【 Top 20 US Stock Turnover: United Continental Airlines outperformed expectations, with its stock price soaring by 17.5% 】 13th ranked United Continental Airlines (UAL) closed up 17.45%, with a transaction volume of $3.158 billion. United Continental Airlines announced stronger than expected first quarter earnings and expressed optimism about the outlook for the second quarter. If there were no grounding of the Boeing MAX 9, the airline would have achieved profitability in the first quarter. Wall Street's response to the company's financial report has been mostly positive. Deutsche Bank, Morgan Stanley, and Citigroup have all reiterated their "buy" ratings.