Wall Street is handing more decisions to AI agents. What could go wrong?

Fast Company examines the risks of giving AI agents more authority over trading decisions on Wall Street. It cites an April 7, 2025 episode when a false tariff-pause claim swung U.S. stocks by roughly $2.4 trillion in 10 minutes. Experts warn of a "cascade of AI decisions" where one error propagates through multiple systems in seconds.

• On April 7, 2025, U.S. stocks swung about $2.4 trillion in 10 minutes on a false report
• CNBC aired the unconfirmed claim and Reuters published then withdrew its headline
• Experts say agents must judge source credibility and whether evidence is sufficient to act
• Risk of a "cascade of AI decisions": one error can travel through several systems in seconds