Firefly Aerospace, Inc. Q3 2026 Earnings Recap

Firefly’s shares rose 12.3% after earnings. The call’s clearest positive was a nondilutive, more-than-$1.3 billion AST SpaceMobile agreement, though revenue is expected to ramp gradually, with engine deliveries beginning in year two and significant investment required.

Key Takeaways

• The AST agreement is valued at more than $1.3 billion: approximately $800 million for engine IP licenses, $250 million for support services, and $250 million for engines supporting AST’s first three flights.
• Firefly will build, test, and deliver 27 Miranda first-stage engines and nine Vira upper-stage engines; it retains ownership of the engine IP while licensing the technology to AST.
• Revenue from the program is expected to start in earnest next year and ramp gradually. Engine deliveries begin in year two, with revenue expected to increase then and continue ramping through year three.
• Firefly expects substantial R&D, capital expenditure, and infrastructure investment tied to the agreement; management says the IP and support-services revenue will steadily expand gross margin.
• The transcript emphasizes that the partnership is intended to complement Firefly’s existing launch business, including Alpha and Eclipse, rather than replace it.