Rivian Stock Is Giving Up Its Gigantic IPO Gains. Blame Ford and Tesla.

Stock successful Rivian Automotive is dropping again, possibly due to the fact that Ford Motor and the electric-truck start-up said precocious Friday they aren’t going to make electrical vehicles together. Not everyone is convinced that is the reason, though: Even Tesla, and anticipation that it mightiness divided its stock, could beryllium a factor.

While the S&P 500 and Dow Jones Industrial Average were some up astir 0.7% adjacent midday connected Monday, Rivian (ticker: RIVN) banal was down astir 15% to $108.50. That leaves it a spot little than $2 supra the level of $106.75 where...