Is Archer Aviation Stock a Buy Before Its Q3 Earnings Report?

Archer expects a Q3 adjusted EBITDA loss of $170 million to $200 million, after reporting a $263 million net loss in Q2; it ended June with about $1.6 billion in cash and short-term investments. Its planned acquisition of three Boeing subsidiaries could add more than $200 million in annual revenue through Insitu, but the deal has not closed and would give Boeing approximately 19.75% of Archer's pre-closing share count, subject to adjustments. The article says the certification timeline remains unknown and advises against rushing to buy ahead of earnings.

Analysis

The key valuation question is whether investors should keep pricing ACHR primarily as a certification-dependent eVTOL option or begin valuing it as a mixed aviation-and-defense business. Insitu could diversify the revenue base, but revenue is not earnings or cash flow: margins, contract durability, working-capital needs, and the acquisition’s final terms matter more than the headline revenue figure. Boeing’s equity consideration also creates dilution; any additional share overhang depends on resale restrictions and registration terms that are not provided.

Near term, the Q3 report is unlikely to resolve the central certification uncertainty. Watch whether the expected adjusted EBITDA loss range is maintained or worsens, and whether management provides verifiable certification milestones and deal-closing detail. Over 1–3 months, closing conditions, consideration adjustments, and Insitu’s contribution profile could drive a re-rating. Over 6–18 months, execution risk shifts to integrating businesses with different customers and operating cycles while funding aircraft development. A defense revenue base may help diversify the story, but does not itself validate commercial eVTOL economics.

Contrarian angle: the acquisition could make ACHR look less like a pre-revenue single-product bet, while dilution and certification delays may already dominate sentiment. Conversely, treating Insitu’s revenue as a direct substitute for certification progress would be premature. JOBY is a possible relative-value hedge given the article’s stated certification comparison, but ACHR’s acquisition could quickly invalidate a simple execution-based spread. Falsifiers include a worsened loss outlook, delayed or adverse deal terms, or concrete certification progress that narrows the perceived gap.

Key Decisions for Investors

• Avoid initiating a large directional ACHR position immediately ahead of earnings; use the report to assess loss guidance, certification milestones, deal status, and the fully diluted share count rather than trading on the announced revenue contribution.
• Watch for a post-earnings relative-value setup: consider a small long JOBY / short ACHR pair only if ACHR offers no measurable certification progress and the deal’s dilution or integration terms disappoint. Reassess or exit if ACHR reports credible milestones or the acquisition terms materially improve its risk/reward.
• Before assigning value to Insitu, verify the acquired business’s profitability, cash conversion, contract concentration and expected closing date, plus Boeing-share resale restrictions. Revenue alone is not enough to underwrite a durable valuation uplift.
• Treat a materially worse-than-guided adjusted EBITDA loss or a certification delay as a negative catalyst; a firm closing timeline, transparent share-count impact and evidence of Insitu earnings contribution would weaken the cautious thesis.