This is BMInsider PRO content
You're reading a Deep Dive — our most in-depth research. Unlock full access to all analyses, Smart Money breakdowns & more.
Unlock BMInsider PRO →One-time payment · instant access · no account needed
In September 2025, Germany’s Rheinmetall was the stock all of Europe was talking about: from roughly €100 in early 2022 to an all-time high of €1,995 — a gain of nearly 1,900 percent in three and a half years. Anyone who bought at the start had turned every dollar into twenty. Yet by the summer of 2026, the shares of the Düsseldorf-based defense contractor had halved again, to around €990. And that happened even as its order book raced from record to record. How can both be true at once — and what does the contradiction reveal about what may be the largest structural investment theme of our era?
The answer matters far beyond one German stock. Rheinmetall’s share price has become a fever thermometer for an entire thesis: that the West has entered a multi-year “rearmament supercycle” that will carry defense equities for a decade or more. Investors who want to know whether that thesis is still intact — or whether the market has already fully priced it in, and then overshot — have to look beneath the headlines. That is exactly what this deep dive does, using Rheinmetall as the emblem and then widening the lens to the U.S. primes that dominate American portfolios.
From war winner to halved share price: the anatomy of a re-rating
Start with what actually happened. Rheinmetall was the purest expression of Europe’s Zeitenwende — the rupture in security policy triggered by Russia’s 2022 invasion of Ukraine. As the only major Western European maker with meaningful artillery-ammunition capacity, the company sat squarely on the bottleneck that every European army was suddenly trying to close at the same time. Markets did what they always do with structural scarcity: they re-rated the stock violently.
But a twenty-fold move is not an ordinary earnings gain — it is, to a large degree, an expansion of the valuation multiple. Investors grew willing to pay more and more for each dollar of future profit, because they saw a near-guaranteed decade of demand ahead. And that is precisely where the vulnerability lives. A high multiple is a promise about the future. Disappoint that promise even slightly, and the stock does not dip — it collapses, because the earnings estimate and the multiple contract at the same time. The slide from €1,995 to roughly €990 is a textbook demonstration of that mechanism, and it is the single most important lesson U.S. investors should carry into every high-flying defense name on their own watchlist.
The numbers behind the boom: the order book outruns revenue
Look at the actual results, because they are anything but weak. For fiscal 2025, Rheinmetall reported revenue of €9.935 billion — up 29 percent year over year — at an operating margin of 18.5 percent. More telling than revenue, though, is the order backlog, the leading indicator par excellence for any capital-goods business.
| Metric | 2024 | 2025 | 2026 outlook |
|---|---|---|---|
| Revenue | €7.6bn | €9.9bn | €14.0–14.5bn |
| Revenue growth | — | +29% | +40–45% |
| Operating margin | ~15.2% | 18.5% | ~19% |
| Order backlog (year-end) | ~€46.9bn | €63.8bn | target ~€135bn |
The backlog climbed to €63.8 billion at the end of 2025 — up 36 percent — and grew further to roughly €73 billion in the first quarter of 2026. Management has signaled it could more than double to around €135 billion over the course of 2026. For context, that would be nearly fourteen times 2025 revenue. A company with that backlog-to-revenue ratio has, in theory, full factory floors for years. So why did the stock fall?
The political tailwind is real — and quantifiable
Before dissecting the disappointment, take the tailwind seriously, because it is not vague sentiment but binding policy. Three layers interlock.
| Layer | Decision | Scale / target |
|---|---|---|
| NATO (The Hague summit, June 2025) | “Hague Investment Plan” | 5% of GDP by 2035 (3.5% core defense + 1.5% broader security); all 32 members except Spain |
| EU (ReArm Europe / Readiness 2030) | March 2025, von der Leyen | Mobilize up to ~€800bn; incl. €150bn of EU-level loans (SAFE) |
| Germany | Debt-brake reform, 2025 | Defense spending above 1% of GDP exempted from the debt brake; additional special fund |
The crucial detail: the old NATO target of 2 percent of GDP, set at the 2014 Wales summit, was met by only 23 of 32 members as recently as 2024. The jump to 3.5 percent of core defense is therefore not fine-tuning but nearly a doubling of the base — and it is dated to 2035, with a review in 2029. For a supplier, that offers a visibility of demand almost unheard of in civilian industry. That visibility justifies part of the rich valuation. It does not, however, explain why the stock fell.
