IBM is the latest AI casualty. Shares are tanking 11% on Anthropic programming language threat

International Business Machines Corp. (IBM) signage on the floor of the New York Stock Exchange (NYSE) in New York, US, on Monday, Dec. 8, 2025.International Business Machines stock is getting slammed, becoming the latest victim of rapidly developing AI technology, after Anthropic's Claude announced COBOL capabilities. Shares of IBM fell 11% in Monday afternoon trading after Anthropic outlined a new use case for its Claude Code product: automating the exploration and analysis work that drives most of the co ...