Joby Stock Defies Gravity: Vertiport News Justifies Sky-High Valuation
Joby Aviation Stock: Why It’s Down 48% But Still Looks Expensive
An ELI5 guide to understanding Joby Aviation’s valuation puzzle
What Happened to Joby Aviation’s Stock?
Imagine you bought a ticket for a roller coaster that only goes down. That’s roughly what Joby Aviation (NYSE: JOBY) shareholders have experienced over the past year.
Here’s the scorecard:
- Stock price fell 48.1% over the last 12 months
- Recent short-term gains exist but don’t erase the longer-term pain
- Company is making progress on vertiports (flying taxi landing pads), manufacturing, and FAA certification
- Big question: Is the stock now a bargain, or still too expensive?
Important Point: A stock dropping 48% doesn’t automatically make it "cheap." Price and value are two different things.
Why Valuation Still Matters (Even After a Big Drop)
Think of buying a stock like buying a used car. Just because the seller dropped the price from $50,000 to $26,000 doesn’t mean it’s a good deal — if the car is actually only worth $20,000.
Simply Wall St runs 6 different "value checks" on every stock. These are like inspection points on that used car. Joby Aviation passed 0 out of 6 checks.
What does "0 out of 6" mean?
- The stock doesn’t screen as a clear bargain on any of the standard value tests
- Investors are still paying a premium price for what the company owns and earns today
- The market is pricing in future hopes, not current reality
Understanding the Price-to-Book Ratio (ELI5 Edition)
What is "Book Value"?
Imagine Joby Aviation sold everything it owns (factories, equipment, cash, patents) and paid off all its debts. The money left over for shareholders = Book Value.
What is P/B Ratio?
Price-to-Book (P/B) = Stock Price ÷ Book Value per Share
It tells you: "How many dollars am I paying for each dollar of the company’s net assets?"
Joby’s Numbers vs. The Industry
| Metric | Joby Aviation | Airlines Industry Average |
|---|---|---|
| P/B Ratio | 4.8x | 1.9x |
Important Point: Joby trades at more than double the industry average P/B. You’re paying $4.80 for every $1.00 of book value, while competitors cost ~$1.90 for the same $1.00.
Why use P/B for Joby?
- Joby is building assets (factories, aircraft, vertiports) not earning mature profits yet
- Traditional P/E (Price-to-Earnings) doesn’t work well for pre-revenue companies
- P/B lets us compare "what you pay" vs. "what the company has built so far"
The Two Sides of the Story: Bull vs Bear
The Simply Wall St community is sharply split. Same milestones, totally different conclusions.
Bull Case: "52% Undervalued"
Core Argument: Partnerships and manufacturing scale justify a much higher price.
Key Drivers:
- Powerful partnerships — Toyota, L3Harris, Uber, Blade
- Manufacturing expansion — California + Ohio facilities
- Dual-use platforms — Commercial + defense applications
- Production scale — Moving from prototype to volume
Read the full Bull Case to see why optimists think the stock is undervalued.
Bear Case: "44% Overvalued"
Core Argument: Vertical integration concentrates too much risk in one company.
Key Risks:
- All eggs in one basket — Design, manufacturing, operations, autonomy, AND propulsion all done in-house
- Execution risk — Any delay in certification, infrastructure, or rollout hurts the whole chain
- Capital intensity — Burning cash to build everything simultaneously
- No safety net — No partner to share the burden if things go wrong
Read the full Bear Case to see why skeptics think the stock is overvalued.
What This Means for You: The Bottom Line
The Valuation Puzzle in Plain English
| Factor | Status |
|---|---|
| 1-Year Return | -48.1% (lagging peers) |
| Value Score | 0/6 (not a bargain on traditional metrics) |
| P/B Ratio | 4.8x vs 1.9x industry (expensive on assets) |
| Progress | Real milestones: vertiports, manufacturing, FAA steps |
| Debate | Can milestones → scalable profits fast enough? |
The Core Question Every Investor Must Answer:
"Does the current price give me enough margin of safety for all the things that could go wrong?"
Right now, the market says: "We’ll pay a premium for the electric air taxi dream."
The data says: "That premium leaves little room for execution slip-ups."
Summary
- Joby stock dropped 48.1% in the last year — painful for holders
- But it still fails all 6 value checks — not "cheap" by standard measures
- P/B ratio of 4.8x is 2.5x the industry average — paying a big premium per dollar of assets
- Community is split: Bulls see partnership power; Bears see concentrated risk
- The verdict: Stock screens expensive on traditional multiples. Whether it’s justified depends entirely on execution speed and scale from here.
Disclaimer: This article is for educational purposes only. It reflects Simply Wall St’s analysis based on historical data and analyst forecasts. It is not financial advice. Always do your own research or consult a financial advisor before investing.
FAQ
If the stock dropped 48%, why isn’t it a bargain?
Because "price dropped" ≠ "value dropped more." Imagine a $100 bill on sale for $52 — sounds great! But if the bill is actually a fake worth $0, $52 is still too expensive. Valuation checks measure what the business is actually worth today, not just where the stock price used to be.
What are "vertiports" and why do they matter?
Vertiports are like mini-airports for flying taxis (eVTOLs) — landing pads, charging stations, passenger terminals. Joby needs a network of these to run its service. Partnerships to build them = progress toward real revenue. But building them takes time, money, and permits.
Why does Joby have a 0/6 value score?
The 6 checks look at things like: P/E ratio, P/B ratio, dividend yield, cash flow, earnings growth, and peer comparison. Joby is pre-revenue and pre-profit, so it fails checks that require earnings or dividends. The score means: "By traditional value investing rules, this doesn’t look like a bargain."
What does "vertical integration" mean in the Bear Case?
It means Joby does everything itself: designs the aircraft, builds the factories, manufactures the parts, operates the service, develops the autonomy software, and works on propulsion. Most companies specialize in one piece. Doing it all = more control but way more risk and cost if anything goes wrong.
Should I buy Joby stock now?
I can’t answer that — and neither can this article. What we can say: The stock carries a high valuation premium for a company that hasn’t yet launched commercial service. If you believe they’ll execute flawlessly and scale fast, the premium might be justified. If you worry about delays, regulation, or competition, the downside risk is real. Decide based on your own risk tolerance and research.
