Heightened coronavirus fears, falling yields, and Super Tuesday primary results sent stocks on a rollercoaster ride of sharp price swings, leaving stocks marginally higher for the week.

The Dow Jones Industrial Average improved 1.79%; the S&P 500, 0.61%; the Nasdaq Composite, 0.10%. Outside the U.S., developed equity markets tracked by the MSCI EAFE Index rose 2.60%