OpenAI Aiming for $1 Trillion IPO Impacts Microsoft (MSFT) Share Value

Published on 7/4/2026

OpenAI Aiming for $1 Trillion IPO Impacts Microsoft (MSFT) Share Value

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OpenAI is reportedly planning to go public at a valuation of $1 trillion or more, which significantly affects Microsoft (MSFT). Currently, Microsoft owns a 27% stake in OpenAI, valued at approximately $135 billion, and if the IPO is successful, that stake could reach around $270 billion. Microsoft shares are down about 19% this year and nearly 30% below their 52-week high, with the company's total market capitalization at $2.9 trillion. The final terms of the IPO, including timing and valuation, remain uncertain, but it could impact investor perceptions and price appreciation for Microsoft.

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