SMCI surges 21%, Dell jumps 10% as AI server stocks lead the close
As seen on the 24/7 Wall St. homepage on July 22, 2026.
Super Micro Computer rocketed 20.88% at the close as data center infrastructure stocks dominated, with Dell gaining 9.67% on the same wave of demand for AI servers and networking gear.
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Super Micro Computer closed at $30.83, up 20.88%, while Dell Technologies rose 9.67% to $443.25, making data center infrastructure the clear story of the session. The shared catalyst was a wave of demand for AI servers and networking gear that lifted both names simultaneously, signaling broad investor conviction in the buildout trade rather than a single-stock event.
Among the other gainers, Astera Labs added 3.62% to $331.38 and Cipher Mining climbed 4.46% to $23.91, rounding out a session that rewarded hardware and compute-adjacent names. AMC Entertainment also edged up 3.64% to $2.28, though its move appeared disconnected from the infrastructure theme.
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The session's notable losers included Vertex, which fell 9.93% to $11.06, and Digital Turbine, down 8.22% to $8.43. Samsara slid 7.58% to $33.34, Lemonade dropped 7.53% to $63.45, and Applied Optoelectronics gave back 7.29% to close at $110.57, a reminder that the day's enthusiasm was concentrated rather than market-wide.