Stock prices bounced around last week as investors reacted to wild swings in the price of oil and reports that called into question the efficacy of two potential virus treatments.

The Dow Jones Industrial Average retreated 1.93%, while the Standard & Poor’s 500 lost 1.32%. The Nasdaq Composite Index slipped 0.18%. The MSCI EAFE Index, which tracks developed overseas stock markets, declined 1.21%.