Drops for Nvidia and other superstar stocks are dragging U.S. stock indexes lower on Monday and keeping Wall Street stuck in its weekslong rut. The S&P 500 fell 0.8% in early trading, coming off its fourth losing week in the last five.

BMO Capital Markets forecasts the S&P 500 will reach 6,700, reflecting a gain of 13.2%. Chief investment strategist Brian Belski said he and his team "remain resolutely bullish," but expect "performance and fundamentals will more closely match the historical norms -- namely, in the high-single digit/low-double-digit percentage range in 2025."

A soft finish to 2024 still left stocks with a second straight stellar year. The S&P 500 logged a 23.3% gain, which follows a 24% rise in 2023. The combined gains of more than 53% was the largest two-year percentage jump for the index since year-end 1998,

U.S. stocks are recoiling on worries that good news on the job market may prove to be bad for Wall Street by keeping inflation and interest rates high.

Most Wall Street analysts see upside in the stock market in 2025. Here's what investors should know.