Joby Aviation: Bull vs. Bear

Joby Aviation conducted eVTOL demonstration flights in the Dallas-Fort Worth region in September while advancing through the fifth and final phase of FAA type certification. The company acquired Blade Urban Air Mobility for $125 million, adding a business that generated $36.2 million of Q2 revenue, but reported a $245 million quarterly net loss and expects $385 million-$415 million of second-half cash burn. With a cumulative deficit of $3.1 billion, only 12 aircraft in production, and two deliveries expected in 2026, the investment case remains highly speculative despite a projected $1 trillion urban-air-mobility market by 2040.

Analysis

The relevant valuation question for JOBY is no longer whether an eVTOL can fly a demonstration route, but whether certification converts into a financeable production ramp before its cash runway becomes the binding constraint. A low initial delivery cadence implies fixed manufacturing, certification, and operating infrastructure will be spread over very few aircraft for multiple years; even a favorable regulatory milestone is therefore unlikely to establish near-term unit economics. The next 1-3 months are principally a liquidity and milestone-trading setup, not a durable revenue re-rating.

ACHR is the clearest relative beneficiary if the market increasingly prizes capital efficiency over technical leadership. Contract manufacturing can defer plant capex and reduce execution risk, although it substitutes supplier concentration and partner economics for JOBY's vertically integrated control. Blade-derived revenue should not be capitalized as evidence of eVTOL demand: it is primarily a route-access, dispatch, and customer-acquisition asset whose strategic value depends on eventual conversion to electric aircraft operations.

Consensus appears too focused on binary FAA timing and too little on post-certification working-capital requirements. The downside tail is a dilutive capital raise before meaningful aircraft deliveries, which can compress equity value even if certification progresses; the upside tail is a credible production-financing partner or binding commercial route economics, rather than another demonstration. A broad risk-on move in speculative growth can overwhelm fundamentals over days, but the 6-18 month relative return should be governed by cash burn, production yield, and financing terms.

Key Decisions for Investors

• Maintain no core long in JOBY pending disclosure of cash runway, committed production financing, and a delivery schedule that supports utilization; treat any certification-related spike as tactical only. Thesis fails positively if management secures non-dilutive manufacturing capital and raises forward delivery guidance without increasing burn.
• Express relative capital-efficiency preference via long ACHR / short JOBY over a 3-6 month horizon, sized beta-neutral. Target a 15-25% relative move; cover if JOBY reports materially lower-than-guided cash use, signs a scaled manufacturing partner, or ACHR's production partner economics deteriorate.
• For event exposure, use defined-risk JOBY call spreads only around independently verifiable FAA certification milestones, not pilot-program publicity. Limit premium at risk to 1-2% of NAV allocation because a successful certification event may still be offset by financing expectations.
• Set a financing alert: accelerating quarterly cash use, an equity shelf/ATM expansion, or runway below roughly 12 months should trigger a JOBY short review. Conversely, defer bearish exposure during broad small-cap/speculative-growth squeezes, where beta rather than company fundamentals will dominate.