US stock indexes rise Tuesday; Nasdaq up 1% as chip stocks rebound before a heavy earnings week

US equity markets rose in Tuesday trading, 21 July 2026. The Nasdaq climbed about 1 percent, led by a rebound in semiconductor stocks, while the S&P 500 gained around 0.6 percent and the Dow Jones Industrial Average rose about 0.5 percent. Nvidia shares added about 1 percent after the chipmaker disclosed a stake in the neocloud provider Nebius.

Investors are heading into a heavy earnings week: Alphabet and Tesla report quarterly results on Wednesday and Intel on Thursday, with 77 S&P 500 members reporting in all this week. Tuesday's advance followed Monday's decline, when worries over US-Iran tensions had dragged the market lower.