Report · Industrial Automation

Belimo Holding: A Premium HVAC Compounder Priced for an AI-Cooling Runway

BEAN · SW
Other languages
Current Price
904
Jun 27, 2026 close
Fair Buy
480
Margin-of-safety entry
Baillie Growth Score
57/100
Medium
Intrinsic Value · Three-Tier Range Current price 904 · Within the optimistic intrinsic-value range · much expectation priced in

Composite valuation range · conservative 450–480 / fair 610–830 / optimistic 880–980. At 904, Within the optimistic intrinsic-value range · much expectation priced in.

Lead

Belimo is the Swiss pure-play leader in HVAC field devices (the actuators, control valves, sensors and meters that regulate heating, cooling and ventilation), selling through contracting and retrofit channels at about 60% of sales and OEM channels at about 40% without competing with the integrated building-automation giants it supplies. In 2025 sales rose 23.3% in local currencies to CHF 1,120.8 million with a 20.8% EBIT margin and 27.8% ROIC, as AI data-center liquid cooling at about 17% of sales became a second growth engine on top of a durable energy-efficiency retrofit franchise, yet at roughly 61x trailing earnings the stock sits near the top of its own historical range. Rating Watch: a genuinely excellent niche compounder whose price already discounts excellence plus a long AI-cooling runway, with a more attractive entry only below roughly CHF 480.

Quick ReadPlain-language overview · read this first

Belimo is a Swiss company that makes the small but critical devices that control heating, cooling and ventilation in buildings: the actuators that open and close dampers and valves, the control valves themselves, and the sensors and meters that track flow and temperature. These parts are a tiny share of a building's cost, but when one fails it wastes energy, hurts comfort, or risks downtime, so customers buy on reliability and fast delivery rather than on lowest price.

The business is unusually good. Belimo stays focused on this one layer instead of trying to sell whole building systems, so it does not compete with the contractors and big building-automation firms that buy from it. It outsources about 88% of production cost and concentrates on assembly, engineering and service, which lets it earn very high returns on capital (around 28% in 2025) without owning huge factories. In 2025 sales grew 23.3% in local currencies to CHF 1.12 billion, with a 20.8% operating margin and a fortress balance sheet.

Two engines drive the company. The old, steady one is energy-efficiency retrofits: most of the world's buildings already exist, regulations keep tightening, and better controls can cut HVAC energy use by around 30%. The new, hot one is AI data-center cooling, where denser server racks are shifting from air to liquid cooling and need precise valves and sensors. Data centers were about 17% of 2025 sales and are now a formal strategic priority.

The catch is the price. After a strong re-rating, the stock trades around 61 times earnings, near the top of its own history and about double the multiple of larger rivals such as Siemens and Johnson Controls. On owner earnings, which strip out today's heavy expansion spending, it is even richer, in the mid-70s. The rating is Watch: this is a genuinely excellent company, but the share price already assumes both continued excellence and a long AI-cooling boom, leaving little margin of safety. The report sees a more attractive entry below roughly CHF 480.

This is research, not investment advice. Markets carry risk; invest with caution.

Full report

Meta

  • Ticker: BEAN.SW
  • Company: BELIMO Holding AG
  • Price & market cap: CHF 904.00 close and CHF 11.12 billion market capitalization, as of 2026-06-26
  • Currency: CHF
  • Report date: 2026-06-27
  • Industry: Building Controls
  • One-line positioning: Swiss HVAC field-device pure play selling actuators, control valves, and sensors for efficient buildings and data-center cooling, with 2025 sales of CHF 1,120.8 million.

Research Summary

Belimo is easiest to misunderstand when it is described too broadly. At its core it is a focused field-device company. The comparisons to a scaled-down Schneider or Johnson Controls, or to a full-stack building-automation platform, all miss what it actually does. Its money is made at the mechanical-electrical edge of HVAC systems: damper actuators, control valves, sensors, meters, and the software-enabled products wrapped around them. That focus explains both the economics and the valuation. Customers buy Belimo for reliability at a single control point, not for a bundled building, because a failed or poorly tuned actuator or valve can waste energy, break comfort, jeopardize uptime, and create service headaches across a system that costs far more than the component itself. Belimo’s own equity materials frame it as a pure-play field-device specialist inside a broader value chain that also runs through the “Global 4” integrated building-automation companies, system integrators, contractors, and HVAC OEMs. They put contracting channels at roughly 60% of sales and OEM channels at roughly 40%.

