estimates for sales and earnings. And the forecast is usually pretty good, too. Yet despite this “good” news, the stock can often tumble a few percent, and in a few cases, fall much more, breaking through key support....