Archer Aviation vs. Joby Aviation: This 1 eVTOL Stock Has The Better Balance Sheet

Archer Aviation was judged to have the stronger current balance sheet, with $1.9 billion of shareholders' equity across 770 million shares, versus Joby's $1.8 billion across 986.5 million shares. Joby held more gross liquidity at $2.3 billion but also carried $701.9 million of long-term debt, while Archer held $1.6 billion of cash and short-term investments against only $80.1 million of debt; net liquidity was nearly equal at $1.56 billion for Joby and $1.52 billion for Archer. The comparison could shift materially as Joby plans a $500 million Resonant Sciences acquisition and Archer will issue shares equal to 19.75% of its Class A stock to acquire Boeing units Wisk Aero, Insitu, and SkyGrid. Both companies remain exposed to significant execution risk because neither has FAA approval for commercial eVTOL operations.

Analysis

The relevant valuation variable is not book value per share but financing endurance through certification, production ramp, and initial route deployment. Both ACHR and JOBY remain pre-scale cash-burn stories, so a modest difference in net cash can be overwhelmed by one incremental year of engineering, FAA delay, or manufacturing capex. JOBY's new leverage raises fixed-claim risk, but debt is preferable to equity dilution if its acquired defense revenue converts into recurring cash flow and helps absorb factory overhead.

ACHR's stock-funded transaction is more consequential than its headline asset value: the dilution effectively prices the acquired businesses at ACHR's future certification multiple. If the acquired Boeing assets create a credible pathway to defense, autonomy, and air-traffic-management revenue before passenger operations, ACHR's multiple can rerate; if they primarily add integration cost and non-core capex, the transaction converts a clean eVTOL option into a conglomerate discount. BA gains asymmetric upside through its equity exposure while reducing direct funding needs, but its economic benefit is immaterial relative to its commercial-aircraft execution risk.

Near term, FAA milestone timing and transaction closing terms—not balance-sheet snapshots—will drive the relative spread. Over 1-3 months, the key catalyst is disclosure of pro forma burn, purchase-accounting adjustments, earn-outs, and whether acquired revenue carries positive gross margin. Over 6-18 months, the winner will be the company demonstrating certified-aircraft production economics, customer deposits converting to binding orders, and non-dilutive government/defense funding. Consensus likely underweights that defense revenue may lower funding risk but does not validate the unit economics of urban air mobility.

Key Decisions for Investors

• Maintain no unhedged core position in ACHR or JOBY ahead of verifiable FAA certification milestones; binary regulatory outcomes and likely capital raises dominate reported net-asset differences.
• Establish a small relative-value long ACHR / short JOBY position only after ACHR files pro forma financials for the Boeing asset transaction. Target a 15-25% relative move over 3-6 months if acquired revenue is retained with manageable cash burn; exit if dilution exceeds the announced ownership transfer, integration guidance implies material incremental burn, or JOBY demonstrates contracted defense backlog with positive gross margin.
• For event-driven exposure, favor defined-risk ACHR call spreads dated 6-12 months out rather than common equity if transaction-close and FAA milestones are scheduled within that window. The thesis is upside from strategic validation; maximum loss must be limited because certification slippage can compress both equities simultaneously.
• Monitor BA only as a read-through rather than a primary trade: a disclosed fair-value gain, monetization plan, or expanded industrial partnership could modestly support sentiment, but it is unlikely to move BA earnings absent a substantially larger aerospace strategy commitment.
• Set alerts on quarterly operating cash burn, restricted versus unrestricted cash, customer-deposit conversion, and any FAA schedule revision. A burn-rate increase without offsetting defense cash generation is the clearest falsifier for either eVTOL long thesis.