AI Earnings Slowdown in 2027 Could Stall Bull Market, Analysts Warn

The stock market's 2026 surge has been fueled by blockbuster earnings growth, particularly from AI-driven companies. But as Wall Street looks ahead to 2027, analysts are flagging a major risk: that engine of profit expansion may begin to sputter. The concern isn't a collapse, but a deceleration in the rate of earnings growth, which could undermine valuations that have priced in continued momentum. Investors who have ridden the AI wave to record highs may need to brace for a shift from hypergrowth to more modest gains. Key sectors like technology and semiconductors, which have led the rally, could see the sharpest slowdowns as spending normalizes and comparisons become tougher. The takeaway? The biggest threat to this bull market may not be a recession or geopolitics, but simply math—harder comps and a maturing AI cycle that can't keep growing at breakneck speed forever.