Capital Economics has issued a warning that the current U.S. stock market bull run may conclude by 2027. According to Jin10, the chief market economist at Capital Economics highlighted recent trends where small-cap, value, and defensive stocks have outperformed large-cap, growth, and cyclical stocks. This pattern bears a striking resemblance to the late stages of the internet bubble. The analysis suggests that the ongoing intense rotation in stock performance could be an early indicator of a significant market shift. Investors are advised to monitor these developments closely as they may signal broader changes in market dynamics.