S&P 500’s Monthly Advance in Jeopardy Before Jobs Report: Chart

American stocks are clinging to their sixth monthly advance as traders await Friday’s jobs report, which may provide more clarity on the path for interest rates in the world’s largest economy. The S&P 500 Index on Tuesday trimmed its August gain to 0.1 percent amid mixed economic data and as remarks from policy makers spurred increased speculation over the timing of the Federal Reserve’s next move.