American Express and other financial stocks dragged the Dow Jones Industrial Average and S&P 500 lower on Monday as investors reacted to a bleak 2027 AI-driven recession scenario published by Citrini Research, a firm that offers thematic and global macro trading ideas. The firm says it's bullish on AI's potential and wonders about the economic implications if the impact is so far-reaching that it turns out to be bearish. American Express, Capital One Financial, Blackstone Financial and KKR were among companies in Citrini's fictional write-up that were among Monday's biggest S&P 500 laggards.