Huntington Ingalls Industries, Inc. (HII) | The Buildout — AI Infrastructure
The Verdict
HII is America's largest military shipbuilder. Ingalls builds non-nuclear amphibious ships, surface combatants, and national security cutters in Mississippi. Newport News builds nuclear-powered aircraft carriers and submarines in Virginia. Mission Technologies provides C5ISR, cyber, unmanned autonomous systems, and training. The AI-infrastructure connection is narrow: autonomy software, UUVs, and unmanned surface vessels sit inside Mission Technologies. The core shipbuilding business has essentially no direct AI-demand exposure.
| Market Cap | — |
| Revenue (TTM) | $13.2B |
| Revenue Growth | +14.0% |
| EBITDA Margin (TTM) | 7.6% |
| Net Debt | $2.9B |
| Earnings Beats | 5 of 7 |
| P/E (TTM) | — |
| EV/EBITDA (TTM) | — |
What We Like
- Four consecutive quarters of double-digit shipbuilding growth; Q2 FY2026 shipbuilding revenue was $2.7B, up 15.7% YoY.
- Submarine agreement reached: $76.6B of contract modifications, with approximately $25B to Newport News and about $5.5B on Columbia.
- FY2026 shipbuilding guidance raised to $10.2–$10.4B revenue and 6.0%–6.5% margin, with the lower bound raised from 5.5%.
- Backlog of $54B at March 31, 2026, with about 40% of remaining performance obligations expected to convert through 2027.
- Throughput and labor momentum: 12% year-to-date throughput improvement toward a 15% full-year target, with over 3,500 shipbuilders hired year-to-date.
What We’re Watching
- LHA 8 test-program challenges continue to require EAC adjustments; delivery is still planned for 2027.
- Full-year free cash flow of $500–$600M is heavily back-half loaded; Q1 was negative $464M, Q2 missed forecast, and Q3 is guided to about $100M.
- Mission Technologies Q3 operating margin is guided to about 4%, down from Q2's 7.2%, on deliberate unmanned investment.
- CVN-79 acceptance trials are set to begin within a week or two of the July 30 call; problems would pressure Newport News margin and cash.
The thesis is strengthening on demand and production: the submarine package closed, FY2026 shipbuilding guidance was raised, and shipbuilding growth stayed double-digit for a fourth straight quarter. The unresolved portion is timing and cash conversion, not order flow. The open question is whether HII can turn the backlog and new submarine contracts into five delivered ships over the next 12 months and meet the back-loaded full-year free cash flow target.
Earnings Beat
Q2 FY2026 revenue was $3.4B, up 10.9% year over year, with gross margin of 13.2%. The standout was shipbuilding revenue of $2.7B, up 15.7% year over year—the fourth consecutive double-digit shipbuilding quarter.
| Metric | Q2 FY2026 | Q1 FY2026 | Q2 FY2025 | YoY |
|---|---|---|---|---|
| Revenue | $3.4B | $3.1B | $3.1B | +10.9% |
| Gross margin | 13.2% | 13.2% | 12.8% | +40bps |
| EBITDA | $289M | $231M | $237M | +21.9% |
| EPS | $5.27 | $3.79 | $3.86 | +36.5% |
| Shipbuilding revenue | $2.7B | $2.4B | n/a | +15.7% YoY |
an agreement has been reached on VCS Block VI and the next Columbia submarine contracts.— Chris Kastner, CEO, July 30, 2026
Management tone: Management's tone shifted from steady but guarded on the Q1 call to markedly more confident on the Q2 call. The change followed the submarine agreement, the raised shipbuilding guide, and management's statement that HII is running out in front of its 6% medium-term guide.
Management Guidance
For FY2026, management raised shipbuilding revenue guidance to $10.2–$10.4B and shipbuilding margin to 6.0%–6.5%, with the lower bound raised from 5.5%. Mission Technologies revenue was reaffirmed at $3.0–$3.2B and operating margin at approximately 5%; free cash flow was reaffirmed, and Mission Technologies EBITDA margin was reaffirmed at 8.4%–8.6%. Q3 guidance calls for shipbuilding revenue of about $2.6B, shipbuilding margin similar to Q2's 6.3%, Mission Technologies revenue similar to $760M, a Mission Technologies operating margin of about 4%, and free cash flow of about $100M.
Trajectory
The audited trailing quarters are uneven: revenue moved from $3,192M to $3,476M to $3,099M to $3,418M across the last four quarters, which the code-computed trajectory reads as decelerating. The margin picture is better—gross margin is stable and EBITDA margin expanded to 8.5% in Q2. The driver is shipbuilding volume, with Mission Technologies revenue down 3.9% in Q2 on a prior-year $45M non-recurring contract resolution comparison.
The Model
The locked model projection is $12,850M revenue and $1,015M EBITDA in FY+1, a 7.9% margin, rising to $13,750M revenue and $1,210M EBITDA in FY+2, an 8.8% margin. The near-term is anchored on shipbuilding growth and stable Mission Technologies revenue; the FY+2 step-up reflects margin expansion as the model carries higher shipbuilding volume into improved EBITDA conversion.
| Metric | FY2025 | Next FY (E) | Following FY (E) |
|---|---|---|---|
| Revenue | $12.5B | $12.8B | $13.8B |
| YoY Growth | — | +2.9% | +7.0% |
| EBITDA | $962M | $1.0B | $1.2B |
| EBITDA Margin | 7.7% | 7.9% | 8.8% |
Projections are the median of 5 independent model runs. The model’s revenue sits 0.5% below analyst consensus.
