U.S.-China trade talks in London keep North American markets mixed

TORONTO — U.S.-China trade talks in London give investors the latest shot of optimism even as North American markets registered few gains Monday. In New York, the Dow Jones industrial average was down 1.11 points at 42,761.76. The S&P 500 index was up 5.52 points at 6,005.88 while the Nasdaq composite was up 61.28 points at 19,591.24. "Talks have been ongoing over the last week or so and I think the market is showing or at least behaving as if we’re going to see something positive," said Allan Small, a senior investment adviser at iA Private Wealth Inc. Those negotiations…