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    Archer Aviation (ACHR) Faces Patent Counterclaim, Is The Stock Still 79% Undervalued?

    Simply Wall St·10/16/2026 11:33:34
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    Legal counterclaim puts Archer Aviation’s Midnight aircraft in focus

    Archer Aviation (ACHR) is back under the legal spotlight after Vertical Aerospace Group filed a patent infringement counterclaim related to Archer’s Midnight electric vertical take off and landing aircraft.

    The filing, lodged in the U.S. District Court for the Eastern District of Texas on 7 October 2026, alleges that the Midnight model infringes one or more claims of Vertical Aerospace’s U.S. Patent No. 12,747,027 and seeks injunctive relief and monetary damages.

    Investors have reacted nervously around Archer Aviation in recent months, with the share price down 21.94% over the past 30 days and the year to date share price return falling 47.48%. The 1 year total shareholder return is down 64.03%, despite a 4.91% gain in the last session, as the legal dispute adds another layer of perceived risk to an already volatile story.

    Stress test your exposure to Archer Aviation style legal and technology risk by scanning a curated group of 32 resilient stocks with low risk scores that aim to keep legal and balance sheet surprises to a minimum.

    Archer Aviation is trying to build a serious eVTOL business, yet the share price has been hit hard in the past year. After that drop and fresh legal pressure, is the stock now cheap or just risky?

    Most Popular Narrative: 79% Undervalued

    On the numbers, Archer Aviation closed at $4.27, while the leading community thesis pegs fair value at $20.04, so the valuation gap in that narrative is wide and firmly in focus after this legal twist around Midnight.

    Archer Aviation is positioned to be the first to scale in the trillion-dollar Urban Air Mobility (UAM) market. Unlike competitors struggling with "production hell", Archer has solved the manufacturing equation through its partnership with Stellantis, which is funding and building Archer's high-volume factory in Georgia. With a robust order book (United Airlines) and a clear path to FAA certification for its "Midnight" aircraft in 2025/2026, the current valuation reflects "bankruptcy risk" rather than "commercial launch" potential.

    See why 46 investors see Archer Aviation as 79% undervalued.

    Result: Fair Value of $20.04 (UNDERVALUED)

    Still, the legal counterclaim around Midnight and the scale of Archer Aviation’s reported net loss of $799.7 million remain clear pressure points for this bullish story.

    Find out about the key risks to this Archer Aviation narrative.

    Next Steps

    With a significant split between legal risk and long term promise around Archer Aviation, it makes sense to move quickly and weigh the evidence yourself instead of leaning on headlines or hype. To see how those concerns and potential upsides stack up in one place, review the 2 key rewards and 3 important warning signs.

    Looking for more investment ideas beyond Archer Aviation?

    Do not stop your research with Archer Aviation. Broadening your watchlist with targeted screens can help you spot stronger risk profiles and different return drivers.

    This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.