Don't expect significant stock market gains in 2019, says Goldman's Oppenheimer Improving market sentiment since the beginning of 2019 has helped the Dow Jones Industrial Average jump more than 7 percent, with the pan-European Stoxx 600 also climbing over 6 percent. "It's worth noting that we expect pretty weak profit growth across all major regions this year," Goldman Sachs' Peter Oppenheimer told CNBC on Friday. When asked whether investors had seen most, if not all, of their stock market gains already this year, Oppenheimer replied: "Largely, I think, yes."