Rackspace rallies; UBS speculates H-P could be interested

• Rackspace (RAX +3.9%) could receive a ~$45/share bid from H-P, UBS speculates in a morning note. Shares have rallied in response.
• Last month, TechCrunch reported hearing of an H-P bid for Rackspace, but later backtracked a bit. The following week, re/code stated multiple sources had "categorically denied" the H-P report.
• Shares are up 20% from their Aug. 12 post-earnings lows, aided by Dan Loeb and Blue Harbour Group's disclosures.