Why Rivian Stock Plunged to Start 2024

Rivian Automotive (RIVN -9.76%) stock had a strong 2023. Shares were higher for the year by nearly 30%. Much of that came from a push in the final month of the year, as Rivian shares soared 40% in December alone.On the first day of 2024 trading, though, shares are plunging. The stock was lower by 9.2% as of 11:50 a.m. ET. That came after the company reported reported its fourth-quarter and full-year electric-vehicle (EV) production and delivery results.Buy the rumor, sell the newsThe EV start-up gave invest ...