Microsoft just reclaimed its $4T market cap, thanks to its Maia 300 AI chip

What happened: Microsoft (MSFT) returned to a $4 trillion market cap after unveiling its Maia 300 AI chip, following the Maia 100 and Maia 200. Key numbers: $4 trillion market cap. Maia 300 rollout in 2027. Maia 200 rolling out now. Multiple gigawatt deployments planned. Why it matters: Microsoft says the chip beats widely available GPU-based systems in certain applications, part of a push with Google and Amazon to cut reliance on Nvidia and AMD. Microsoft will still buy third-party chips and offer customers multiple silicon options. Coverage: 4 outlets in 24h

Microsoft (MSFT) returned to a $4 trillion market cap after unveiling its Maia 300 AI chip, following the Maia 100 and Maia 200.

Microsoft says the chip beats widely available GPU-based systems in certain applications, part of a push with Google and Amazon to cut reliance on Nvidia and AMD. Microsoft will still buy third-party chips and offer customers multiple silicon options.