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

The feud between Elon Musk and Sam Altman has been years in the making, litigious, and above all else, personal. Or at least it used to be. Now Musk is holding Altman’s feet to the fire for his ...

The Zacks Research Daily presents the best research output of our analyst team. Today's Research Daily features new research reports on 16 major stocks, including Tesla, Inc. (TSLA), UnitedHealth ...