The S&P 500 and Nasdaq ended sharply higher on Monday, with Broadcom and other chip stocks rallying as investors bought shares in companies related to artificial intelligence that are expected to drive a strong second-quarter earnings season. Broadcom jumped 3.7% after the chipmaker and Apple agreed to extend a deal through 2031 to develop and supply a range of custom chips. The S&P 500 information technology sector index climbed 1.3%, while the Philadelphia SE Semiconductor index…
