The Best Move You Can Make With Your Investments in 2019, According to 5 Market Professionals by Sergei Klebnikov Investors enter 2019 with the U.S. economy humming and the stock market in the midst of the longest bull market on record. And yet they can't seem to find enough to worry about. High stock valuations, rising interest rates, and global political dysfunction have all combined to make the final weeks of 2018 some of the rockiest all year.