Microsoft News - April 30, 2026
Microsoft Beat Every Number That Mattered, So Why Are Investors Running From a $190 Billion Bill?
Shares of Microsoft tumbled 4.7% to $404.38 on April 30, even as broader markets rallied, after the company coupled a blowout fiscal Q3 with a staggering...
🔴 MSFT is trading 4.7% down today on signaling increased AI infrastructure spending
MSFT is trading at $404.38 (-4.7%) following signals of substantial AI infrastructure spending increases that overshadowed strong Q3 earnings reported on April...
OpenAI GPT-5.5 executes autonomous cyberattacks, matching Anthropic Mythos performance
The UK AI Safety Institute (AISI) reported that OpenAI’s GPT-5.5 model successfully executed a multi-step cyberattack simulation. GPT-5.5 is the second model...
Anthropic launches Claude Security, automating codebase vulnerability detection for enterprises
Anthropic released Claude Security in public beta for Enterprise customers. The tool evolved from a research preview previously known as Claude Code Security....
Microsoft Shares Sink 4% as Massive AI Spending Overshadows Earnings
Microsoft shares fell 4.41% to $401.15 on April 30, 2026. The stock underperformed the Software & IT Services sector, which declined 0.66% during intraday...