Super Micro Computer (SMCI) Leads Session Gainers With a 13.4% Jump at Open
As seen on the 24/7 Wall St. homepage on October 21, 2026.
Super Micro Computer opened up 13.4%, the biggest move across a 387-name priority list, with Dell, Vertiv and Bloom Energy also clearing 5%. Netflix and AT&T anchor the other end, each off roughly 4.8%.
Continue ReadingShow less
Super Micro Computer's 13.4% jump at the open on October 21, 2026 was the largest move across a 387-name priority list, pulling attention onto the broader server and data-infrastructure trade.
Dell Technologies, Vertiv, and Bloom Energy all cleared the 5% threshold in the same session, making this broader than a single-name story.
SpaceX rose 8.5% at the open, the second-largest mover on the list after Super Micro.
Netflix, AT&T, Intuitive Surgical, Moody's, and T-Mobile all opened lower, rounding out the session's notable decliners.
Gainers clustered in infrastructure and energy while losers spread across media, telecom, and financial services, a rotation worth tracking to see whether the gains hold as the session progresses.