Gabelli spotlights a defense “capex wave” stretching from prime contractors to hidden suppliers

Veteran investor Mario Gabelli is making a clear call: the U.S. defense industrial base is entering a multi-year buildout that won’t just benefit the headline names. His view is that the next leg of growth could come from the entire missile supply chain—from rocket motors and seeker heads to less glamorous but mission-critical parts like casings and nose cones.

In the public markets, that translates into a “basket” approach: own the giants that win the big contracts, but don’t ignore the smaller firms that make specialized components. In the discussion covered by 24/7 Wall St., Gabelli’s list includes Lockheed Martin, RTX, and Boeing—and, more unusually, Albany International, a lesser-known supplier with a composites business tied to modern aircraft engines and defense programs.

What Gabelli is really betting on: “contract assurance” unlocking capacity expansion

Defense is not like consumer tech, retail, or even most industrial businesses. In many major programs, the U.S. government is effectively the main customer, and that customer requires strict compliance, long lead times, and heavy up-front investment. Companies don’t pour billions into new equipment and facilities unless they believe the orders will be there for years.

Gabelli’s key idea is that the Pentagon’s need to replenish and expand stockpiles—especially across missiles and munitions—creates the confidence the sector needs to commit to production growth. When that happens, capital spending doesn’t stay at the top; it flows down to the companies that make the parts that primes can’t simply “wish into existence.”

The “primes”: why the biggest contractors are already in motion

Gabelli’s first three names are well-known for a reason. These companies sit closest to the defense budget, handle complex system integration, and often run programs where switching suppliers is costly and slow. That can lead to durable backlogs—an important signal when investors are trying to separate a short-term headline pop from a long-term production cycle.

1) Lockheed Martin: backlog strength and missile profitability improvement

Lockheed Martin entered 2026 pointing to a record backlog of $194 billion, underscoring how much contracted work is already in the pipeline.

From the perspective of the “missile supply chain” thesis, one detail stands out: Lockheed’s Missiles and Fire Control performance improved sharply versus the prior year’s period, signaling that execution and program mix can change quickly when demand and production stabilize.

Lockheed’s story also blends two themes investors tend to like:

• Visibility via a large backlog (less guessing about next quarter’s sales), and
• Operational leverage when production ramps and fixed costs spread across more units.

Of course, the flip side is that defense primes can face program risk, regulatory constraints, and cost pressures. But in Gabelli’s framework, the scale and the backlog help justify the capex needed for higher output.

2) RTX: a huge backlog with a clearly defined defense component

RTX (the parent of Raytheon, Pratt & Whitney, and Collins Aerospace) is often discussed as both a defense and commercial aerospace powerhouse. The company reported a company backlog of $268 billion, including $107 billion tied to defense.

That “split backlog” matters. In a world where commercial aerospace can be cyclical, a large defense backlog can act like a stabilizer—especially when governments prioritize readiness, replenishment, and modernization. RTX also highlighted momentum heading into 2026, reinforcing the idea that the pipeline is not theoretical; it is translating into planning and output decisions.

From Gabelli’s missile-supply-chain angle, RTX is particularly relevant because modern missiles rely on sophisticated sensing, guidance, and propulsion-related technologies—exactly the kind of high-spec work that large primes and major segments inside RTX are built to handle.

3) Boeing: the “recovery” wager with a massive backlog

Boeing stands out in Gabelli’s set because the bull case is less about a clean “defense-only” ramp and more about operational normalization. Even so, Boeing’s reported total backlog reached about $682 billion, a figure that signals just how large the demand pipeline can be when production constraints ease.

Multiple reports around Boeing’s results have pointed to improving delivery volume and progress toward stronger cash flow, even as the company continues to work through quality control, regulatory oversight, and program-specific charges.

In simple terms, the Boeing part of the thesis looks like this:

• If Boeing keeps stabilizing production and deliveries,
• then its backlog converts into revenue more smoothly,
• and suppliers tied to both commercial and defense programs can benefit as output rises.

It’s not the lowest-risk idea of the group—but in a capex cycle, “getting back to normal” can itself be a powerful catalyst.

The surprise pick: Albany International and the “unseen parts” of weapons systems

Gabelli’s most distinctive call is Albany International, which many everyday investors might associate more with industrial materials than with missiles. The reason it shows up here is Albany’s Engineered Composites business, which makes structural components used in high-performance aerospace and defense applications.

Why “small suppliers” can matter more than people think

When people picture defense manufacturing, they usually imagine the final assembly—fighter jets, missile bodies, radar systems, and launch platforms. But modern weapons are built from a chain of specialized inputs. Many of those inputs are “boring” on the surface (think: structures, casings, nose cones), yet they require:

• Highly specific materials science
• Repeatable precision manufacturing
• Quality systems that meet strict defense and aerospace standards
• Long qualification timelines that make quick supplier swaps difficult

That’s why Gabelli frames Albany as the type of company that can benefit when primes expand production: you can’t ramp missiles without ramping the components that go inside and around them.

Albany’s recent numbers: composites growth that popped in late 2025

Albany reported solid top-line performance in its late-2025 reporting period, including a notable jump in its composites segment. In coverage of Albany’s results, Engineered Composites revenue was reported at $143.7 million for the quarter, up strongly year-over-year.

