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.

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 ...

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

IBM stock rebounded on Tuesday, climbing around 4% to $234.68, as investors reassessed the previous day’s steep decline and ...

IBM's stock ended Monday as the worst-performing member of the S&P 500 following a disruptive AI announcement from Anthropic.

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

Enterprises seeking to make good on the promise of agentic AI will need a platform for building, wrangling, and monitoring AI agents in purposeful workflows. In this quickly evolving space, myriad ...

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 (NYSE:IBM) shares rose 4% Tuesday, recovering from Monday’s sharp decline after analysts defended the company’s mainframe ...