Palo Alto Networks upgraded to Overweight at Morgan Stanley As previously reported, Morgan Stanley analyst Keith Weiss upgraded Palo Alto Networks to Overweight from Equal Weight, saying he sees building traction across the company's portfolio of solutions and he views it as one of the best positioned vendors to execute on an integrated security platform story. The analyst, who sees room for Palo Alto's multiple and estimates to move higher, raised his price target on the stock to $185 from $150