Wall Street stocks finished higher on Friday after a roller-coaster session following mixed labor market data, concluding a losing week on a positive note.

Briefing.com analyst Patrick O'Hare said investors were reassured by a midday appearance from Federal Reserve Chair Jerome Powell, who described the central bank is in no hurry to shift course on monetary policy.

"When Powell came out with a calm and reassuring tone, it gave the market an excuse to rally," O'Hare said.

The broad-based S&P 500 finished at 5,770, up 0.6 percent for the day but down 3.1 percent for the week.

The Dow Jones Industrial Average added 0.5 percent at 42,801, while the tech-rich Nasdaq Composite Index climbed 0.7 percent to 18,196.

US jobs data for February showed the country's economy added 151,000 jobs last month, up from January's revised 125,000 figure, but fewer than analysts estimates as unemployment ticked higher.

Analysts described the report as unspectacular but good enough to suggest the labor market is not weakening precipitously.

But O'Hare said investors are readjusting their views of the coming period in light of other disappointing economic reports.

"The market is rethinking its growth outlook," he said. "Some of that is the tariffs. Some of that is the work around 'Doge'. Some of it is in the data itself."

Among individual companies, Costco slumped 6.1 percent following disappointing earnings that sparked unease about the wholesaler's exposure to tariffs. Walmart also fell.

But Broadcom surged 8.6 percent after strong results boosted enthusiasm about the company's work in artificial intelligence. (AFP)