Investors in Rivian Automotive (RIVN 4.11%) suffered staggering losses last week after the maker of electric trucks, vans, and SUVs reported mixed earnings Wednesday. The news wasn't all bad. For one thing, Rivian reported sales ahead of analyst targets at $1.32 billion, and its earnings weren't much worse than expected at$1.36 per share. However, management told investors that Rivian will only produce 57,000 electric vehicles in 2024 -- about as many as it produced in 2023. Investors who thought they were ...