The Trump Bull Market Is Near Its Tipping Point, According to More Than 150 Years of History

The stock market has surged under President Trump's second term, but historical data suggests the bull market is nearing a critical turning point. The S&P 500's Shiller P/E ratio has reached 42.84, the second-highest valuation in history and only 3.5% away from the dot-com bubble peak. Combined with AI stocks representing ~40% of the market and concerns about AI optimization similar to past tech bubbles, analysts warn that significant downside may be imminent.