Microsoft targets $5 trillion valuation by 2026 as in-house AI outgrows OpenAI stake

Microsoft, valued at $3.59 trillion, is projected to reach about $5 trillion in market capitalization by 2026 as it expands artificial intelligence across Azure, Office, Windows and other products. The company has invested roughly $13 billion in OpenAI and holds a 27% stake, yet most of its AI revenue already comes from Azure AI services rather than reselling OpenAI models. Microsoft is also spending heavily on AI infrastructure, including a planned $80 billion outlay through fiscal 2025 and a $5 billion commitment to Anthropic.