Short-term returns can quickly turn negative for any stock, but this is especially true for one that had been soaring before bad news came to light. That's the tough situation that Lululemon Athletica (LULU 0.86%) shareholders recently faced.The stock had been rallying heading into its fiscal Q4 earnings report on March 21, but fell hard in the immediate wake of that announcement. Shares are now trailing the return of the wider market over the past year after having roughly doubled the S&P 500's 30% gain be ...