Why Cruise Line Stocks Jumped on Monday Investors are getting bullish on the business again. What happened Shares of cruise line stocks had a great start to the week, with the industry climbing by the high single digits in trading on Monday. Shares of Carnival (NYSE:CCL) (NYSE:CUK) were up as much as 7.7%, Royal Caribbean (NYSE:RCL) was up 5%, and Norwegian Cruise Line Holdings (NYSE:NCLH) rose 4.8% at its peak. At the close of trading, the stocks were up 3.9%, 1.9%, and 0.8%, respectively. The jump in shares was impressive given that the market overall was flat and the biggest...