US stock futures point to a higher open on Black Friday in what will be a shortened trading day. The stock market will close at 1 p.m. ET. With a lack of economic data today traders will be watching indications of how the retail sector performs on the biggest shopping day of the year. On Wednesday stocks reached two-day highs on light volume. After Monday's potent rally that followed Friday's reversal traders were anticipating some rest and digestion ahead of the holiday. The fact that markets rose on Tuesday and Wednesday albeit only modestly and on dwindling volume can ...