Cloudflare is trading 10% up now at $312.95 (+10.08%) after investors responded to its AI-powered Vulnerability Discovery and Remediation service, developed with OpenAI’s Daybreak cyber models.

  • The product autonomously identifies vulnerabilities, blocks attacks, and generates code patches.
  • The OpenAI partnership strengthens Cloudflare’s AI-security positioning, creating a clear company-specific catalyst as broader indexes are lower.
  • Investing.com reported shares were up nearly 7.9% in morning trading on September 9, 2026.