NEW YORK — More swings hit Wall Street on Friday, except the U.S. stock market finished higher this time.

After bobbing up and down through the morning, the S&P 500 took off and rallied nearly 2 percent before finishing with a gain of 1 percent. The Dow Jones Industrial Average climbed 493 points, or 1.1 percent, and the Nasdaq composite rose 0.9 percent.

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It was a fitting finish for a week that left the S&P 500 just 4.2 percent below its record but also forced investors to stomach the sharpest hour-to-hour swings since a sell-off in April. The jarring moves are testing investors following a monthslong and remarkably smooth surge for stocks, and they come down to two basic questions, neither of which has been answered yet.

Have prices for Nvidia, bitcoin and other

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