Shares of Norwegian Cruise Line Holdings Ltd (NYSE:NCLH) were last seen up 2.3% at 19.62today,afteranupgradefromJ.P.MorganSecuritiesto"overweight"from"neutral."Thefirmcitedafavorablerisk−rewardsetup,leavingitspricetargetat30. Today's bull note comes after Zacks Research last week raised its second-quarter earnings estimates to 60 cents per share. Of the 23 analysts in coverage, 15 now carry a "buy" or better rating. The 12-month consensus price target of $30 sits at a 54% premium ...