Several EV stocks including Lucid Group Inc (LCID  ) and Fisker Inc (FSR  ) are trading higher Monday amid strength in clean energy stocks, which is being driven by better-than-expected delivery numbers from Tesla (TSLA  ) and other EV makers.

TSLA Deliveries: Tesla produced 479,700 vehicles in the second quarter, up from 440,808 vehicles in the first quarter. The EV maker delivered 466,140 vehicles, up from 422,875 in the first quarter.

Tesla's second-quarter deliveries consisted of 446,915 Model 3 and Model Y vehicles and just 19,225 Model S and Model X vehicles. Tesla's quarterly delivery numbers were up more than 83% year-over-year.

RIVN Deliveries: Rivian (RIVN  ) said it produced 13,992 vehicles in the second quarter, up from 9,395 in the first quarter. The company reported second-quarter deliveries of 12,640 vehicles, up from 7,946 in the first quarter. Rivian's production and delivery numbers were in line with company expectations.

The company said it believes it's still on track to meet its previously provided annual production guidance of 50,000 vehicles.

NIO Deliveries: Nio (NIO  ) said it delivered 10,707 vehicles in June, up from 6,155 vehicles in May. The company reported total deliveries of 23,520 for the second quarter, bringing cumulative deliveries up to 344,117 as of June 30.

Deliveries last month consisted of 4,324 sedans and 6,383 SUVs versus deliveries of 3,759 sedans and 2,396 SUVs in May.