Rackspace Hosting, Inc. Kills Merger Plan, Stock Tumbles By: Benzinga via Benzinga September 16, 2014 at 16:53 PM EDT Rackspace Hosting, Inc. (NYSE: RAX) tumbled in extended trading Tuesday after the company said it will remain independent despite ... Read More >> Related Stocks: Amazon.com CenturyLink Google, Inc. Hewlett-Packard International Business Machines Macy's