Firefly Aerospace Inc. · FLY · 2 MIN READ

Firefly Aerospace Gets $1.3B Rocket Contract, Stock Up 29%

Firefly Aerospace secured a $1.3bn contract to supply 36 rocket engines to AST SpaceMobile, triggering a 29% single-session surge and a Jefferies upgrade to $35, though the company still burns $167mn

Firefly Aerospace Gets $1.3B Rocket Contract, Stock Up 29%

Firefly Aerospace Inc. (FLY) jumped 29% after landing a $1.3bn contract to supply 36 rocket engines to AST SpaceMobile.

Firefly Aerospace Inc. (FLY) — stock analysis
Image: Basis Report
The numbers
  • Shares surged ~29% on the session; deal calls for 36 engines at a total value exceeding $1.3bn
  • Stock at $20.76 vs. a new Jefferies target of $35, implying 69% further upside, against trailing EPS of $-0.26 and $-167mn FCF
  • Next catalyst: first engine delivery milestone under the AST agreement
FLY 90-day price and volume, Aug 10 to Nov 6$15.18$21.18$27.18merger_acquisition$20.76Aug 10Sep 23Nov 6
FLY 90-day price and volume, Aug 10 to Nov 6. Chart: Basis Report · market data at publish.

$36mn Per Engine: The Revenue Floor FLY Has Never Had

Divide $1.3bn by 36 engines and you get roughly $36mn per unit, a per-contract revenue floor that resets the valuation debate. FLY posted $287mn in TTM revenue on a 657% YoY surge, signaling genuine commercial traction. But the company had never disclosed a single anchor customer of this scale, which is exactly what the market needed before assigning a growth multiple. The contract provides what analysts call revenue visibility, the kind that lets a discounted cash flow model converge instead of blow up.

Not a SpaceX Rival: A Supplier to the Next Tier

Headlines calling FLY a "SpaceX rival" are loose framing. Firefly isn't competing for SpaceX's contracts. It's supplying engines to AST SpaceMobile, which is building its own launch vehicle to support a space-based cellular broadband constellation, a different segment entirely. That distinction matters: it makes FLY's position structural rather than competitive. If the commercial space sector grows, Firefly grows with it regardless of what SpaceX does. The angle the wire missed is that this is an infrastructure play on the next tier of operators, not a dogfight.

13% Short Float Inflated the First-Day Pop

With 13.3% of the float short, a portion of that move is mechanical: forced covering, not fresh institutional demand. The spike is visible in the chart. The cleaner signal of genuine re-rating will be whether FLY holds its post-announcement level over the next few sessions. Jefferies' $35 target was set at roughly $20.76, implying 69% upside remains even after the squeeze. If shorts have mostly exited, that overhang clears; if they haven't, the next piece of negative news hits a crowded exit at once.

$167mn Annual Cash Burn Is the Number That Proves Jefferies Wrong

FLY's free cash flow is $-167mn annually, and forward P/E runs negative because the company is expected to stay unprofitable. The contract is potential revenue, but aerospace deals pay on milestones, not signatures. Miss a delivery window and cash keeps burning while the revenue waits. The metric to track next quarter is not EPS but progress against the AST engine program's delivery schedule. If the first milestone slips, cash burn becomes the headline again. Run the numbers on what a delayed payment schedule does to FLY's terminal value at different discount rates with the DCF calculator.

For a full fundamental breakdown of Firefly Aerospace, including cash runway, leverage ratios, and comparable launch providers, generate a Basis Report on FLY.

Basis Report is independent research for informational purposes. It is not investment advice and not a recommendation to buy or sell any security.

Firefly Aerospace secured a $1.3B deal with AST SpaceMobile to build rockets, positioning it as a SpaceX rival and sending shares up nearly 29%.
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Firefly Aerospace Inc.
Firefly Aerospace Gets $1.3B Rocket Contract, Stock Up 29%
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