Mailing the story:

A spate of favorable research notes and rumors of a big customer win pushed shares of Red Hat (RHAT:Nasdaq - commentary - research - Cramer's Take) up more than 5% Tuesday. Volume was heavy. Prudential analyst Brent Thill raised his target price by $4 to $21, saying he expects second-quarter revenue to reach the high end of the company's guided range while operating cash flow should increase by 20% to 33% and deferred revenue by 73%. Prudential does not have an investment banking relationship with Red Hat.