U.S. stock futures higher after S&P 500 nabs best weekly winning streak since 2017

U.S. stock index futures were pointing to a slightly higher open on Tuesday, following the longest weekly winning streak since 2017 for the S&P 500, but volumes are expected to be lower as many investors take an extended holiday break in a shortened week of trading.

How are stock-index futures trading?

Stocks finished a choppy, preholiday trading session mostly higher on Friday. The S&P 500 SPX rose 7.88 points, or 0.17%, to 4,754.63, the Dow industrials DJIA slipped 18.38 points, or 0.05%, to 37,385.97 and the Nasdaq…