Volume is extremely light Wednesday, because of the holidays and because markets are still seeking a resolution to the budget showdown in Washington.
Dow Jones industrial futures are up 20 points to 13,085. The broader S&P futures have added 2 points to 1,421.80. Nasdaq futures are up 3 points to 2,661.75.
Standard & Poor's/Case-Shiller issues its 20-city home-price index for October at 9 a.m. Eastern. Prices rose in most major U.S. cities in September, more evidence of a housing recovery that's providing a boost to the economy.
Still, another pillar of the economy, retail spending, is appearing weak this holiday.