Q: On Fast Money's Trader Radar we look at the stock that was lighting up screens across Wall Street today. As the first official media spokesperson Kathy Lee Gifford can tell you, this company is the world's largest provider of vacations by way of the high seas. But the stock has been a sinking ship in 2008 with rising fuel costs sending it down more than 10%. Who is it?

A: Carnival Cruise Lines is on the Trader Radar tonight! Shares of this cruise ship operator traded almost twice its daily volume Thursday.