U.S. Stock Market Shows Late-Cycle Instability Amid Rate Hikes

The U.S. stock market is displaying late-cycle characteristics as a significant divergence emerges between AI-driven tech giants and the broader market. While the S&P 500 remains near record highs due to strong operating-earnings growth and artificial intelligence themes, the median stock, the Russell 2000, and the KBW Bank Index have declined between 4% and 11% since August 4.

This instability follows a policy shift by the Federal Reserve System from insurance rate cuts to rate hikes. Rising Treasury yields and tightening financial conditions have increased corporate-debt spreads, leading analysts to warn of a potential bust cycle. Some advisors now recommend government bonds as a stabilizing cushion against capital destruction in the tech sector.

Market experts suggest the secular bull market may be in its final phase, characterized by a tech-driven momentum blowoff. While AI-leveraged companies have sheltered the broad index from deeper drawdowns, the current environment of tightening conditions has caused bullish sentiment to abate.