Tesla accounted for 59% of US electric vehicle sales in the fourth quarter of 2025, up from 41% in the third quarter and marking its strongest quarterly performance since 2023. The figures, analyzed by CareEdge using Cox Automotive data, show Tesla gaining share as the broader market contracts. Total US EV sales were roughly 66,000 units in January 2026, down 29.9% from a year earlier, while EVs represented about 5.8% to 6% of total new-vehicle sales in Q2 2026. Tesla’s share reached 60.5% in January despite a 17% month-over-month sales decline. Tesla is estimated to represent roughly 45% of full-year 2026 US EV sales, compared with 49% in 2024, and held 50.5% of the market in Q2 2026. The Model Y and Model 3 remain its main volume drivers, supported by pricing, brand recognition, manufacturing scale and an established charging network. Hyundai, Toyota, Cadillac and Rivian now complete the top five US EV sellers, while Ford fell out of the top five in January 2026. The divergence between Tesla’s quarterly share peaks and its lower full-year estimate highlights volatility in purchasing patterns, while changes to federal EV incentives continue to influence buyers and legacy automakers’ pricing decisions.