Is Rivian Stock A Buy Or A Sell After 33% Run And This Key AT&T Partnership?

Rivian Automotive is looking to challenge Tesla, Ford and General Motors with its adventure-styled electric vehicles. RIVN shares have surged more than 33% in December, as interest in electric-pickup trucks appears to be picking up following initial deliveries of the Tesla Cybertruck. Rivian stock has advanced this month with Stifel analyst Stephen Gengaro on Dec. 6 initiating coverage on RIVN with a buy rating and a 23 price target.