"Market Uncertainty: Stock Pickers Nervous as Tech Rally Falters"

The U.S. stock market's "bad breadth" is causing concern among some bullish analysts as only a few megacap tech stocks continue to drive the main indexes higher, with the "Fantastic Four" (Microsoft, Nvidia, Meta Platforms, and Amazon) contributing roughly 70% of the S&P 500's year-to-date gains. Market breadth deterioration and stretched market sentiment are signaling a potential near-term peak for stocks, with some analysts warning of a possible pullback in the coming weeks. Despite finishing at record highs, U.S. stocks opened the new week in the red, with the S&P 500 down 0.5% and the Dow Jones Industrial Average down 0.9% amid concerns about the timing of interest rate cuts.