U.S. stock index futures bounced up and down late Sunday, after the Dow sank more than 700 points Friday. After falling around 150 points at the start of the electronic trading session, Dow Jones Industrial Average futures YM00, +0.10% rebounded to positive territory, but were down again about 55 points, or 0.2%, as of midnight Eastern. S&P 500 futures YM00, +0.10% and Nasdaq-100 futures NQ00, -0.13% retreated as well. Wall Street ended Friday at its lowest levels in about two weeks as coronavirus cases continued to surge in Southern and Western states, bringing a relatively quick economic rebound into doubt. The Dow Jones Industrial Average DJIA, -2.83% closed 730.05 points, or 2.8%, lower at 25,015.55; and the S&P 500 index SPX, -2.42% retreated 74.71 points, or 2.4%, to close at 3,009.05, and the tech-heavy Nasdaq Composite Index COMP, -2.59% lost 259.78 points to reach 9,757.22, off 2.6%. For the week, the Dow lost 3.3%, the S&P 500 notched a 2.9% decline, and the Nasdaq fell 1.9%.