Shares of Archer Aviation (ACHR) surged more than 18% on Monday after the electric vertical takeoff and landing (eVTOL) manufacturer, together with defense technology company Anduril Industries, unveiled a new autonomous aircraft platform. The hybrid-electric vertical lift platform, designed for dual military and commercial use, marks a major strategic expansion beyond Archer’s core urban air mobility business.
The defense variant, called Thunder, is a Group 5 autonomous attack rotorcraft built to enhance crewed military aircraft capabilities. According to a joint statement, the aircraft is based on a common platform developed from the ground up by both companies, described as “a step change in vertical lift: a new class of autonomous aircraft with the speed, range, payload and operating cost that defense and commercial missions demand.” The platform will support missions including strike operations, cargo transport, logistics, and austere-environment deployments.
Archer confirmed it will announce its first commercial partners for the aircraft later this week, potentially adding a near-term catalyst. The company also highlighted its earlier launch of Zee, an AI foundation model for aviation that processes flight data on-device without an internet connection, broadening its investment narrative beyond air taxis.
The move comes as eVTOL makers diversify into defense and logistics to offset certification delays, infrastructure challenges, and high capital costs in the air taxi market. Archer holds approximately $1.8 billion in liquidity, providing runway for multiple programs. The stock gained as much as 19.8% intraday, trading at $5.37, though it remains down about 60% from its 52-week high of $14.62. Anduril’s senior vice president Shane Arnott noted the platform harnesses the best commercial eVTOL technologies for defense, while Archer CEO Adam Goldstein emphasized a clean-sheet design approach. Analysts hold a consensus Hold rating on the stock with an average target of $11.83, though views remain mixed.
