Shares of several U.S. companies surged or fell sharply in midday trading after a fresh wave of earnings preannouncements, contract wins, guidance updates and cost-cutting headlines. Super Micro Computer jumped on stronger-than-expected preliminary profitability, while EQT rallied after better production and an increase to its 2026 sales-volume guidance. The moves were mixed across the market, with Dell and Hewlett Packard Enterprise benefitting from the server maker’s momentum even as other software and industrial names faced margin or earnings disappointments.
Key takeaways
- Super Micro Computer shares surged 25% after preliminary fourth-quarter results showed materially stronger profitability than investors expected, supporting the stock despite revenue landing near the low end of guidance.
- EQT shares rose over 6.6% on stronger-than-expected second-quarter production and a higher 2026 sales-volume outlook, reinforcing expectations for improved operating performance.
- Technology earnings reactions diverged: Dell rose 10% and Hewlett Packard Enterprise gained 5% alongside Super Micro’s peer momentum, while Pegasystems dropped more than 16% after results and adjusted earnings missed consensus.
- Guidance and margin signals drove industrial and rail sentiment: Westinghouse Air Brake Technologies jumped to a 52-week high after raising full-year adjusted earnings and revenue expectations, while other industrial-related names moved on the specifics of profit delivery.
- AI-related workforce actions and contract news stood out: Amazon shares slipped after CNBC confirmed job cuts in its AI group, and Rocket Lab advanced after winning a $266 million U.S. Air Force contract.
What drove the move
Super Micro Computer’s 25% surge set the tone for a broader rebound in server-related names. The company reported preliminary fourth-quarter results with profitability well ahead of expectations, offsetting concerns that revenue came in near the low end of its guidance range. Investors appeared to focus less on top-line softness and more on margin durability and the implication that earnings power may be stabilizing.
EQT, meanwhile, gained more than 6% after reporting stronger-than-expected second-quarter production. The natural gas producer also raised its 2026 sales-volume guidance to 2,375–2,450 billion cubic feet equivalent from 2,275–2,375 bcfe, a change that investors typically interpret as improved supply outlook and better visibility into cash-flow generation.
In other sectors, corporate actions and contract awards shaped individual moves. CNBC reported that Amazon trimmed jobs in its artificial intelligence group, and the stock slid 1%. Rocket Lab climbed 3.5% after winning a $266 million contract from the U.S. Air Force that includes launch of 12 suborbital vehicles, expected to be completed by the end of 2028.
Market reaction across notable earnings and guidance
Server and enterprise IT: Super Micro’s momentum spilled into peers. Dell Technologies rose 10%, and Hewlett Packard Enterprise gained 5%, reflecting investor willingness to reprice parts of the server supply chain after a profitability beat from a key industry name.
Software: Pegasystems fell more than 16% after reporting second-quarter results that fell short of Wall Street expectations. Adjusted earnings were 35 cents per share versus the 43 cents per share FactSet StreetAccount consensus. The downside reaction suggests the market’s focus is shifting toward earnings quality and near-term execution rather than longer-cycle growth narratives.
Insurance: Chubb shares declined by more than 3% even after the company reported that growth in its property and casualty business slowed versus the prior quarter. Chubb attributed the slowdown to underwriting discipline and indicated it expects easing pressure on growth from those practices, a sign that investors may be watching for how quickly underwriting changes translate into re-accelerating premiums.
Industrial equipment and rail: Westinghouse Air Brake Technologies jumped 11% to a new 52-week high after lifting full-year guidance. The company raised its outlook for adjusted earnings to $10.60–$10.90 per share on revenue of $12.3 billion–$12.6 billion, while FactSet consensus was for $10.63 per share on $12.39 billion of revenue. The stock’s move indicates investors rewarded management’s ability to widen expectations rather than just report results.
Energy and power: GE Vernova fell more than 7% despite beating revenue expectations and raising full-year guidance. CEO Scott Strazik said in a press release that the company’s $176 billion backlog will support continued revenue growth and margin expansion. The split between guidance optimism and the stock’s decline suggests investors may have been reacting to details of the margin outlook or the pace of conversion that were not aligned with expectations.
Telecom and exchanges: AT&T rose 2.9% despite mixed results in its second-quarter report, posting adjusted earnings of 65 cents per share compared with the FactSet consensus of 59 cents. CME Group gained 5% after its second-quarter earnings and revenue exceeded expectations and said in a press release that the first half of 2026 will be its best first six months of any year ever, a milestone statement that tends to reinforce revenue momentum assumptions.
Other company-specific drivers
Aviation services: AAR shares fell almost 11% after the company posted fiscal fourth-quarter gross profit margin and adjusted EBITDA margin that did not beat Wall Street estimates, according to FactSet StreetAccount. Management said margin pressure in the parts supply unit was linked to constrained supplies of “used serviceable material,” pointing to supply availability as a short-term constraint.
AI and data centers: The day’s moves reinforced that investors are actively repricing the AI-adjacent infrastructure trade based on profitability signals and demand durability, not just revenue growth. Super Micro’s better-than-expected preliminary margins were enough to lift major peers, even as other tech names moved lower on earnings misses.
What to watch next
Investors will likely focus on whether companies can sustain margin strength and improve guidance credibility as the earnings pipeline progresses. Upcoming catalysts include additional quarterly reports across the server supply chain, any further details on Amazon’s AI workforce reductions, and follow-through from guidance changes at EQT and Westinghouse Air Brake Technologies. With market-moving macro inputs still in play, traders may also watch for rate and economic data that can affect how investors discount future cash flows—especially for companies where guidance hinges on execution and timing.
