Rivian stock sinks 10% after revenue miss, weak outlook

Shares of Rivian Automotive Inc. dropped 10% in after-hours trading Tuesday after the electric-vehicle maker narrowed its quarterly loss but missed revenue expectations and revealed struggles with parts shortages and other manufacturing hiccups as it tried to ramp up production.

“The supply constraint is, by far and away, the biggest constraint,” Rivian RIVN Chief Executive RJ Scaringe said in a call with analysts after results.

Ongoing…