Anthropic's new AI tool can write 67-year-old COBOL code, sending 115-year-old IBM's stock tumbling by 13% — IBM stock has worst day in 26 years, down 25% MoM and counting

Anthropic's new AI tool, capable of writing 67-year-old COBOL code, led to a significant 13% drop in IBM's stock, marking its worst day in 26 years.