Firefly Aerospace stock surges 13% on $1.3 billion engine deal

Investing.com · Louis Juricic · 2026-11-06 12:40 UTC

Firefly Aerospace stock surges 13% on $1.3 billion engine deal

Investing.com -- Firefly Aerospace shares surged 13% Friday after the company announced a three-year rocket engine agreement worth more than $1.3 billion with AST SpaceMobile, whose shares gained 5%.

The agreement covers the delivery of 36 rocket engines, licensing of the engines’ intellectual property, and engineering support for AST SpaceMobile’s planned heavy-lift rocket. Firefly will supply 27 Miranda engines and nine vacuum-variant Vira engines for AST SpaceMobile’s first three rockets, while granting the company a license to manufacture the engines.

Under the terms of the deal, AST SpaceMobile will pay Firefly more than $1.3 billion in a combination of cash and shares of AST Class A common stock. The stock consideration will be subject to various lock-up periods.

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