Pure Storage Inc (NYSE:PSTG) stock is moving sharply lower today, despite the data storage name reporting generally upbeat second-quarter results, including better-than-anticipated earnings and revenue. Though the company maintained its full-year revenue outlook, it lowered its guidance for subscription-as-aservice (SaaS) related total contact value, while FactSet reported that its operating income guidance came in below expectations. It's also worth noting that sector peer NetApp (NTAP) is plummeting despi ...