24/7 Wall St. also pointed to Albany’s role in structural components tied to major aerospace programs and its development work in advanced materials, including ceramic matrix composites aimed at next-generation applications such as hypersonic systems.

To be clear: smaller suppliers can be volatile. They may rely on a narrower customer set, have fewer “shock absorbers” if a program slips, and face margin swings when they invest for growth. But that’s also why they can become interesting in a capex expansion—if the demand is durable, incremental volume can change the earnings picture fast.

How a “missile capex boom” could spread through the supply chain

Gabelli’s thesis is easiest to understand when you picture defense production like a highway system:

• The prime contractors are the big highways—high visibility, lots of traffic, and huge budgets.
• The specialty suppliers are the bridges and tunnels—less visible, but without them the entire system bottlenecks.

In a sustained ramp, primes may spend on:

• New tooling and automation
• Additional shifts and workforce training
• Supplier capacity (either through contracts, financing support, or long-term purchasing commitments)
• Inventory and long-lead components to avoid shortages

And then the suppliers, in turn, may need to expand:

• Machining and fabrication capacity
• Materials sourcing and qualification
• Testing and inspection capability
• Facilities and specialized equipment

This is what people mean when they say a “cycle” becomes a supercycle: a one-time surge turns into a multi-year industrial re-architecture.

Quick comparison table: what each pick represents in the thesis

Company	Role in the thesis	Signal investors watch
Lockheed Martin	Prime contractor with major missile and aircraft exposure	Record backlog and segment profitability improvement
RTX	Defense + aerospace giant with large defense backlog component	Backlog mix (defense vs. commercial) and production momentum
Boeing	Recovery story; backlog depends on execution and delivery stability	Production rates, quality metrics, and cash-flow progress
Albany International	Under-the-radar supplier with fast-growing composites segment	Segment growth, program wins, and advanced materials adoption

Backlog figures cited in the original discussion and related corporate disclosures include: Lockheed’s $194B, RTX’s $268B, and Boeing’s $682B.

What could go wrong: the key risks investors should not ignore

Even if you love the “capex wave” narrative, defense and aerospace investing is never a straight line. Here are the main risks that can disrupt the story:

1) Budget politics and shifting priorities

Defense spending can be strong overall while still shifting between categories. A program can grow, shrink, or be delayed based on changing needs, congressional negotiations, or procurement reforms. That uncertainty can hit both primes and suppliers—especially smaller ones tied to fewer programs.

2) Supply-chain bottlenecks don’t disappear overnight

Industrial capacity is not a light switch. Shortages in critical materials, limited machining capacity, or long certification timelines can slow ramps. Sometimes the “winners” are simply the companies that can deliver on time, not the ones with the flashiest product story.

3) Execution risk (especially for turnaround stories)

Boeing illustrates this risk clearly: progress can be real, but setbacks—quality findings, regulatory constraints, or program charges—can quickly change investor sentiment. Recent reporting has emphasized both the scale of Boeing’s backlog and the practical hurdles the company continues to face.

4) Valuation and expectations

When a theme becomes popular, stocks can price in a lot of good news early. If earnings or guidance don’t match the market’s hopes, even strong businesses can see pullbacks. In other words: being “right” on the long-term trend doesn’t always mean being right about the short-term stock move.

What to watch next: practical signals that the thesis is playing out

If you want to track whether Gabelli’s missile supply-chain bet is working, you don’t need secret information. You can watch for public signals that usually appear in earnings calls, investor presentations, and official filings:

• Backlog growth and backlog quality (new orders, cancellations, and timing)
• Capex guidance changes (are companies raising spending plans?)
• Production-rate commentary (are rates increasing sustainably?)
• Supplier-related disclosures (long-lead components, bottlenecks, inventory builds)
• Margin trends (is higher volume improving profitability?)

For RTX and Lockheed, backlog disclosures and outlook statements have been explicit in recent results communications—useful breadcrumbs for investors following this theme.

Why this story resonates right now

On March 5, 2026, 24/7 Wall St. framed Gabelli’s view around a simple but powerful shift: defense contractors are seeing conditions that make long-term capacity investment feel rational again.

At the same time, broader market coverage has noted that defense companies are increasingly leaning into long-duration revenue streams—maintenance, upgrades, software, and training—creating a “stickier” cash-flow profile than many investors once assumed.

Put those ideas together, and you get the heart of the thesis:

• Big backlogs suggest multi-year work visibility.
• Capacity expansion suggests output is rising, not just orders.
• Supply-chain participation suggests smaller, specialized firms can benefit too.

Conclusion: Gabelli’s “prime + supplier” approach is a bet on industrial reality

It’s easy to buy defense stocks when headlines are loud. It’s harder—and often more profitable—to focus on the slow, industrial mechanics that actually determine who wins: capacity, contracts, qualification, and the ability to deliver at scale.

Gabelli’s list—Lockheed Martin, RTX, Boeing, and Albany International—is essentially a bet that the next phase of defense spending will be measured not only in budgets, but in factories, tooling, and output. And if that’s the world we’re entering, the “small supplier you’ve never heard of” may end up being exactly the kind of company investors wish they’d noticed sooner.

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