Ducommun (DCO) Q4 2025 earnings review
Record Margins and Missile Demand Overshadow Litigation Cash Hit
Ducommun closed out 2025 with accelerating momentum. Revenue growth accelerated to 9.4% YoY, hitting a record $215.8M. The real story, however, is the profitability leap: Adjusted EBITDA margin expanded 370 bps YoY to 17.5%, rapidly closing in on management's 18% VISION 2027 target. While a $101.2M payout for the Guaymas litigation settlement severely skewed GAAP operating cash flows into negative territory (-$74.7M), the underlying business is humming. With a 1.3x book-to-bill ratio driven by a voracious defense sector, the company is well-positioned, even as it waits for Boeing MAX destocking headwinds to finally clear in late 2026.
🐂 Bull Case
Adjusted EBITDA margins hit 17.5%, meaning the 18% target for 2027 is essentially at hand two years early, driven by favorable product mix and higher volume.
A 1.3x book-to-bill ratio was fueled heavily by missile platforms. With long-term agreements in place with RTX and Lockheed, the defense revenue engine is highly visible and accelerating.
🐻 Bear Case
The Guaymas litigation settlement forced a $101.2M cash outflow, driving Q4 GAAP operating cash flow to a negative $74.7M and temporarily weakening the balance sheet.
Boeing 737 MAX weakness continues to offset Airbus growth. Destocking headwinds will act as a persistent drag until the second half of 2026.
⚖️ Verdict: 🟢
Bullish. The one-time cash hit from the litigation settlement clears a major overhang, allowing the market to focus on Ducommun's exceptional margin execution and booming defense backlog.
Key Themes
Missile Platforms Powering Growth
Military and space revenue grew by $14.7M YoY, accelerating off an already strong base. Orders from missile components drove a massive 1.3x book-to-bill ratio, pushing total backlog to $1.2B. Management expects the missile franchise to gain even more strength in 2026 as Department of Defense production ramps materialize alongside key long-term agreements with RTX and Lockheed.
Structural Systems Turnaround
Reversing its previous weakness, the Structural Systems segment delivered a standout quarter. Adjusted operating margin leaped to 17.8% from just 9.2% a year ago. This was driven by higher manufacturing volume, a favorable product mix, and the successful completion of restructuring actions (shutting down the Monrovia performance center) that had previously weighed on profitability.
Commercial Aerospace Destocking is Stubborn
The Commercial Aerospace narrative remains stable but frustrating. While Airbus and in-flight entertainment revenues provided a slight $0.5M YoY lift, this was heavily offset by ongoing lower revenues from Boeing on the 737 MAX. Management indicated that destocking headwinds won't fully ease until the second half of 2026, pushing the anticipated commercial recovery further out.
Litigation Settlement Drains Cash
A reversing trend in cash generation: Q4 GAAP net cash used in operations was a painful $74.7M, completely reversing the $18.4M provided in Q4 2024. This was directly tied to the final cash payouts for the Guaymas fire litigation settlement ($101.2M adjustment). While this removes a major legal overhang, it is a material hit to near-term liquidity.
Tariff Immunity
In a macro environment obsessed with border taxes, Ducommun highlighted its near-total immunity. With over 95% of revenue generated from domestic U.S. facilities and a mostly domestic workforce, management explicitly stated they do not expect tariffs to have any material impact on their financial outlook, mitigating raw material exposure through military duty exemptions and contract pass-throughs.
Other KPIs
Accelerating. Up 11.8% YoY from $107.0M in Q4 2024, continuing to be the workhorse of the top line. This was driven by a $9.4M increase in military and space end-use markets and a surprise $3.3M jump in industrial revenue due to restocking and last-time buys.
Stable. When stripping out the massive one-time $101.2M cash outflow for the litigation settlement, underlying operating cash flow was robust, improving from $18.4M in Q4 2024. The core business continues to convert earnings to cash effectively.
Decelerating profitability impact. GAAP CG&A jumped significantly from $11.8M a year ago, primarily due to the litigation settlement ($7.6M) and higher stock-based compensation ($1.9M). Adjusted CG&A was $14.9M.
Guidance
Stable. Management reiterated their long-term commitment to reaching an 18% Adjusted EBITDA margin. Having hit 17.5% in Q4 2025 (up 370 bps YoY), this target looks increasingly conservative and highly achievable ahead of the 2027 timeline.
Decelerating near-term. Management explicitly guided that commercial aerospace is 'better positioned in the back half of this year [2026] and beyond,' heavily implying that the first half of 2026 will continue to suffer from Boeing inventory destocking headwinds.
Key Questions
Capital Allocation Post-Settlement
With the $101M cash drain from the Guaymas litigation now behind you, how does this alter your M&A timeline and capital allocation priorities for 2026?
Margin Ceiling
Adjusted EBITDA hit 17.5% this quarter, just shy of your 18% 2027 target. Were there any one-time mix benefits in Q4, or should we expect you to raise the VISION 2027 margin target in the near future?
Boeing Visibility
You noted that commercial aerospace headwinds will ease in the 'back half' of 2026. What specific data points or signals from Boeing are you waiting for to confirm that destocking has actually bottomed out?