Citigroup's stock plummeted 5.64% during intraday trading on Monday, as investors reacted to warnings from a former company executive about the disruptive impact of artificial intelligence on the workforce.

Rob Garlick, former Head of Innovation, Technology, and the Future of Work at Citi Global Insights, stated in a Monday interview that AI robots will exceed the working population within decades, with robots having payback periods of less than 10 weeks compared to human workers. He cited Citi research projecting billions of AI robots by 2050, highlighting severe concerns about human job displacement.

The warning has intensified fears that AI could rapidly transform traditional employment sectors, including finance, potentially affecting operational costs and future profitability. Other global leaders have recently echoed similar concerns about AI's impact on labor markets.