Best Defense Stocks

The reason defense stocks get so much attention is a genuine increase in government spending. The US defense budget for fiscal 2026 surpassed $1 trillion when base appropriations and reconciliation funds are combined, and global military expenditure reached a record in 2025 as Europe rearms and Asia raises budgets. Higher and more durable spending tends to flow into the multi-year backlogs the prime contractors carry, which is the real mechanism behind the theme.

But honesty cuts both ways, and a tailwind is not a guarantee.

• Budgets are political. Defense appropriations can be cut, delayed, or shifted between programs with each administration and each Congress. A program a company depends on can lose funding.
• Program risk is real. The primes take on fixed-price contracts where cost overruns hit their own margins. Both Lockheed Martin and Northrop Grumman have reported charges on major fixed-price programs.
• Valuations vary widely. The traditional primes trade like industrials with dividends, while some defense-software names trade at much richer multiples that compress quickly if growth slows.

None of this is a recommendation. It is the context you need to read the list below as research rather than as a set of hot tips riding a budget headline.

Below are the defense names most widely held and discussed in 2026, grouped by the role each one plays in the sector. For each, the note explains what the business builds and why it is commonly held, not whether you should own it. Every name links to its own page with the deeper detail.

The same names, grouped by role, so you can scan the breadth across the list rather than read it as a ranking.

A list of stocks is an input, not a portfolio. The difference between the two is structure: which roles you want exposure to, how much weight each name gets, and the discipline to keep no single position from dominating. The repeatable way to do it looks like this.

• Pick a thesis. Decide what view you are expressing. Owning the primes for backlog and dividends is a very different portfolio from tilting toward defense software and autonomy.
• Spread across roles, not just names. Holding Lockheed Martin, RTX, and Northrop Grumman is still one bet on the prime contractors. Mixing in the software-and-services layer, or pairing defense with unrelated themes, spreads risk so a single budget or program shock does not sink everything.
• Set target weights. Assign each name a percentage that sums to 100, so concentration is a choice you made rather than an accident of which stock ran up.
• Compare against the S&P 500. Check how the mix would have tracked the benchmark, because a sector tilt should earn its keep versus just holding a broad index.
• Place the trades and review. Buy to your targets, then revisit periodically as weights drift away from where you set them or as budgets shift.

This is exactly what Walnut is built for. You create a thematic basket from the stocks you choose, set a target weight for each, see how the basket would track against the S&P 500, and place trades you approve yourself at your own broker. Walnut frames each holding against the S&P 500 and shows how the mix is concentrated, so the portfolio is a deliberate structure rather than a pile of separate bets. Walnut does not tell you which stocks to buy.

If you would rather own the sector in one holding instead of picking names, see our guide to the best defense ETFs, or browse the defense modernization theme for a ready-made basket. For broader context on funds across sectors, the best ETF in every category guide maps the wider landscape.

To be clear about method, since framing matters on a page like this: this is not a prediction and not a ranking. We did not forecast which defense stocks will rise, score them, or order them by expected return, because no one can do that reliably. We featured names on three descriptive criteria instead.

• Widely held. Each is a large, broadly owned defense company that appears across the major defense funds and mainstream portfolios, so the page reflects what people actually hold rather than obscure tips.
• Liquid and established. We featured large, liquid, well-covered companies, not speculative microcaps, so the descriptions can lean on durable business facts rather than hype.
• Role-representative. Each name was chosen to illustrate a role (a prime platform builder or a software-and-services supplier) so the list teaches how a defense portfolio is built, not which single stock to chase.

The result is a map of what tends to anchor defense portfolios in 2026 and how to think about it, not a buy list. Treat every name as a starting point for your own research. Facts about companies, contracts, and budgets change; verify current details before you act.

The honest answer to “what are the best defense stocks” is that there is no single list, because the right holdings depend on your goals and no one can predict prices. What tends to anchor defense portfolios is a spread across two roles: the prime contractors like Lockheed Martin, RTX, Northrop Grumman, General Dynamics, Boeing, L3Harris, and Huntington Ingalls; and the next-generation software-and-services layer like Palantir, Axon, Leidos, and Booz Allen Hamilton. A record US defense budget is the tailwind people cite, but budgets are political and the sector carries fixed-price program risk and, in places, rich valuations. The useful move is to treat a list like this as research and build a diversified, weighted portfolio from it rather than buying a single name. Walnut helps you turn that into a thematic basket you control. It is not an investment adviser, and nothing here is a recommendation.