Archer Aviation vs. Rivian Automotive: Which EV Vehicle Stock Is a Better Buy in 2026?

A comparison of Archer Aviation and Rivian frames both firms as capital-intensive bets, but in different segments of electrification. Archer Aviation (NYSE:ACHR) focuses on electric vertical takeoff and landing aircraft for urban air-taxi services. It reported only about $300,000 in FY 2025 revenue and a net loss of roughly $618.2 million, with negative free cash flow of $511.7 million. As of December 2025, Archer’s debt-to-equity ratio was around 0.1x and faces FAA and GCAA certification risks, plus ongoing IP litigation involving Joby Aviation. Rivian (NASDAQ:RIVN) reported about $5.4 billion revenue in FY 2025, up roughly 9%, but net loss exceeded $3.6 billion.