Microsoft Briefly Hits $4 Trillion Market Cap
Microsoft Briefly Hits $4 Trillion Market Cap
On October 28, 2025, Microsoft (MS) achieved a record-breaking market capitalization, briefly surpassing $4 trillion during trading. This milestone was reached around 10:10 AM on the New York Stock Exchange, with shares trading up 2.9% from the previous day's closing price. Analysts attribute Microsoft's success to its leading position in artificial intelligence (AI) technology, which has garnered significant investor confidence. In particular, its partnership with OpenAI, the developer of ChatGPT, is seen as a key driver behind the increased market capitalization. Microsoft recently agreed to a new governance structure with OpenAI, signaling closer collaboration between the two companies. This partnership is expected to give Microsoft a competitive edge in the AI technology race, ultimately contributing to the landmark achievement of surpassing a $4 trillion market cap. Moving forward, Microsoft is expected to further enhance its corporate value through continuous investment and innovation in the AI sector.
Microsoft's brief passage beyond the $4 trillion mark is not just a stock market milestone; it's a symbolic event demonstrating the impact of technological innovation and growth on the economy. The AI technology spearheaded by Microsoft is accelerating innovation across various industries, creating new engines for economic growth. Furthermore, Microsoft's success is expected to positively influence other tech companies, intensifying competition in technological innovation and ultimately delivering better services and products to consumers. South Korean President Lee Jae-myung expressed optimism that Microsoft's achievement will positively impact the South Korean economy, emphasizing the need for domestic companies to strengthen their competitiveness in the global market through innovative technology development. U.S. President Donald Trump also congratulated Microsoft on its success, reaffirming his commitment to supporting innovation and growth in the American economy.
Microsoft also announced that OpenAI has finalized a corporate restructuring plan. As part of this restructuring, OpenAI will transition into a Public Benefit Corporation (PBC), signaling a commitment to strengthening its social responsibility and pursuing public interest goals. Following the restructuring, Microsoft will hold a 27% stake in OpenAI's for-profit sector, a move interpreted as Microsoft's strategy to further strengthen its partnership with OpenAI and expand its influence in the AI technology field. The transition to a PBC demonstrates OpenAI's commitment to considering ethical issues and social impact during technology development, ensuring that AI technology benefits society as a whole. This change at OpenAI is expected to stimulate discussions on the social responsibility of AI technology development and emphasize the need for companies to pursue both technological innovation and social value creation.
OpenAI's transformation into a Public Benefit Corporation is seen as more than just a change in corporate structure; it reflects a deeper consideration of the direction and values of AI technology development. Through this transition, OpenAI is expected to prioritize the creation of social value over profit-seeking and strive to ensure that AI technology positively impacts humanity. This shift is expected to influence other tech companies, encouraging them to prioritize social responsibility and pursue sustainable growth. Microsoft, by holding a stake in OpenAI, is expected to actively support these changes and collaborate to ensure that AI technology is used for socially beneficial purposes. South Korean President Lee Jae-myung emphasized that OpenAI's transition to a Public Benefit Corporation should remind South Korean companies of the importance of socially responsible management, urging domestic companies to further contribute to the creation of social value.
