On November 18, 2025, Microsoft announced new strategic partnerships with NVIDIA and Anthropic, signaling a major expansion of its AI capabilities and ecosystem[1]. This announcement coincides with the opening of Microsoft Ignite 2025, a flagship event focused on AI innovation and enterprise solutions[2][3]. Despite the major news, MSFT shares are trading sharply lower at $493.65 (-2.73%) amid a broad market selloff, with the S&P 500 and NASDAQ both down over 1% as investors react to fading rate cut expectations and increased volatility. The stock's decline appears driven more by overall market sentiment than by company-specific developments.