The market is trading two stories at once. The old story is the one that built Belimo’s reputation: a high-return, asset-light HVAC controls franchise tied to energy efficiency, building retrofits, and a fragmented installed base that creates many low-ticket, mission-relevant replacement opportunities. The new story is AI data-center liquid cooling. In 2025, Belimo’s sales rose 23.3% in local currencies and 18.7% in Swiss francs to CHF 1,120.8 million, with EBIT margin expanding to 20.8%. The company now calls data centers a strategic pillar, built a dedicated global team, and says the vertical will benefit from more installed data-center capacity and a rising share of liquid-cooled designs. Belimo’s investor materials say data centers were about 17% of 2025 sales, that cooling is becoming mission-critical for AI deployment, and that Belimo has established collaborations with hyperscalers and leading AI chip designers.

That is why the stock rerated. Belimo already traded at premium multiples before the AI wave because it had long shown unusually high returns on capital, good cash conversion, disciplined capital allocation, and a concentrated product set with short payback for customers. The AI narrative stacked a second growth curve on top of a quality premium that already existed, rather than inventing the premium from scratch. The share-price history in Belimo’s own investor section shows year-end P/E ratios of 61.6 times in 2021, 44.0 times in 2022, 41.6 times in 2023, 50.2 times in 2024, and 52.9 times in 2025. The price then closed at CHF 904.00 on 2026-06-26, implying about 61.2 times trailing EPS of CHF 14.77, back near the top of its recent range. Market-cap-to-sales is now about 9.9 times using the same close and 2025 sales, above the 2021-2025 year-end range implied by Belimo’s own market-cap and sales history.

The central disagreement is simple. Bulls think 2025 was the moment Belimo crossed from “excellent niche HVAC compounder” into “excellent niche HVAC compounder plus structural AI cooling winner.” On that view, data-center cooling is a durable architecture shift rather than a one-off pulse, because AI rack densities are pushing cooling from air toward liquid, and Belimo has the right product set in control valves, energy valves, sensors, and reliability-focused hydronic components. Third-party industry evidence helps that case: the IEA says global data-center electricity consumption is projected to more than double to around 945 TWh by 2030, while Dell’Oro expects the data-center liquid-cooling market to roughly double in 2025 to nearly $3 billion and approach $7 billion by 2029. Uptime Institute likewise says AI is accelerating adoption of cold-plate and immersion systems.

Bears do not need to deny the technology shift. They only need to argue that the stock already prices too much of it. That bear case has force. Belimo itself expects 2026 sales growth in local currencies to be in the mid-teens, with EBIT margin above 20%, after a year when data centers became a formal strategic pillar. That is strong guidance, but the current multiple implies the market is already rewarding Belimo as though the data-center business will stay large, fast-growing, and high-margin long enough to keep lifting the whole group’s mix. If the data-center contribution normalizes, if customer architectures internalize more of the value, if large integrated players make liquid cooling more bundle-heavy, or if hyperscaler capex pauses, the stock has little valuation protection. Competing ecosystems are not standing still: Schneider is now leaning heavily into data-center demand, Johnson Controls is talking about data-center strength in key verticals, Eaton bought Boyd’s thermal business, and Vertiv has been extending its liquid-cooling capabilities.

The honest label here is high-quality compounding growth, but with a more cyclical overlay than the market sometimes admits. The core retrofit-and-efficiency franchise is structurally attractive because buildings remain energy-hungry and controls retrofits can save large amounts of HVAC energy. The IEA says buildings account for about 30% of final energy consumption globally and more than half of electricity consumption, while the U.S. Department of Energy says high-performance controls can reduce HVAC energy use in commercial buildings by 30%. Belimo’s own materials cite 29% to 55% HVAC energy savings from building automation and controls systems depending on sophistication. That core business should outgrow GDP over time. But 2025’s acceleration leaned heavily on a capex-intensive, fast-moving data-center buildout cycle, not on the core alone.

