Microsoft has achieved a $4 trillion market valuation, becoming only the second company to reach this milestone after Nvidia. This surge is attributed to strong earnings reports, particularly the first-time disclosure of Azure revenue, which exceeded $75 billion for the 2025 fiscal year. Microsoft's stock price jumped by approximately 4 percent following the announcement, solidifying its position. This valuation reflects Microsoft's continued growth and dominance in the tech industry, especially in cloud computing.