Joby's Production Bottleneck Matters More Than Its Air-Taxi Demand

Joby Aviation's demand story is easier to tell than its production story. Management says planned launch markets could absorb every aircraft it can build, while Barclays argues that the factory may be the real limit on how much of that demand shareholders can monetize.

The bank assumed coverage with an Underweight rating and cut its target to $4 from $6. Its concern is not that electric vertical takeoff aircraft will lack a market. It is that competition will prevent a winner-take-all outcome and Joby's manufacturing capacity may remain too small to justify its valuation.

Joby's second-quarter disclosures show both progress and scale risk. The company had five aircraft flying and 12 more in production, with plans to deliver two additional aircraft in 2026. Blade, the passenger business acquired earlier, generated $36.2 million of the quarter's $38.64 million of revenue. That means current sales are still mostly carried by a conventional aviation service rather than by the aircraft platform investors are underwriting.

Liquidity is substantial but commitments are growing. Joby reported $2.3 billion of cash and short-term investments at June 30. The source analysis identified roughly $980 million across planned second-half cash use, the proposed $450 million Resonant Sciences acquisition and a $116.9 million jury verdict that Joby is challenging. A further $250 million Toyota investment is expected around year-end or early 2027, subject to remaining arrangements.

The key operating evidence is production yield. Management said four aircraft entered the production queue during the quarter and that nonconformance rates fell almost 40% in the first half. Those are constructive indicators, but the base remains small.

Joby's shares can recover if certification, manufacturing and first-passenger milestones arrive together. They can also require more capital if output slips while cash commitments continue. Investors should focus less on the size of the theoretical air-taxi market and more on aircraft completed, certification progress, cash use and whether the Toyota partnership converts into repeatable volume.