We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

Down 20%! This US stock just got stung by a short report

Frustratingly, I sold this US stock last year before it proceeded to more than triple. But two weeks can be a long time in the stock market.

| More on:
Middle-aged white man pulling an aggrieved face while looking at a screen

Image source: Getty Images

You’re reading a free article with opinions that may differ from The Motley Fool’s Premium Investing Services. Become a Motley Fool member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn More.

Archer Aviation (NYSE: ACHR) is a US stock that has been on my mind recently. I sold shares of this flying taxi start-up about a year ago, just before they went on to surge by more than 200%. Cue Homer Simpson’s famous catchphrase…

Rubbing salt in the wounds was rival Joby Aviation (NYSE: JOBY), the stock I doubled down on with the cash from that Archer sale. Until recently, it was ‘only’ up about 40% over this period.

XXX

So I was beginning to think I might have backed the wrong horse, especially after Archer signed a deal with Palantir earlier this year to “build artificial intelligence (AI) for the future of next-gen aviation technologies“.

However, two pieces of news have recently sent the Archer and Joby share prices on divergent flight paths. Here’s what has happened.

The Archer news

Archer Aviation is aiming to launch an air taxi service in Abu Dhabi by the end of 2025 with its Midnight electric vertical take-off and landing (eVTOL) aircraft. In Q1, it said everything had gone splendidly, and it had more than $1bn on the balance sheet.

Founder and CEO Adam Goldstein commented: “Archer’s pushing the boundaries of what’s possible and reshaping the future of aviation for years to come.” The stock jumped 23% after this bullish update.

However, it plummeted 20% a couple of weeks ago when short-seller Culper Research released a report accusing Archer of misleading investors. It said the firm’s Midnight eVTOL isn’t as far along as management has claimed, while also highlighting design changes that might suggest aircraft stability problems.

In response, Archer called the claims “baseless“, and said Culper is “not a credible research institution“.

The Joby news

By contrast, Joby stock surged 27% this week following the closure of a $250m investment from partner Toyota. This funding supports the firm’s progress toward FAA certification and commercial production of its electric air taxis.

Founder and CEO JoeBen Bevirt commented: “We’re already seeing the benefit of working with Toyota in streamlining manufacturing processes and optimising design.”

Joby remains on track to launch its service in Dubai later this year, but there could always be regulatory setbacks. Meanwhile, flying passengers safely from Manchester Airport to Leeds in just 15 minutes — instead of one hour+ by car or train — is still unproven.

My foolish takeaway

In my experience, reports from short-sellers need to be taken seriously, even though they have a financial incentive to see the stock in question fall. It definitely adds risk to the investment case because Archer hasn’t addressed any of the specific accusations yet.

That said, you can normally gauge how seriously other investors take the claims by the severity of the share price reaction. In Archer’s case, it’s 20% lower than before the report, but still up 27% in the past month and 230% over a year. Heavyweight partners like United Airlines and Stellantis add weight to its technology.

For investors looking to invest in this exciting space, I think Joby is worth a look at $8. But both these stocks are high risk because eVTOLS haven’t been approved by the FAA yet, meaning each firm is pre-revenue and therefore loss-making.

Still, at least recent developments have eased my concern that I backed the wrong horse.

Ben McPoland has positions in Joby Aviation. The Motley Fool UK has no position in any of the shares mentioned. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

More on Investing Articles

Friends and sisters exploring the outdoors together in Cornwall. They are standing with their arms around each other at the coast.
Investing Articles

£503 buys 14 shares in this FTSE 250 stock that returned 23.9% annually for the last 15 years

This FTSE 250 stock has averaged a huge return for 15 years. At today's price, £503 buys 14 shares. But…

Read more »

Black woman using loudspeaker to be heard
Investing Articles

£1,000 buys 25 shares in this FTSE 100 stock that’s returned 29.2% annually for the last 10 years

This FTSE 100 mining stock has returned close to 30% a year for a decade. At 3,995p, £1,000 buys 25…

Read more »

Female student sitting at the steps and using laptop
Investing Articles

Down 47%, is this growth stock finally worth buying in May?

With a £288m order book and a hidden pipeline of defence and nuclear contracts, is this growth stock now too…

Read more »

House models and one with REIT - standing for real estate investment trust - written on it.
Investing Articles

2 REITs yielding 7%+ to consider for passive income in 2026

A REIT backed by the NHS and another backed by Tesco and Sainsbury's with both yielding 7%+. Here's why I'm…

Read more »

Woman riding her old fashioned bicycle along the Beach Esplanade at Aberdeen, Scotland.
Investing Articles

Just 97 shares of this UK dividend stock generate £238 in passive income

A 5.7% yield, £238 in passive income from just 97 shares, and one of the most divisive dividend stocks on…

Read more »

ISA coins
Investing Articles

£10,000 in an ISA generates a second income of…

The London Stock Exchange is home to some of the world's most generous dividends. But how big a second income…

Read more »

Shot of a senior man drinking coffee and looking thoughtfully out of a window
Investing Articles

Expert recommendations: 2 top income stocks yielding 7%+!

With yields of 7.2% and 7.8% respectively, these two income stocks are catching the eyes of institutional analysts. Should investors…

Read more »

Illustration of flames over a black background
Investing Articles

3 top income-focused stocks to buy in May 2026, according to experts

Looking for a stock to buy for income in May 2026? Experts have flagged these three UK dividend shares as…

Read more »