It's no secret that Micron (MU) led trading action to kick off Thursday's session. Diane King Hall talks about the storage chipmaker's strong earnings and forecast that added much-needed muscle to the A.I. trade. After GE Vernova (GEV) got back some of its losses from Wednesday's steep weakness thanks to an upgrade from Jefferies. Diane turns to a laggard in CarMax (KMX), where shares fell despite posting an earnings beat.