By Kate Gibson
NEW YORK (MarketWatch) -- U.S. stock-index futures wavered between slight gains and losses Friday as investors considered a disappointing jobs gain in April but upward revisions for the prior two months. Futures for the Dow Jones Industrial Average DJM2 -0.40% were lately off 8 points at 13,135. Futures for the S&P 500 SPM2 +0.19% fell nearly 1 point to 1,385.20. Futures for the Nasdaq 100 NDM2 +0.20% lost almost 2 points to 2,690.25.
