Nvidia announced two new $2 billion investments in photonics makers Coherent and Lumentum, sending their stocks higher as the AI giant secures critical components for next-generation data centers. The partnerships aim to scale Nvidia's networking business through advanced optical technology that could dramatically improve AI infrastructure efficiency.

Meanwhile, Apple unveiled a $599 entry-level iPhone 17e alongside two new iPad Air models ahead of its March 4 event. The company's three-day product rollout signals a strategy to capture budget-conscious consumers while maintaining premium offerings. These moves come as tech giants navigate a shifting competitive landscape.

OpenAI's deal with the Department of Defense marks a significant shift in AI military applications, following Trump's order to cut ties with Anthropic. The agreement includes guardrails similar to those Anthropic sought, highlighting growing tensions over AI ethics and government contracts. This development underscores how quickly the AI sector's government relationships are evolving.