Norwegian Cruise Line shares rise 40% on U.S.-Iran peace hopes, boosted by lower energy costs and strong revenue growth.

Carnival shares drop 6% despite earnings beat, weighed down by weak guidance and rising costs

Carnival's stock fell 6% after reporting record revenue and an earnings beat, but investors focused on its weaker-than-expected next quarter guidance and rising fuel costs. In contrast, Royal Caribbean shares dipped only 1%, supported by strong profi...