Stock futures were mixed early Tuesday, after Monday’s broad rally sparked by the U.S. capture of Venezuela’s Nicolás Maduro and President Donald Trump’s push for American energy firms to tap the nation’s vast oil reserves, setting the stage for potential crude supply normalization.
Here are some of Tuesday’s biggest stock movers:
Biggest stock gainers
- Zeta Global (ZETA) +10% – Shares surged after the company announced a strategic collaboration with OpenAI to power the conversational intelligence and agentic applications behind Athena by Zeta, its superintelligent agent built for enterprise marketing. OpenAI models will support Athena’s next phase of development, enabling more intuitive, answer-driven experiences for marketers, while aligning Athena’s product roadmap with advances in OpenAI’s AI models. Zeta also expanded beta access to Athena amid strong enterprise demand and said it will gain early access to new OpenAI models and features, allowing deeper AI integration. Athena currently includes two agentic applications, Insights, a conversational analytics tool, and Advisor, a goal-driven optimization app. It is expected to roll out to all customers by the end of Q1 2026.
- Microchip Technology (MCHP) +4% – Shares advanced after the company said FQ3 revenue is expected to come in “well above” prior guidance, at around $1.185B, compared with its earlier forecast range of $1.109B–$1.149B. The upside reflects a broad-based recovery across most end markets, driven by progress in inventory correction at distributors and direct customers, alongside new customer designs moving into production. CEO Steve Sanghi said bookings were strong in the December quarter despite holiday-related seasonality, while the March-quarter backlog is starting from a much stronger position than the prior quarter. He added that Microchip has made substantial progress on its nine-point recovery plan, including reducing internal inventory, which should lower future write-offs, and preparing to ramp up factories in the March quarter to ease under-utilization charges.
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CoreWeave (CRWV) +2% – Shares rose after the company announced it would integrate NVIDIA’s (NVDA) Rubin technology into its AI cloud platform, becoming one of the first cloud providers to deploy Rubin in the second half of 2026. The move expands CoreWeave’s solutions, allowing customers to better match AI systems to workloads while boosting performance, efficiency, and scalability. CEO Michael Intrator said the NVIDIA Rubin platform is a key advancement as AI evolves toward more sophisticated reasoning and agentic applications.
Biggest stock losers
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Datavault AI (DVLT) -10% – Shares plunged after the company disclosed an 8-K outlining a new services agreement alongside equity issuance tied to intellectual property. While Datavault entered into a 12-month Master Purchase Order with Available Infrastructure requiring a $250K upfront payment to deploy infrastructure and cybersecurity services across 100 U.S. cities, investor focus centered on dilution concerns after the company said it will issue 7.5M shares under its existing S-3 shelf to acquire IP rights. The share issuance also prompted Datavault to reduce the remaining capacity under its equity distribution agreement, adding near-term pressure to the stock despite the operational expansion.