On the fundamentals, Belimo deserves a premium. On capital-markets terms, that premium now looks stretched again. At CHF 904, the live question is whether an investor is being paid for three things: execution risk, concentration risk inside the new growth engine, and multiple-compression risk if strong guidance turns into merely good results. Whether the business is good was never the question. Today the payoff for those risks looks thin, and the company sits in the uncomfortable zone reserved for very good businesses whose stock prices have moved faster than the owner-earnings base underneath them.

Company Vertical History

Belimo was founded in 1975 in the Zurich area by Walter Belimo and the siblings Ernst and Hans-Ulrich Linsi. The company history on Belimo’s own site describes the starting point plainly: automatic, motorized dampers were a small and neglected niche, and the founders believed there was room for a specialist whose entire attention sat on HVAC actuators rather than on broader industrial products. That origin still explains the company better than any recent investor deck. Belimo exists because focused engineering on a small but essential control point can create disproportionate customer value.

The listing path was straightforward rather than exotic. Belimo says its registered shares have been listed on the SIX Swiss Exchange since 1995. A later institutional turn matters almost as much as the IPO itself: the Linsi Foundation says the founders’ wealth from the Belimo flotation led them in 1997 to establish the charitable U.W. Linsi Foundation and contribute most of the family’s shares to it. Belimo’s 2025 corporate-governance disclosure still shows Group Linsi as the largest disclosed holder at 19.55% of share capital and 19.51% of voting rights, with BlackRock and UBS Fund Management the other holders above 3%. The ownership structure isn’t founder-controlled in the usual sense, yet it still gives the company a stable anchor with a long time horizon.

Belimo’s first long phase ran from founding to listing. The company turned a narrow actuator specialty into a professional product line with Swiss manufacturing credibility, then built enough market standing to enter public markets. The second phase ran roughly from the mid-1990s into the early 2010s: globalization, channel building, and expansion from air-side control into broader water-side and systems applications. The third phase ran through the 2010s: a deeper move into control valves and then sensors and meters, plus a stronger software and digital layer around the devices. The fourth phase began around 2020 and is still running: first a pandemic-and-supply-chain stress test, then a step-up in retrofit emphasis through RetroFIT+, and now a sharp acceleration tied to data-center cooling and liquid-cooling architectures.

Two management transitions deserve emphasis because they speak to continuity rather than drama. Lars van der Haegen became CEO in 2017 after a long internal career spanning product management, Belimo Americas, and the Italian business. Markus Schürch was appointed CFO effective 2019. Patrick Burkhalter, a director since 2014, became chairman in 2019. Belimo kept compounding by promoting operators steeped in the prior playbook rather than clearing out the old regime to reinvent itself. That continuity matters because the current AI cooling opportunity is being approached by the same organization that built the legacy franchise: close to the product, close to channels, and careful with capacity.

The nodes that matter here are product and market-positioning shifts, not flashy acquisitions or restructurings. Belimo’s equity story lays out the logic: keep expanding leadership in actuators and control valves, win share in sensors and meters, build a digital ecosystem around the installed base, push RetroFIT+ to accelerate renovations, and capture fast-growing verticals such as data centers. In 2025 the company formally elevated data centers into a strategic pillar, created a dedicated global team, and advanced a product roadmap for energy-valve solutions for data centers. It also said it would open an application center for data-center cooling in Danbury in 2026 and had already opened a data-center experience center in Singapore during late 2025. That sequence shows management organized around liquid cooling rather than treating it as a passing order spike.

The financial vertical review shows why capital markets learned to trust Belimo before the AI narrative arrived. Between 2021 and 2025, sales rose from CHF 765.3 million to CHF 1,120.8 million, EBIT from CHF 145.4 million to CHF 232.9 million, net income from CHF 115.5 million to CHF 181.6 million, and ROIC stayed in a tight band of roughly 25% to 28% before reaching 27.8% in 2025. Operating cash flow exceeded net income in four of the last five years and was roughly in line in the fifth. Free cash flow excluding term deposits was more volatile, because Belimo has been spending on capacity, but the balance sheet remained unusually strong, with a 70.8% equity ratio and net liquidity of CHF 69.4 million at the end of 2025 even after elevated capex. This is what a real quality industrial looks like: capex that funds itself, with no balance-sheet strain.

