Market Highlights

Wall Street traders lifted stocks as the US and China signaled willingness to keep trade negotiations alive, Middle East tensions cooled while the artificial-intelligence rally powered ahead. Following its worst rout in six months, the S&P 500 jumped 1.6% to extend a bull market that’s already added $28 trillion to its value. The benchmark saw its best session since May. A key gauge of chipmakers surged nearly 5%. Broadcom Inc. soared about 10% as OpenAI agreed to buy its custom chips and networking equipment in a multiyear agreement. tocks fell along with US and European equity-index futures, as a new round of retaliatory trade measures from China revived concern over tensions with Washington.