AEVEX Corp. (NYSE: $AVEX ( ▲ 4.57% )) is a Solana Beach, California-headquartered defense contractor controlled by private equity firm Madison Dearborn Partners, LLC (MDP), combining manned/unmanned airborne intelligence, surveillance, and reconnaissance (ISR) services with high-volume one-way attack (OWA) loitering munitions and unmanned surface vessels (USVs).

If you've followed drone aid to Ukraine, you've heard of Phoenix Ghost, the "mystery drone" the Pentagon announced in April 2022 without saying much about who built it. The builder was AEVEX, a company most of the defense world knew as an aircraft-modification and ISR contractor.

That program turned AEVEX into a high-volume one-way-attack drone supplier, with more than 6,200 uncrewed systems delivered by its own count. It also turned a private-equity portfolio company into an NYSE listing. AEVEX went public at $20 a share in April 2026. By early June it was trading in the high $20s and recently traded as low as $9.

The usual way to read that drop is "defense tech bubble." The public record supports a more specific story. Almost all of AEVEX's growth came through one Air Force office, under a contracting exception built for urgency, to support one war. The question investors are now pricing is whether any of that position carries over to competitive programs where the exception doesn't apply.

Below the Fold: the contracts behind the revenue, who got paid in the IPO and the follow-on, why the BlackSea acquisition changed the risk, and what Wednesday's third-quarter numbers did and didn't answer.