Accenture, one of the world's largest consulting and IT-services firms, just had one of its worst days on the stock market in years. Its shares have tumbled to their lowest level since 2017 — a nine-year low.

According to Firstpost, the slide followed a mix of bad news: weak bookings, reduced growth guidance, and slowing demand for outsourcing. But the bigger worry hanging over the stock is what artificial intelligence might mean for traditional consulting work.

That anxiety was front and center elsewhere too. The Motley Fool framed Accenture's worst day in years around a pointed question: "Is AI coming for the consulting business?" The concern is that as companies adopt AI tools, they may need fewer of the advisory and outsourcing services that firms like Accenture have long sold.

The ripple effects spread beyond Accenture itself. According to the Financial Express, tech stocks plunged after Accenture dimmed its outlook, with peers such as Infosys among the movers. Not every stock fell, though — the same report noted that names like NIACL and Paras Defence surged on the day, a reminder that the sell-off was concentrated in the tech and IT-services corner of the market rather than spread across the board.

Why it matters: Accenture is a bellwether for the consulting and outsourcing industry, so a sharp drop driven partly by AI fears signals that investors are starting to bet AI could reshape — or shrink — a business that millions of corporate clients rely on.