By Anora Mahmudova, MarketWatch

NEW YORK (MarketWatch) -- The U.S. stock market gains mount in late session on Friday as investors examine the details of the jobs report and find a silver lining in an otherwise disappointing headline number.

The 113,000 new jobs added in January fell far short of forecasts, but the unemployment rate ticked down and the labor force participation rate edged up, according to the Commerce Department.

Investors found an upbeat earnings report from Expedia Inc. (EXPE) encouraging.

The S&P 500 (SPX) rose 15 points, or 0.9%, to 1,788.24, building on the previous day's gains. The benchmark index is set to finish the week with a modest gain reversing sharp losses during the volatile week.

The Dow Jones Industrial Average (DJI) rose 105 points, or 0.7%, to 15,733, also on track to end the week slightly higher.

The Nasdaq Composite (RIXF) added 50 points, or 1.3%, rising to 4,106.69 and is set to finish the week with a slight gain. Follow our stock market live blog.

"The top line in the jobs report was weak but the details had many positive aspects," said Paul Zemsky as chief investment officer of Multi-Asset Strategies at ING U.S. Investment Management.

"The household survey side of the report, which we think leads the businesses survey, was far stronger at 638,000 -- there is a big discrepancy, so we believe the labor market is stronger than what the headline number suggests," Zemsky said.

"Also, the fact that the unemployment rate fell and labor force participation rose is a good sign," he added.

Details in the report, including an increase in aggregate hours worked and average weekly earnings, signaled a "reduction in labor-market slack," said Millan Mulraine, deputy head of U.S. research and strategy at TD Securities.

Wall Street saw the best gains in seven weeks on Thursday following a bigger-than-expected drop in weekly jobless claims and some upbeat earnings.

Adding to the positive sentiment were upbeat earnings from Expedia Inc. (EXPE). Shares surged 12% after the company reported profits that beat estimates.

Shares of Activision Blizzard Inc. (ATVI) jumped 15%. The videogame company reported a 51% decline in fourth-quarter profit late Thursday, but shares strengthened as adjusted results beat expectations.

Apple Inc. (AAPL) shares rose 1.9% when it emerged that the company bought $14 billion of its own shares in the two weeks since reporting results that left investors disappointed.

Shares of LinkedIn Corp. (LNKD) fell 6.7% after the social network for professionals posted a weak outlook, though fourth-quarter results topped analysts' forecasts late Thursday. Shares fell more than 8% in late trade.

Cigna Corporation (CI) shares tumbled 9.2% after the health insurer's disappointing fourth-quarter earnings added to Wall Street worries that insurers are getting squeezed by rising medical costs.

In other markets, European stocks moved higher after the U.S jobs data, while Asia closed broadly higher. The dollar shrugged off most losses Friday sparked by data showing the U.S. economy added fewer jobs than expected in January, as investors looked past the weak headline number to the details.

Gold trimmed gains, while oil prices and natural gas rose.

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