Archer Aviation is best known for building electric aircraft that take off and land vertically, like a giant drone with seats. Those are called eVTOLs, short for electric vertical takeoff and landing vehicles. The company has been working toward launching a fleet of air taxis in cities, but this week it showed investors a totally different side of the business.
At the Farnborough Air Show, Archer and Anduril, a defense technology company, revealed a new autonomous military aircraft called Thunder. The market liked what it saw. Archer's stock (ticker: ACHR) jumped nearly 20% on the news.
The two companies have been working together since 2024, but this was the first time they showed a finished product. "The applications we can bring in the defense world are quite impressive and very much needed for the warfighter," Archer CEO Adam Goldstein told CNBC's Phil LeBeau.
The Thunder aircraft is built to fly alongside manned planes and helicopters, leveraging the U.S. military's focus on cutting-edge tech and AI. For Archer, defense applications are a "huge market" amid rising geopolitical tensions abroad, Goldstein said. The aircraft also avoids the lengthy certification procedures that commercial versions need.
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The stock rally was not just about one aircraft. Goldstein said the program is crucial for building confidence. "This is really critical to gaining the trust of the public and the trust of the regulators that will ultimately lead to our certification," he said. "That step is going to be hugely critical in order to allow us to meet those timelines."
The combination of a new defense aircraft and a supportive government framework gave investors two reasons to feel optimistic at once.
Archer is still a company with a lot to prove. The commercial air taxi business has encountered obstacles in regulation and infrastructure that have delayed certification timelines. Goldstein acknowledges that the 2028 Olympics deadline is a stretch.
"It's always been an ambitious goal. It's still an ambitious goal, but we're certainly going to try our hardest to get there," he said.
But the company now has two potential tracks to make money. One is the air taxi business, which will need infrastructure, public acceptance, and regulatory sign-offs. The other is defense, where the U.S. government is an experienced buyer willing to pay for new capabilities.
For your portfolio, the takeaway is simple. Archer is a bet on two big trends at once, urban air mobility and military tech, but it comes with real risk.
Keep an eye on the pilot program and the certification timeline. If Archer hits that 2028 goal, the payoff could be huge. If it does not, the stock will reflect that too.
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