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

Tesla stock investors hoping for a gain from Musk's new proximity to government should take a disciplined look first.

(Reuters) - Electric-vehicle maker Rivian plans to launch its advanced hands-free driver assistance systems in 2025 and its "eyes-off" systems in 2026, CEO RJ Scaringe said on Thursday. The company ...