
The stock market's recent strong rally, driven by AI profits and S&P 500 growth, is raising concerns of irrational exuberance and extreme concentration in certain sectors like semiconductors and Asian indices. Valuations appear stretched, with margin debt levels reminiscent of past bubbles, increasing the risk of sharp declines if sentiment shifts or inflation rises. The author advises focusing on stable, high-margin dividend stocks such as McDonald's to reduce portfolio volatility and avoid overvalued, hype-driven assets.