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Microsoft's $1T OpenAI Gamble
5 Jul
Summary
- OpenAI IPO aims for $1 trillion valuation by 2027.
- Microsoft's 27% stake could be worth $270 billion.
- OpenAI's IPO could significantly boost Microsoft's market value.

OpenAI has taken the first formal step towards an Initial Public Offering (IPO) by filing confidential paperwork with the Securities and Exchange Commission. Reports suggest the company is targeting a 2027 debut, with CEO Sam Altman reportedly refusing a valuation below $1 trillion. Microsoft, a significant investor, holds a stake of roughly 27% in OpenAI on a diluted basis.
This stake was valued at approximately $135 billion when the investment agreement was finalized. If OpenAI achieves its desired $1 trillion valuation, Microsoft's 27% share could be worth around $270 billion. This would represent about 9% of Microsoft's total market capitalization and could significantly alter the investment case for the company, especially given Microsoft's recent stock performance.
While the IPO timing and valuation are not yet confirmed, and potential dilution exists, a public listing would provide a clear and liquid valuation for OpenAI. This could bring renewed attention to this significant asset held by Microsoft, potentially boosting its market perception.