Multiple major banks, including Morgan Stanley and Evercore, have raised concerns about a potential decline in U.S. stocks, with forecasts suggesting a drop of 7-15%. Analysts are pointing out the need for investors to brace for a modest pullback amidst high valuations and profit-taking pressures. Notably, the S&P 500 could see a 10% decline, according to Morgan Stanley. Despite these warnings, some experts view potential market dips as opportunities, advising investors to stay focused on themes like AI to navigate the anticipated volatility.