IBM stock has tumbled 20.6% in three months after Anthropic's Claude Code threatened its legacy COBOL moat - can hybrid cloud and watsonx offset the risk?

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

COBOL is a computer language used for business data processing and IBM is a leader in that area.

Claude, Anthropic's AI chatbot, has sparked major selling of US tech stocks as its capabilities induce fear among investors ...

IBM shares tumbled after Anthropic unveiled a tool aimed at business that use a decades-old programming language ...

Is Claude Code coming for Big Blue? Plus, Boom Supersonic leaves Greensboro site unclear and Duke ups minimum wage in this ...

IBM (NYSE:IBM) saw its sharpest single day stock drop in over 25 years after Anthropic launched Claude Code, an AI tool aimed at automating COBOL system modernization. The news sparked broad debate ...

IBM shares saw their sharpest fall in over 25 years after AI startup Anthropic said its Claude Code tool can understand and modernise COBOL, a language deeply tied to IBM's mainframe business. Here is ...

The Amazon- and Google-backed AI startup said its latest tool would make it easier to update decades-old business software.

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

Discover how Anthropic's AI tool threatens IBM's dominance by modernising COBOL systems, causing a 13.2% stock drop and ...

He declared that “AI disruption risk has finally entered the IBM debate,” noting that shares had previously been spared the ...