Shares of Norwegian Cruise Line (NCLH) are in trouble after the company’s results sparked a sell-off. The stock never got on track after a breakout past a 63.03 buy point. Then on Tuesday, it slid 5% in heavy volume, and traded below the 50-day moving average Wednesday. In short, the stock is acting poorly. Any investor who bought at 63.03 would face a loss of almost 7% by now — basically a sell signal to cut losses short.