Rivian's stock fell during early trading after the company reported lower electric vehicle deliveries in the fourth quarter, though production increased. Rivian delivered 13,972 EVs in the fourth quarter, a 10.2% decrease from the previous quarter but in line with analyst expectations of around 14,000 vehicles. Rivian exceeded its full-year 2023 production guidance by manufacturing 57,232 vehicles, with 17,541 EVs in the fourth quarter.