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Stocks notched broad gains on Wall Street Wednesday as investors drew encouragement from China’s move to exempt some U.S. products from a recent round of tariffs.

Technology, health care and communication services stocks powered much of the rally. The benchmark S&P 500 index, which had been essentially flat since Friday, is on track for its third straight weekly gain.

Bond yields continued to climb. Oil prices fell, and investors also continued to favor smaller-company stocks.

Wednesday’s push into technology companies marked a reversal from the first couple of days of the week, when traders bid up energy, financials and other sectors that had sold off in recent weeks.

The tech sector is particularly sensitive to fallout from the trade war between Washington and Beijing because many big companies, such as Apple, manufacture products in China.

The S&P 500 rose 21.54 points, or 0.7%, to 3,000.93. It’s the first time the index has finished above 3,000 points since July 30.

The Dow Jones Industrial Average gained 227.61 points, or 0.8%, to 27,137.04. The Nasdaq picked up 85.52 points, or 1.1%, to 8,169.68.

The Russell 2000 index of smaller-company stocks outpaced the broader market, climbing 32.72 points, or 2.1%, to 1,575.71.

Bond prices fell. The yield on the 10-year Treasury rose to 1.75% from 1.70% late Tuesday.