S&P Futures are lower this morning even after a better-than-expected jobs report. Employment figures are closely watched for clues about the impacts of the Federal Reserve's interest-rate rises on the broader economy. Economists estimate that employers added jobs at a robust pace in July, but fewer than in June, adding to signs of slowing economic growth. While the jobs report could also impact the size and pace of Fed interest-rate increases going forward, it is a lagging indicator. Oil has reversed earlier gains and is now trading lower.