Microsoft reclaimed a $4 trillion market cap on Monday for the first time since October 2025, closing at $4.02 trillion as shares gained 1.14%. That puts the company close to its all-time valuation record of $4.029 trillion, set on Oct. 28, 2025. Microsoft last closed above the $4 trillion mark on Oct. 29, 2025, according to Dow Jones Market Data.
This is another step in Microsoft's comeback as investors reassess its growth prospects and competitive position in AI. Demand for AI infrastructure, cloud computing, and enterprise software remains central to the long-term outlook, though the timing and profitability of AI investments continue to shape sentiment across the tech sector. With its market value approaching a new record, Microsoft could set a fresh milestone if the stock keeps its upward momentum.
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