Why the stock fell anyway: the three disappointments
If the facts are this good, the disappointment must be in the detail — and it is. When Rheinmetall presented its 2025 results in March 2026, three things collided with the market’s inflated expectations.
First, the guidance itself. The 2026 revenue outlook of €14.0–14.5 billion sounds spectacular — 40 to 45 percent growth — but it landed below the analyst consensus of roughly €15 billion. When a market is priced for perfection, “merely very good” is already a letdown. The margin outlook of about 19 percent and the free-cash-flow conversion guidance also came in shy of hopes.
Second, the quality of the closing quarter. In the fourth quarter of 2025, Rheinmetall generated revenue of €2.42 billion — around 7 percent below consensus — with operating profit missing by a similar margin. For a growth stock whose entire valuation logic rests on unbroken acceleration, a quarter that misses by 7 percent is a warning flare.
Third, the reasons for the miss. Management cited customer-side timing delays, a site accident that reduced 2025 revenue, and margin pressure in ramping areas such as digital and naval. It added that its strong cash conversion partly relies on customer prepayments — a pattern that cannot be extended indefinitely. None of these is existential on its own. Together, though, they paint a company winning orders faster than it can convert them into revenue and profit.
Backlog is not revenue is not profit
Here lies perhaps the single most important insight of this analysis — and the most commonly overlooked trap in defense stocks. A €135 billion order book is an impressive number, but it is a promise, not cash. Between the signature on a framework contract and the profit that finally lands on the income statement lie three gaps.
The capacity gap. Orders can be multiplied with a stroke of the pen; production capacity cannot. New ammunition plants, skilled workers, and qualified supply chains take years. That is precisely why 2026 revenue growth is “only” 40 to 45 percent even though the backlog grows faster. The bottleneck migrates from the market into the company’s own factories.
The timing gap. Government procurement is not linear. Budget negotiations, approvals, and shifting political priorities push deliveries by quarters — exactly what caused the soft Q4 2025. A backlog does not smooth these swings; it merely hides them.
The margin gap. Not every dollar of revenue is equally profitable. Ramping new plants, product lines, and business units initially depresses margins before scale kicks in. The path from 18.5 to 19 percent margin is therefore narrower than the order boom implies.
The two sides of the same trade: Europe and the U.S. primes
Rheinmetall is the star, but not the whole film. And for American investors, the sector splits into two distinct trades with different risk profiles.
| Company | Base | Focus | 2026 profile |
|---|---|---|---|
| Rheinmetall | DE | Ammunition, land systems, vehicles | Leader; rich valuation, high downside beta |
| BAE Systems / Leonardo / Thales | UK / IT / FR | Diversified defense & electronics | Size and diversity = relative stability |
| Lockheed Martin | US | F-35, missiles, space | ~24x trailing / ~17x forward P/E; European F-35 demand |
| RTX | US | Patriot, engines, missiles | Key beneficiary of European air-defense demand |
| General Dynamics / Northrop Grumman | US | Land, subs, bombers, nuclear | Steady backlog; more mature U.S. cycle |
Two facts frame the choice. First, the top five U.S. primes closed fiscal 2025 with a combined backlog of $1.36 trillion, up 23.7 percent — evidence that this is a broad, multi-year cycle, not a one-country story. Second, U.S. primes trade at roughly 20 times forward earnings versus about 21 times for European peers — a striking convergence given how much more explosively the European names have grown (average revenue up about 57 percent from 2021 to 2025). The bull case for the European side rests on one argument: its procurement cycle is at an earlier stage than the more mature U.S. cycle, so more of the revenue still lies ahead. The bull case for the U.S. side is the mirror image — lower drama, deeper backlogs, and direct exposure to European rearmament through F-35 jets and Patriot systems that only American firms supply.
Valuation: what is actually priced in?