For FY2026, management raised shipbuilding revenue guidance to $10.2–$10.4B and shipbuilding margin to 6.0%–6.5%, with the lower bound raised from 5.5%. Mission Technologies revenue was reaffirmed at $3.0–$3.2B and operating margin at approximately 5%; free cash flow was reaffirmed, and Mission Technologies EBITDA margin was reaffirmed at 8.4%–8.6%. Q3 guidance calls for shipbuilding revenue of about $2.6B, shipbuilding margin similar to Q2's 6.3%, Mission Technologies revenue similar to $760M, a Mission Technologies operating margin of about 4%, and free cash flow of about $100M.
What Could Go Right — and Wrong
- Clean execution of the five-ship delivery plan over the next 12 months converts the raised guide into completed deliveries.
- Submarine incentive capture after Q3 definitization lifts shipbuilding margin toward the top of the 6.0%–6.5% range.
- Ingalls labor inflection accelerates H2 throughput after the March collective bargaining agreement.
- Frigate and battleship programs enter guidance, raising the medium-term shipbuilding outlook.
- MUSV/ROMULUS September 2026 at-sea testing succeeds and opens a path to production orders.
- CVN-79 acceptance trials or LHA 8 test-program deterioration create new EAC charges and delay delivery.
- Q4 free cash flow disappoints and the full-year $500–$600M target is missed.
- Underlying aircraft-carrier performance weakness persists despite favorable Q2 adjustments.
- Labor competition or sole-source component disruptions bind throughput and cost.
- Mission Technologies unmanned investment compresses margins for several quarters without material revenue.
Looking Ahead
The next 12 months are dominated by delivery and cash execution. Submarine contract definitization is contemplated in Q3 2026; CVN-79 acceptance trials start near-term; SSN-800 and LPD-30 deliveries are expected later in 2026; and LHA 8 test-readiness remains ahead of a 2027 delivery. In September 2026, MUSV/ROMULUS at-sea testing tests whether the unmanned business can move from pipeline to production.
- 1–2 weeks from Jul 30, 2026CVN-79 acceptance trials — Successful acceptance trials; preliminary acceptance later in 2026.
- Q3 2026Submarine contract definitization — Formal contract booking and any Q3 incentive recognition.
- September 2026MUSV/ROMULUS at-sea testing — Tests path from USV prototype to potential production contract.
- Later 2026SSN-800 Arkansas delivery — Critical milestones in latter part of summer support delivery.
- End of 2026LPD-30 Harrisburg delivery — Delivery expected toward end of 2026.
- Q4 2026Free cash flow conversion — Q4 must carry most of the $500–$600M full-year target.
Financials
Annual Summary
| Metric | FY2024 | FY2025 | TTM | YoY |
|---|---|---|---|---|
| Revenue | $11.5B | $12.5B | $13.2B | +8.2% |
| Gross Margin | 12.6% | 12.8% | 12.6% | +20bps |
| EBITDA | $861M | $962M | $9.8B | +11.7% |
| EBITDA Margin | 7.5% | 7.7% | 7.6% | +24bps |
| Net Income | $550M | $605M | $661M | +10.0% |
| Free Cash Flow | $279M | $1.1B | $4.9B | — |
| Net Cash | — | — | — | — |
Key Ratios (Trailing)
- P/E TTM—
- EV/EBITDA TTM—
- EV/Revenue TTM—
- Price/FCF TTM—
- Gross Margin (TTM)12.6%
- EBITDA Margin (TTM)7.6%
- Net Margin (TTM)5.0%
- ROIC6.6%
- FCF Conversion37.4%
- SBC / Revenue0.4%
The Company
HII is America's largest military shipbuilder. Ingalls builds non-nuclear amphibious assault ships, surface combatants, and national security cutters from Pascagoula, Mississippi. Newport News builds nuclear-powered aircraft carriers and submarines in Virginia. Mission Technologies supplies C5ISR, cyber, unmanned autonomous systems, and nuclear/environmental joint ventures. About 81% of FY2025 revenue came from the U.S. Navy.
The company operates two government-oriented yards: Ingalls sits on about 800 acres along the Pascagoula River, and Newport News occupies roughly 550 acres near the James River. A leased Charleston, South Carolina site adds more than 480,000 square feet of manufacturing space. HII uses distributed shipbuilding—outsourcing blocks and units to partners—and is investing in robotics and welding automation to raise throughput.
Business Segments
Competitive Landscape
HII's 10-K says Newport News and Ingalls compete primarily with General Dynamics and, for certain non-nuclear shipbuilding programs, smaller shipyards. At the same time, HII has a teaming agreement with General Dynamics' Electric Boat division to build Virginia-class submarines. The 10-K also notes that some components and parts may have only one supplier.
- General DynamicsPrimary competitor at Newport News and Ingalls; parent of Electric Boat and teaming partner on Virginia-class submarines.
- Electric BoatGeneral Dynamics division; teaming partner for Virginia-class submarine construction.
- Smaller shipyardsNamed in the 10-K as competitors for certain non-nuclear shipbuilding programs.
Supply Chain
HII is a demand anchor for U.S. naval shipbuilding. It relies on U.S. Government-approved supply sources for materials and components across the submarine and shipbuilding base.
More on HII: Earnings recap