The S&P 500 sank 5% in a very bad week for stocks. These 20 lost as much as 24%.

U.S. stocks sputtered Friday to close out the week in the red. The day’s declines of less than 1% for the broad indexes paled against Tuesday’s, when they sank 4% to 5%.

For the week, the Dow Jones Industrial Average DJIA, -0.45% was down 1,329 points (or 4.1%), closing Friday at 30,822. The benchmark S&P 500 SPX, -0.72% pulled back 4.8% for the week, while the Nasdaq Composite Index COMP, -0.90% gave up 5.5%.

Investors have been jittery, reacting to any sign of continuing consumer price increases or economic strength...