The latest on developments in financial markets (all times local):
Stocks ended another bumpy day slightly higher as gains by big technology companies helped the market erase an early plunge.
Facebook added 3.2 percent and Microsoft rose 2.6 percent Monday.
Chipmaker Qualcomm rose 2.2 percent after a Chinese court banned some Apple phones as part of a long-running dispute over patents.
Energy companies fell as the price of crude oil dropped 3 percent, to give up its gains from last week. Exxon Mobil lost 1.4 percent.
The S&P 500 rose 4 points, or 0.2 percent, to 2,637.
The Dow Jones Industrial Average rose 34 points, or 0.1 percent, to 24,423. At one point it was down 507.
The Nasdaq rose 51 points, or 0.7 percent, to 7,020.
Bond prices fell. The yield on the 10-year Treasury rose to 2.86 percent.
Stocks gave up an early gain and turned broadly lower, pushing the market deeper into the red for the year.
Banks, health care stocks and energy companies fell more than the rest of the market Monday.
Bank of America sank 3.7 percent and Exxon Mobil lost 3 percent.
Nutrisystem soared 29 percent after Tivity Health agreed to buy the company.
The S&P 500 fell 27 points, or 1.1 percent, to 2,604. The index is coming off its worst week since March.
The Dow Jones Industrial Average dropped 352 points, or 1.4 percent, to 24,030. At one point the Dow was off as much as 507 points.
The Nasdaq composite fell 27 points, or 0.4 percent, to 6,942.
Bond prices rose. The yield on the 10-year Treasury fell to 2.84 percent.
Stocks are wobbling between small gains and losses in the early going on Wall Street as trading settles down following huge losses last week.
Technology companies were among the early winners Monday. Facebook climbed 2.6 percent and Microsoft rose 1.2 percent.
Online review company Yelp rose 2.5 percent after a shareholder said it wanted to shake up the company's board.
Nutrisystem soared 31 percent after Tivity Health agreed to buy the company for a big premium.
The S&P 500 index inched up 1 point to 2,635. The index is coming off its worst week since March.
The Dow Jones Industrial Average slipped 6 points to 24,375. The tech-heavy Nasdaq composite rose 22 points, or 0.3 percent, to 6,991.