IBM shares plummeted after AI startup Anthropic announced its tool can automate COBOL modernization, threatening IBM's core ...

IBM or International Business Machines Corp had its worst day on stock market in more than 25 years on Monday, February 23.

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

International Business Machines Corp. shares had their worst day in more than 25 years on Monday, after AI startup Anthropic ...

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 ...

International Business Machines Corporation stock plunges; downgrade IBM to Hold as Anthropic's Claude Code threatens ...

Following the recent selloff, IBM’s valuation has become more compressed, according to analysts. The stock now trades at roughly 18 times projected 2026 earnings and about 16 times this year’s free ...

After Anthropic introduced a tool for automating time-consuming COBOL modernization, IBM's stock plummeted over 13 percent.

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