Infoblox ( BLOX ) stock rose Friday to just shy of a new all-time high, as the network communications appliance maker received a target price hike the day after getting an upgrade from another analyst. Pacific Crest Securities analyst Brent Bracelin on Friday raised his price target on the stock to $52 from $40. He said new security products and integration with VMware ( VMW ) and FireEye ( FEYE ) could boost adoption of the company's network automation tools. On Thursday, Infoblox was upgraded to buy from neutral by analyst Alex Kurtz at Sterne Agee, who set a price target of $47. Infoblox stock rose nearly 7.9%, to 44.47, in the stock market. "Infoblox's market opportunity is large and only 6% penetrated," Bracelin wrote.