Metric 2021 2022 2023 2024 2025
Net sales, CHF m 765.3 846.9 858.8 943.9 1,120.8
EBIT margin 19.0% 18.0% 17.8% 19.2% 20.8%
Net income, CHF m 115.5 122.7 136.8 146.7 181.6
Operating cash flow, CHF m 153.0 112.9 157.0 194.8 184.9
Free cash flow ex term deposits, CHF m 105.5 56.2 110.9 132.8 98.5
ROIC 26.0% 24.9% 26.6% 25.7% 27.8%
Year-end P/E 61.6x 44.0x 41.6x 50.2x 52.9x

Source data come from Belimo’s 2025 and 2024 investor information pages and 2025 management report.

The stock-market history mirrors those stages. Belimo’s multiple was already rich in 2021, then compressed in 2022 and 2023 as rates rose and industrial quality stocks de-rated. It recovered in 2024 as the company printed improving margins and sales, then accelerated again in 2025 as markets recognized that Belimo was gaining from AI-driven data-center cooling. In June 2026, Morgan Stanley upgraded the stock and raised its target on stronger data-center assumptions, and Belimo shares jumped about 8% on the day. That proves what the market currently cares about, not whether the thesis is right.

Business Model, Moat, and Industry

Belimo’s business model is narrower than it first appears and stronger because of that narrowness. The company sits at the field-device layer of HVAC systems. In Belimo’s own schematic, downstream power belongs to the integrated building-automation players, system integrators, contractors, service companies, and HVAC OEMs. Belimo deliberately stays focused on the component-and-device layer rather than competing with its own channels. That lack of channel conflict is a real advantage. A field-device specialist can sell into many system architectures and many brands, which is one reason Belimo can be both a supplier to OEMs and a favored choice in contracting and retrofit channels.

The revenue engine rests on three legs. First, actuators and control valves remain the core franchise. Second, sensors and meters broaden the product envelope and deepen content per installation. Third, software-enabled products, retrofit tools, and digital ecosystem features make the installed base more valuable and the service proposition stickier. Belimo says its innovation spending is around 7% of sales, that it has the broadest portfolio purely focused on HVAC, and that the current product cycle includes the multi-year rollout of its New Digital Generation actuator family. This is a hardware-plus-firmware-plus-application moat rather than a software moat in the usual sense, harder for capital markets to romanticize but easier for industrial customers to trust.

The cost structure explains the return profile. Belimo’s equity story says 88% of production costs are incurred within an external supplier network, with Belimo focusing internally on assembly, logistics, and customization. This is an unusually favorable setup for a manufacturer whose value lies less in heavy fabrication and more in engineering, reliability, configurability, and channel service. It allows capital intensity to stay moderate while lead times remain very short. Belimo claims it can often ship within roughly 48 hours, well below industry standards. The result is a form of operating leverage that does not require giant fixed assets: when volume grows, margins can expand because the company scales through procurement, assembly, and mix rather than through a massive owned-factory base.

That is also why the moat is real. Four moat sources matter. The first is product reliability at a tiny relative cost to the customer. A valve or actuator is a small part of the system bill, but a failure is expensive in labor, energy waste, uptime loss, or tenant discomfort. The second is channel trust. Because Belimo is not trying to become the whole building stack, contractors, integrators, and OEMs can buy from it without feeding a direct competitor. The third is application know-how built over decades in niche HVAC control points. The fourth is localized service and availability. Belimo has grown partly because, for ordinary but mission-relevant control functions, customers want something that works, arrives quickly, and slots neatly into the system, not an exotic, custom-engineered, long-lead component.

The industry backdrop supports the core business. Buildings consume about 30% of global final energy demand, and heating, cooling, ventilation, and controls are one of the cleanest ways to lower that burden. The EU’s revised Energy Performance of Buildings Directive tightens the efficiency path for new buildings and renovation, including zero-emission standards for all new buildings by 2030. In the United States, the Department of Energy says high-performance controls can cut HVAC energy use in commercial buildings by 30%. That creates a long runway for retrofit demand even if non-residential new construction is uneven. Belimo’s RetroFIT+ initiative is built around precisely that: turning an enormous installed base into a renovation pipeline. Its own equity story stresses that about 98% of the world’s buildings are installed base rather than new construction each year.

