Joby Aviation stock has given up 47.6% over the past year even as the market still prices it as expensive on the broad valuation checks, which leaves investors weighing whether the recent weakness has gone far enough to reflect the risks in its air taxi and defense ambitions.

• Over the past 12 months Joby Aviation shares have fallen 47.6%, which points to a sharp reset in investor expectations after earlier optimism.
• The planned acquisition of defense technology firm Resonant Sciences and progress on electric air taxi operations can support expectations for future revenue, while the capital and execution risks tied to certification, commercialization and defense integration may still weigh on what investors are willing to pay.
• Joby Aviation currently passes 0 of 6 valuation checks, so it does not screen as a clear bargain on the broader metrics even after the share price pullback 0/6.

The stock's next move may depend on whether the current price properly reflects both the recent share price decline and the risks embedded in Joby Aviation's growth plans.

Does Joby Aviation Look Pricey on Book Value?

P/B is often a useful cross check for a company like Joby Aviation because it is still building out its business and current earnings are not the main focus. On this measure, Joby Aviation trades on a P/B of 4.3x compared with an industry average of about 1.8x and a peer group average of about 1.9x.

That gap means investors are paying a substantial premium to the book value of Joby Aviation relative to typical airlines and peers, even after the share price pullback. The planned US$500 million acquisition of Resonant Sciences and the push into electric air taxis help explain why some investors are comfortable paying more than the sector, since they point to a different mix of assets and potential revenue streams than a traditional airline.

On balance, the current 4.3x P/B indicates that Joby Aviation stock appears overvalued when compared with the asset based benchmarks used for the wider airlines industry.

The Joby Aviation Narrative: What Would Justify Today's Price?

Simply Wall St Narratives pick up where the Joby Aviation valuation puzzle leaves off. They spell out what growth, margins and earnings path would need to hold for the stock to be worth materially more or less than today’s price, using Joby Aviation’s current share price as the anchor. Each narrative ties a fair value estimate to a specific mix of potential catalysts and risks so you can track which story seems to be unfolding over time on the Community page.

Community views on Joby Aviation sit at opposite ends of the spectrum, with one camp seeing deep upside potential and the other focused on execution risk and dilution.

Bull case: 57% undervalued

"Partnerships with Toyota, L3Harris, Uber and Blade, combined with expanding manufacturing in California and Ohio, enable production scale and dual use platforms…"

Bear case: 29% overvalued

"The push to ramp manufacturing to a level that management says has never been seen in aviation, including scaling with Toyota and new facilities in Ohio, could strain execution…"

Do you think there's more to the story for Joby Aviation? Head over to our Community to see what others are saying!

The Bottom Line

Joby Aviation still screens as overvalued on broad market multiples, even after a sharp 1 year share price decline. The market is clearly paying up for the prospect of air taxi and defense revenue rather than the current asset base. For you, the key question is whether Joby Aviation can convert its partnerships, planned acquisition and certification work into a business that eventually matches that premium. The crux of the bull versus bear debate is whether execution on scaling, regulation and capital needs keeps pace with the expectations already embedded in the valuation.

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.