Editorial companion

What stands out

AMD closed as one of the Standard & Poor's 500 (S&P 500) biggest winners, hitting fresh records and drawing upward price targets, while SanDisk jumped after Bernstein raised its target and Oppenheimer downgraded major U.S. banks. Those three headlines, a tech rally, a storage pop and a financials haircut, look like separate market dramas, but together they show how much daily moves still hinge on analyst notes and headlines. Traders will trade the sound bites; investors should note how thin the evidence often is beneath those moves.