Stocks are closing broadly higher on Wall Street as investors welcomed China's move to exempt some US products from a recent round of tariffs, the AP reports. Technology, health care and communication services stocks powered much of the gains Wednesday for the S&P 500, which has been essentially flat for much of the week. Investors also continued to favor smaller-company stocks. Apple climbed 3.2% a day after announcing a new lineup of iPhones and a low-priced video streaming service to compete with Netflix. The S&P 500 rose 21 points, or 0.7%, to 3,000. The Dow Jones Industrial Average rose 227 points, or 0.8%, to 27,136. The Nasdaq climbed 85 points, or 1.1%, to 8,169. Bond prices fell. The yield on the 10-year Treasury rose to 1.74%. (More stock market stories.)