Boeing

Efficient scale, extremely high capital barriers, certification complexity and fleet commonality give the franchise durable structural advantages in large commercial aircraft and defense platforms.

Airline switching costs are meaningful due to pilot training, spares pools and maintenance systems, and the installed base feeds a profitable services business. However, the moat has been dented by quality lapses, reputational damage and regulatory oversight.

Airbus has consolidated share in the most attractive narrow‑body segment with the A321neo, and timing risk around MAX‑7/‑10 and 777X weakens Boeing’s negotiating leverage. Backlog remains formidable at roughly 619 billion dollars and 5,900+ jetliners, which underpins long‑term demand, but realization hinges on execution and certification.

On balance we view the moat as present but impaired.