Rivian stock fell Monday following a couple of recent Wall Street downgrades. Risks are starting to outweigh potential rewards.Shares of the electric-vehicle start-up lost 7.8%, closing at $11.96 apiece,

Rivian Automotive Inc. makes good on its promise to get to its first quarterly gross profit and blows past Wall Street estimates for its sales.

Startup Rivian Automotive hit a milestone Thursday, reporting its first quarter of gross profit. The hitch: Much of it was driven by sales of regulatory credits to other automakers, rather than electric-vehicle sales.