Now to the heart of any investment decision: not whether a company is good, but whether the price already reflects the good news fully — or has overshot it. Defense stocks today trade at valuations far above their historical norms; observers note that the sector’s enterprise-value-to-sales ratio has reached nearly triple the levels seen at the start of the century. A scenario frame makes the range of outcomes tangible.
| Scenario | Assumption | Consequence for the stock |
|---|---|---|
| Bull | Revenue doubles by 2028, margin trends toward 20%+, multiple stays high | Stock grows into its valuation; new highs possible |
| Base | Strong but lumpy growth; multiple normalizes as the story matures | Stock chops sideways as earnings catch up to price |
| Bear | Budget fatigue, delivery slippage, margin pressure; multiple compresses sharply | Further price declines despite rising revenue |
The central insight: in all three scenarios revenue grows. The difference between a doubling and a halving of the stock lies almost entirely in the multiple — how much investors are willing to pay for each dollar of profit. That is the uncomfortable truth about richly valued growth stocks: operating success is often the easier part; the share price hangs on the swinging psychology of valuation.
Taking the bear case seriously
An honest deep dive must state the counterarguments in their strongest form. Three risks deserve special attention.
Fiscal strain. The 5 percent targets assume that heavily indebted governments will sharply raise defense outlays for a decade. The International Monetary Fund has warned that this very spending surge could undermine the fiscal stability that underpins the valuations. Rising interest costs and political resistance to cutting social programs could stretch procurement plans.
Peace as a risk. The most cynical point, but a real one for investors: defense valuations effectively assume permanent geopolitical instability. A credible de-escalation — a durable ceasefire, a political course change — would dampen the urgency driving the supercycle. One need not wish to be wrong in that direction.
The return of valuation discipline. After years in which every defense stock rose regardless of quality, 2026 has become a year of selection. Analysts stress that entry price matters again — unlike 2022–23, when mere sector exposure sufficed. Buying broadly and expensively carries more risk than selectively weighing valuation, balance sheet, and execution. The tank maker KNDS postponed its IPO in July 2026 precisely because the environment for defense stocks had cooled.
The bull case: a decade of catching up
Against that stands a structural case just as serious. After three decades of a “peace dividend,” Europe let entire capabilities wither: ammunition stocks, air defense, logistics, drone defense. This is not a business cycle but a rebuild from the foundation up — one that takes years and whose orders are only beginning. The jump from 2 to 3.5 percent of core defense is legally anchored and dated to 2035, a demand base civilian industries never enjoy.
And the valuations, while high, are not grotesque. At roughly 20–21 times forward earnings, defense trades at a premium many quality growth stocks command — not at bubble levels — for double-digit, politically backed growth. For U.S. investors, the primes offer that exposure with the added ballast of dividends, buybacks, and backlogs measured in years, not quarters.
For U.S. investors: access and tax
Americans can express this theme several ways, each with its own trade-offs. The U.S. primes — Lockheed Martin, RTX, General Dynamics, Northrop Grumman — trade directly on U.S. exchanges, pay dividends, and offer the steadiest exposure. The European high-fliers are mostly reachable via ADRs or foreign-ordinary tickers, but carry the single-stock risk this article has just illustrated: a halving despite record books is real, and currency adds a second variable.
For broader, lower-volatility exposure, several U.S.-listed aerospace-and-defense ETFs bundle the primes and their suppliers; a handful now tilt specifically toward the European rearmament theme. As always, read the holdings — some funds are concentrated in two or three names, which quietly reintroduces the single-stock risk an ETF is supposed to diffuse.
On taxes, U.S. investors face ordinary rules: long-term capital gains (assets held more than a year) are taxed at preferential rates, short-term gains at ordinary income rates. Qualified dividends from U.S. primes generally receive the favorable rate. Foreign stocks and some ADRs can trigger foreign withholding on dividends — often partly recoverable via the foreign tax credit — and holding them in a tax-advantaged account can change the after-tax math. This analysis is educational, not tax or investment advice; the aim is to make the mechanics clear, not to issue a specific recommendation.
Bottom line: a great trend is not a great stock at any price
Rheinmetall’s halving is not proof that the rearmament supercycle is over — it is proof that “strong trend” and “attractive stock at today’s price” are two different statements. The structural tailwind from NATO targets, EU programs, and Germany’s debt-brake reform is real, binding, and multi-year. Yet the market had at times priced that tailwind so completely that a single slightly missed quarter was enough to cut the valuation in half.
For the long-term investor, the conclusion is not a simple buy or sell but a posture: entry price matters again. The most interesting question is not whether the West is rearming — it is — but whether current valuations already price in the inevitable disappointments along the way. The next test is already on the calendar: quarterly results in early August 2026. They will show whether Rheinmetall is closing the gap between backlog and profit faster than the market now fears — or slower than the bulls still hope.