Stocks in retreat as traders reconsider tech investment

While the extreme volatility that greeted the start of the week has calmed, traders remained on edge over the impact of artificial intelligence on companies' bottom lines. The latest development to spook markets was news that AI startup Anthropic -- which created the Claude chatbot -- had unveiled a tool that could be used by firms to carry out legal work. Tuesday's announcement hit firms in the software, financial services and asset management industries, though analysts said there has been a...