Several major Wall Street firms, including Morgan Stanley, Deutsche Bank AG, and Evercore ISI, have advised investors to prepare for a potential near-term pullback in the US stock market. This caution comes as the S&P 500 Index faces pressure from elevated equity valuations amid weakening US economic data. Despite a recent market wobble appearing to subside, these financial institutions warn that the combination of lofty stock prices and souring economic indicators could lead to a decline in the coming weeks and months.