Guru Strategy Rating Changes: Chevron Rising, AT&T Falling

Each week, we take a look at which stocks John Reese’s Validea.com Guru Strategy computer models have newfound interest in, and which they have soured on. Here’s a look at some of the stocks John’s strategies have upgraded or downgraded today. Among the big-name movers: AT&T, Chevron, and AstraZeneca.