Carnival shares plunge the most in 2 years after slashing full-year forecast

Shares were down as much as 10 percent after the cruise line cut their full-year earnings outlook to a range between $4.15 and $4.25 from a range between $4.20 and $4.40 earnings. Other cruise line stocks felt pressure after Carnival's earnings report as well, with shares of Norwegian Cruise Line and Royal Caribbean Cruises also dropping. Carnival CCL shares dropped Monday after the company cut its full-year guidance, citing increased fuel costs and unfavorable currency exchange rates.