The U.S. economy just had its worse performance ever as businesses shut down across the country as well as much travel decline.
Wall Street closed out its worst week since June with another day of churning trading Friday, as big technology stocks resumed their suddenly weakened ways.
The S&P 500 rose 1.78, or 0.1%, to 3,340.97, but only after a roller-coaster day where a gain of 0.9% gave way to a loss of 0.9%. It kept swinging up and down after that, the latest examples of the lightning-quick shifts in momentum that have rocked Wall Street recently. Through the tumultuous week, the S&P 500 lost 2.5% to clinch its its first back-to-back weekly loss in four months.
The Nasdaq composite, which