IBM Stock Tanks After Anthropic Says Claude Code Can Modernize Legacy Code

IBM Stock Tanks After Anthropic Says Claude Code Can Modernize Legacy Code

By Laura Bratton
Publication Date: 2026-02-24 01:20:00

IBM stock dropped 13% on Monday after Anthropic said that its Claude Code tool could be used to automate the modernization of legacy code.

IBM mainframes, computers that process a large portion of the world’s financial transactions, run applications written in COBOL , a programming language developed in 1959 that is widely used by banking institutions, insurance companies and government