NEW YORK — Wall Street rose to more records on Monday at the start of a week that could show whether the U.S. stock market’s big recent rally has been overdone or prescient.

The S&P 500 climbed 0.5 percent and topped its prior all-time high, which was set last week. The Dow Jones Industrial Average rose 49 points, or 0.1 percent, and the Nasdaq composite added 0.9 percent to its own record.

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Tesla helped lead the way and rose 3.6 percent after Elon Musk bought stock worth roughly $1 billion through a trust. The electric vehicle company’s stock price came into the day with a slight loss for the year so far, and the purchase could be a signal of Musk’s faith in it.

Alphabet was the single strongest force lifting the S&P 500 after gaining 4.5 percent, which brought t

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