Firefly (NASDAQ: FLY) revenue jumps 259%, but the operating loss widens

Posted by James Quigley on Nov 11th, 2026

What happened

Firefly Aerospace Inc. (NASDAQ: FLY) reported third-quarter revenue of $110.7 million, up 259% from a year earlier. Backlog reached a record $1.7 billion at quarter end, up from $1.5 billion a quarter earlier. By OptimistFi's calculation, that is a 13.3% gain.

CEO Jason Kim said the quarter reflects "the power of our diversified and vertically-integrated business." He pointed to five Moon missions running in parallel, Alpha Block II moving toward launch and SciTec's work on national security programs.

Key numbers

Metric	Latest	Change	Source
Third-quarter revenue	$110.7 million	from $30.8 million, +259%	SEC 8-K, Exhibit 99.1
Backlog at quarter end (change vs. prior quarter)	$1.7 billion	+13.3%	Calculated from SEC 8-K
Gross margin	22.9%	from 27.6%, -4.7 percentage points	Calculated from SEC 8-K
Net loss	$94.2 million	from $133.4 million, -29.4%	Calculated from SEC 8-K
Free cash flow	-$85.3 million	from -$62.0 million	SEC 8-K, Exhibit 99.1
2026 full-year revenue guidance	$440 million to $450 million		SEC 8-K, Exhibit 99.1

Why it matters

OptimistFi has argued that Firefly must turn scarce demand for space vehicles into repeatable, higher-margin programs before cash burn forces dilution. The quarter supports the demand half of that view and tests the margin and cash half. The reading is mixed.

Guidance sets a high bar for the fourth quarter. Revenue for the nine months ended Sept. 30 was $309.2 million. By OptimistFi's calculation, the full-year range of $440 million to $450 million implies fourth-quarter revenue of $130.8 million to $140.8 million. That is above this quarter's level.

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Margins, losses and cash

Gross profit rose to $25.3 million from $8.49 million a year earlier. Gross margin, the test of the higher-margin case, moved the wrong way. OptimistFi calculates it at 22.9%, against 27.6% in the third quarter of 2025.

Operating expenses rose to $126.9 million from $70.7 million. Research and development was $76.0 million and selling, general and administrative was $50.9 million. Loss from operations widened to $101.6 million from $62.2 million.

Net loss narrowed to $94.2 million from $133.4 million, but the gain came from below the operating line. The year-earlier quarter carried a $42.15 million charge from a change in the value of a warrant liability and a $30.4 million loss on paying off debt early. This quarter booked a $4.04 million warrant gain.

Free cash flow was negative $85.3 million, compared with negative $62.0 million a year earlier. Cash and cash equivalents were $409.3 million at Sept. 30, down from $793.0 million at Dec. 31, 2025. Short-term investments were $125.4 million.

Over nine months, operations used $213.81 million of cash and Firefly repaid $260 million on its revolving credit facility. The cash flow statement also shows $184.11 million of common stock proceeds in that period. Shares outstanding rose to 171.6 million from 159.3 million at year-end.

The contract wins behind the backlog

The release lists wins that put names on the demand. Firefly signed an extension to Lockheed Martin's multi-launch agreement covering up to 25 Alpha launches through 2031 on the Block II configuration. It won a $94 million Space Force contract under the Ground-Based Radar Digitization program. It also won its first Mars award, a $13 million subcontract on NASA JPL's SkyFall mission.

Several headline amounts are ceilings or access rights, not booked revenue. Firefly was onboarded to a $981 million Space Force IDIQ contract to compete for task orders through 2032. It was also onboarded to NASA's $10 billion CLPS 2 initiative to compete for task orders. The release lists contracts valued at more than $1.3 billion with AST SpaceMobile under additional recent highlights.

On execution, the cleanroom expansion lets Firefly assemble and integrate up to 12 lunar landers and orbital vehicles at once. A non-dilutive Texas Space Commission grant funded it. Firefly also began the Miranda engine qualification campaign, with more than 170 hot fire tests completed. It is a key step toward the first Eclipse launch.

What's next

Firefly hosts a conference call on Nov. 10 at 4:00 p.m. CT (5:00 p.m. ET) to discuss the results. The webcast and presentation are on its investor relations website.

The next hard test is the fourth quarter, which has to deliver the revenue the guidance range implies. A gross margin that stops falling and a smaller free cash outflow would strengthen the case. The opposite would sharpen the dilution question when the company next reports.