Wall Street cruised to the finish of a winning week that began much bumpier.

The S&P 500 rose 0.5% Friday. The Dow Jones Industrial Average added 0.5%, and the Nasdaq composite climbed 0.5%.

The gains capped the S&P 500’s best week since August, but it was a roller-coaster ride. Indexes careened through jarring swings as worries built about the financial health of small and midsized banks, as well as the souring U.S.-China trade relationship. Bank stocks steadied themselves on Friday, while President Donald Trump eased some of the trade concerns after saying very high tariffs on China are not sustainable.

On Friday:

The S&P 500 rose 34.94 points, or 0.5%, to 6,664.01.

The Dow Jones Industrial Average rose 238.37 points, or 0.5%, to 46,190.61.

The Nasdaq composite rose 117.44 points,

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