Investors reacted to Anthropic’s assertion that Claude Code could streamline legacy COBOL modernization, raising concerns about pressure on IBM’s high‑margin mainframe services despite longstanding ...

IBM stock plunged on Claude Code COBOL fears, but Jefferies says IBM’s watsonx is already modernizing mainframes with GenAI—read more now.

Azul, the trusted leader in enterprise Java for today’s AI and cloud-first world, today warned enterprises of a growing Java application modernization crisis driven by technical debt and converging ...

A blog post by Anthropic pointing out that Claude Code can refactor legacy COBOL applications appears to have sent IBM’s share price down by double ...

IBM just got hit with one of its worst single-day drops in years. Shares fell over 13.2% on Feb. 23, 2026, closing at $223.35 ...

IBM shares rebound 5% after AI fears fade, as analysts defend its mainframe strength and downplay risks from Anthropic’s ...

Big Blue has been saying this itself since 2013 IBM’s share price slumped by 13 percent on Monday, seemingly caused by investors reacting to an Anthropic blog post that points out its Claude Code ...

On 23 Feb 2026, IBM shares dropped 13%, losing nearly $30B, after Anthropic's Claude AI promised faster COBOL modernization, ...

On3, 2026, Anthropic unveiled Claude Code, an AI tool capable of modernizing decades-old COBOL systems in months rather than years.