Why is Microsoft stock climbing today?

INVESTING.COMMay 15, 1:44 PM UTC

Key insights

  • Microsoft shares are rising due to analyst upgrades following a renegotiated OpenAI agreement, seen as highly favorable for Azure monetization and AI revenue. The revised deal increases expected revenue from OpenAI this year. Positive sentiment is further boosted by advanced talks to acquire Inception and the unveiling of a new AI-powered cyber defense system. Analysts at Wedbush, TD Cowen, Phillip Securities, and Citigroup have reiterated positive ratings and increased price targets.
Why is Microsoft stock climbing today?

Investing.com -- Microsoft stock rose +1.75% in morning trading to reach $416.59, powered by a wave of analyst upgrades and bullish commentary surrounding the company’s recently renegotiated commercial agreement with OpenAI, which Wall Street views as structurally favorable for Azure monetization and long-term AI revenue generation. Under the revised terms, OpenAI has committed to a ceiling of $38 billion in total revenue-sharing obligations to Microsoft through 2030, and the new structure removes OpenAI’s prior ability to defer certain payments, meaning Microsoft will now collect roughly $6 billion from OpenAI this year — up from the approximately $4 billion previously expected.

The revised deal also eliminates Microsoft’s requirement to share revenue with OpenAI on Azure sales of OpenAI models to cloud customers — which Wedbush’s Daniel Ives described as the removal of a "meaningful drag" on Azure’s ability to monetize AI. Ives assigned MSFT an Outperform rating backed by a $575 price target, implying shares could gain approximately 42% from current levels. Separately, TD Cowen reiterated its Buy rating on MSFT with a $540 price target, and noted that Microsoft expects Azure growth to accelerate in the second half of 2026. Phillip Securities also upgraded the stock to Buy on May 13 with a $485 price target, while Citigroup reiterated a positive rating with one of the highest targets on the Street at $620.

Adding to the positive sentiment, Microsoft is in advanced talks to acquire Inception, a Stanford University spin-off developing advanced language models, at a valuation exceeding $1 billion — with Microsoft’s venture arm, M12, having already invested in the startup in late 2025. Microsoft also announced a major step forward in AI-powered cyber defense with the unveiling of a new multi-model agentic scanning system codenamed MDASH, which demonstrated 96% recall on historical security cases in the Windows clfs.sys component and 100% recall on tcpip.sys cases, topping leading industry benchmarks. On May 14, Microsoft also announced the appointment of Carmine Di Sibio, former global chairman and CEO of EY, to its board of directors.

Despite the company-specific tailwinds, the broader market environment today is challenging, with the S&P 500 down -1.18%, the Dow Jones down -0.93%, and the NASDAQ down -1.66%, making Microsoft’s gain particularly notable as it bucks the broader selloff. A UK antitrust probe examining Microsoft’s bundling of Windows, Office, Teams, Copilot, and AI features remains an overhang, with an investigation due by February 2027. Taken together, the restructured OpenAI deal, a cluster of analyst price target increases, the Inception acquisition talks, and the MDASH cybersecurity reveal have combined to give investors renewed confidence in Microsoft’s AI monetization trajectory, allowing the stock to trade meaningfully higher even as the rest of the technology sector retreats.

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