Norwegian Cruise Line (NYSE:NCLH), a global operator of Norwegian, Oceania, and Regent cruise brands, closed at $24.10, up 12.15% for Tuesday’s session. The stock moved higher after Elliott Investment Management disclosed a stake of more than 10% and launched an activist campaign. Investors are watching for potential changes in governance, leadership, and strategy. Trading volume reached 59.6 million shares, about 219% above its three-month average of 18.7 million shares. Norwegian Cruise Line IPO'd in 2013 ...