Today, Green Mountain is trading well above $100.
Of course, these stocks have more in common than just the look of their charts. All of these companies were left for dead, and shareholders who felt abject fear fled as quickly as possible.
"In all of these stocks, people literally capitulated," Worth told CNBC.com on Monday. "They said 'Sell at any price.' The commonality is not the big move off of a low—it is that there was a low, and that it came as a result of capitulatory-type selling that led to a long, persistent, unrelenting downtrend."
Worth does not recommend stocks that are simply beaten-down, such as Weight Watchers. But the doubling, and the flattening, of the moving average indicates that the selling has ended and the fundamentals have turned around.
"By the time you've doubled, enough time has healed that smoothing mechanism," Worth said. "That means you've gone two to three quarter without any ... new bad news, so presumptively you've started to work through your problems."
Worth says BlackBerry looks a lot like these other stocks did when they finally became safe to buy.