The major indexes added to strong weekly gains. Tesla and AI chipmakers such as Nvidia and Arm are testing key levels.

People take pictures on an overpass with a display of stock information in front of buildings in the Lujiazui financial district in Shanghai, China August 6, 2024. REUTERS/Nicoco Chan/File photo ...

Stocks: Real-time U.S. stock quotes reflect trades reported through Nasdaq only; comprehensive quotes and volume reflect trading in all markets and are delayed at least 15 minutes. International ...

1 Day SMCI -4.66% DJIA 0.86% S&P 500 0.16% Technology -0.57% ...