U.S. Stock Market Faces Potentially Bumpy Autumn, Wall Street

After a record-breaking bull run for the U.S. stock market this year, many Wall Street analysts are starting to warn that investors could be in for a bumpy ride in the coming weeks and months.

Analysts at firms including Morgan Stanley, Citigroup Inc., Deutsche Bank AG and Bank of America Corp. each published notes this month cautioning about current risks in the U.S. equity market. With the S&P 500 already hitting 54 records through Thursday this year—the most during that period since 1995—several analysts said that they believe there is a growing possibility of a pullback or, at the least, flatter returns.