Shares of Norwegian Cruise Line Holdings Ltd. /zigman2/quotes/204183397/composite NCLH -2.34% rose 3% in premarket trades Tuesday, as Truist Securities analyst C. Patrick Scholes upgraded the stock to buy from hold and hiked its price target by $1 to $19 a share. With booking volumes and pricing for luxury lines improving, Norwegian Cruise Line is positioned to benefit because about one third of its business serves this market, Scholes said. Truist reiterated a sell rating on Carnival Corp. /zigman2/quotes/202325446/composite CCL -4.41% and raised its price target by $2 to $10 a share. He reiterated a hold on Royal Caribbean Cruises /zigman2/quotes/208854639/composite RCL -1.89% and cut its price target to $58 a share from $65 a share. Shares of Carnival Corp. are up 0.8% in premarket trades. Royal Caribbean stock is rising 1%.