• Virgin America Inc’s (VA) shares jumped 41.7% after announcing that the company will be acquired by Alaska Air Group, Inc. (ALK) for $4 billion or $57 per share in cash • Shares of Natus Medical Inc. (BABY) slumped 19.7% after forecasting fiscal first quarter revenue of $87.5 million, lower than its previous outlook of $91.5 million to $92.5 million • PulteGroup, Inc’s (PHM) shares fell 6.6% following news that the company’s Chairman and CEO Richard J. Dugas Jr. will retire next year • Shares of Yahoo! Inc. (YHOO) increased 1.5% on news that Time Inc. (TIME) may hold discussions with SoftBank (SFTBF) in order to acquire Yahoo’s internet assets Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report VIRGIN AMERICA (VA): Free Stock Analysis Report ALASKA AIR GRP (ALK): Free Stock Analysis Report NATUS MEDICAL (BABY): Free Stock Analysis Report PULTE GROUP ONC (PHM): Free Stock Analysis Report YAHOO! INC (YHOO): Free Stock Analysis Report TIME INC (TIME): Free Stock Analysis Report To read this article on Zacks.com click here.