The newer tailwind is data-center cooling. Here the industry logic carries more cyclicality, though a real architectural shift sits underneath it. The IEA’s AI and energy work points to a sharp rise in data-center power demand through 2030. Dell’Oro expects liquid cooling to scale rapidly as accelerator thermal design power rises. Uptime Institute says AI is accelerating adoption of cold-plate and immersion cooling. Belimo’s equity materials argue that data-center HVAC spend as a share of data-center spend is rising and estimate Belimo’s content opportunity at CHF 40 million to CHF 60 million per gigawatt of additional data-center capacity, with liquid cooling at the upper end. Parts of that are company marketing, but the broad direction is credible: denser AI racks need more precise hydronic control, better sensing, and more reliable thermal management. That is structurally favorable for Belimo’s field devices even if the annual ordering pattern remains lumpy.

The main cycle exposures are therefore mixed. Core retrofit demand is relatively defensive. New non-residential construction is more cyclical. Data-center cooling is tied to a capex cycle, but one with a strong architectural tailwind behind it. That blend makes Belimo a quality industrial: a secular retrofit engine with a very hot capex-driven growth pocket layered on top, which is why neither the pure software-like compounder label nor the standard short-cycle industrial label fits.

Horizontal Competitor Analysis

Belimo has direct competitors in product categories, but very few true corporate twins. The most informative peer set mixes direct and valuation comparables: Johnson Controls, Schneider Electric, and Siemens for the broader building-controls and thermal-management ecosystems, with Honeywell as a relevant building-products reference even though it is more diversified. Danfoss remains relevant operationally in hydronics and valves, but it is private and therefore less useful as a capital-markets comparator. Belimo’s own value-chain framing makes the point clearly: it operates alongside the global integrated building-automation groups rather than simply inside one of them.

What each peer became matters more than any spec sheet. Johnson Controls grew into a broad mission-critical building-systems company, with chiller scale, service depth, security and fire capabilities, and heavier exposure to large solutions projects. Buyers go there when they want bundled systems, service, and lifecycle contracts. Schneider became the electrification-and-digital-infrastructure giant whose data-center proposition combines power, racks, controls, and cooling, and it wins when power architecture and systems integration matter as much as HVAC controls. Siemens Smart Infrastructure sits between classic building automation and grid/building intelligence; it suits buyers who want building-management integration tied into a broader digital infrastructure stack. Honeywell Building Automation stays strong in building products and solutions, especially where large enterprise relationships and adjacent industrial automation matter. Belimo, by contrast, became the neutral, premium, field-device specialist, the one customers choose when reliability, efficiency, lead time, and ease of integration at the component layer count for more than a one-vendor stack.

Metric Belimo Johnson Controls Schneider Electric Siemens Honeywell Building Automation
Market cap, converted to CHF bn† 11.1 68.3 144.8 192.4 n.a.
Current trailing P/E 61.2x 24.8x 37.8x 27.3x n.a.
Latest cited comparable margin 20.8% EBIT 13.1% EBIT margin in Q2 FY26 21.8% Energy Management adj. EBITA 18%–19% Smart Infrastructure guidance for FY26 26.5% BA segment margin in FY25
Latest cited comparable growth marker +23.3% LC sales in 2025 Data-center strength highlighted in Americas orders and FY26 outlook Data-center-led growth in Energy Management Smart Infrastructure revenue rose to €5.93bn in Q2 2026 BA sales +13% in FY25, +8% organic in Q4

† Peer market caps converted to CHF using SNB rates on 2026-06-26 of 1 USD = CHF 0.8084 and 1 EUR = CHF 0.9218. Belimo price data come from Google Finance. Schneider, Siemens, and Johnson Controls market data come from Google Finance or Yahoo Finance snapshots; operating metrics come from company reporting.

The business reason for Belimo’s premium is visible in the table but not explained by the table. Belimo’s nearest corporate peers are all much larger, broader, and more diversified. That breadth brings advantages in customer bundling, data-center systems scale, and aftermarket annuities, but it also dilutes the pure-play economics of a small, high-value control point. Belimo’s narrower product scope produces a smaller addressable market, yet much higher capital efficiency, cleaner organization, and fewer strategic distractions. That is why the market has often paid Belimo a higher earnings multiple than much larger peers with lower comparable margins or weaker returns on capital.

