VMware (VMW -3.2%), Citrix (CTXS -1.7%), and Red Hat (RHT -1.5%). all of whom have made big bets...

|By:, SA News Editor

VMware (VMW -3.2%), Citrix (CTXS -1.7%), and Red Hat (RHT -1.5%). all of whom have made big bets on cloud management software, are closing lower following Rackspace's Q4 miss, which has spawned some growth concerns.  All 3 companies are nominally supporters of the OpenStack cloud infrastructure platform, which Rackspace helped create and strongly supports, though VMware is more focused on its rival vCloud platform and Citrix has its differences as well.