Analyst SIG believes the major US cruise lines will soon shrug off the effects of hurricane Irma and Harvey on their operations.

It is continuing to recommend buying the shares of Carnival, Royal Caribbean (RCCL) and NCL.

Hurricanes are one-time events, with Harvey being the first major hurricane (category 3+) to make landfall since Wilma in 2005," it said.

"They are beyond management’s control, and their effects don’t recur or last much beyond the actual event."