The risk is that data-center cooling blurs those boundaries. As liquid cooling becomes a systems problem rather than only a component problem, the broad providers gain more negotiating power. Schneider is already benefiting from data-center demand across cooling and electrical infrastructure. Johnson Controls is talking about customer engagement in mission-critical applications and data-center demand. Eaton and Vertiv are pushing deeper into thermal infrastructure through acquisition and product expansion. Belimo can still win because its field devices sit inside those systems and because neutrality is valuable. But in the new hot market segment, the competitive game is less isolated than in classic commercial-building retrofits.

Belimo’s ecological niche remains clear. It is the premium niche leader at the field-device layer. It takes profit from both low-end generic components, which it beats on reliability and efficiency, and from integrated system vendors, which it complements while also competing for specification mindshare. If the industry faces a price war in standard devices, Belimo’s position weakens less than generic suppliers because its customer base buys on life-cycle performance, not only on invoice price. If the industry shifts toward more bundled system selling in liquid cooling, Belimo’s position weakens more than in the legacy HVAC franchise because value capture can migrate upward to the system level. That is the essential horizontal judgment.

Current Fundamentals, Valuation, Risks, and Tracking Indicators

Belimo’s current fundamentals are strong by any normal industrial standard. In the first half of 2025, sales reached CHF 561.5 million, up 20.6% in local currencies, with net income of CHF 101.3 million; free cash flow excluding term deposits was CHF 52.8 million despite higher capex tied to capacity expansion. Full-year 2025 then closed at CHF 1,120.8 million of sales, up 23.3% in local currencies, with EBIT margin at 20.8%. Margin expansion came from operating leverage, innovation, and product mix, partly offset by FX headwinds and tariffs; Belimo says price increases in the second half of 2025 alleviated tariff effects, though some supply-chain flow-through shifted to the first quarter of 2026.

What the market is trading now is a belief: that 2025 was the start of a new growth era, not just “good execution.” Management’s 2026 outlook calls for mid-teens local-currency sales growth and EBIT margin above 20%, with data centers still expected to benefit from both installed-capacity growth and a higher share of liquid-cooled new capacity. The company also says capex will remain elevated in 2026 as it continues to expand facilities in Switzerland and the United States. That gives bulls a coherent bridge from a blockbuster 2025 into a still-healthy 2026.

The cash-flow picture is good, but not as effortless as the headline P/E suggests. Over the last five years, operating cash flow averaged roughly 1.15 times net income using Belimo’s reported figures. That is healthy. The more important issue is capex. D&A has run in the mid-CHF 30 million range, while 2025 capex rose to CHF 86.8 million and 2024 capex was CHF 63.1 million as the company expanded capacity. A reasonable owner-earnings approach is therefore to treat only part of current capex as maintenance. On a rough owner-earnings basis using 2025 operating cash flow minus normalized maintenance capex around the recent D&A level, Belimo earned about CHF 12.1 per share, versus reported EPS of CHF 14.77. That puts the stock closer to the mid-70s on “true” owner earnings, not 61 times. The gap is too small to invalidate accounting earnings, but large enough to matter for valuation discipline.

Historical valuation says the present is demanding. Belimo’s own investor data show year-end P/E ratios between 41.6 times and 61.6 times in 2021-2025; the current trailing multiple of about 61.2 times is back at the top of that range. On a market-cap-to-sales basis, the current valuation of about 9.9 times 2025 sales is above recent year-end levels implied by Belimo’s own market-cap history. Peer valuation does not rescue the stock. Schneider is rich too at about 37.8 times, but Belimo still sits on a much higher multiple than large diversified peers such as Siemens and Johnson Controls. Paying a premium for focus and returns is sensible. Paying double the multiple of credible industrial alternatives requires a very long runway of upside surprises.

Dimension Conservative Base Optimistic
Revenue and margin assumptions 2026-2028 sales growth slows to high single digits as data-center mix normalizes; EBIT margin settles around 19.5%–20.0% Mid-teens 2026 growth moderates to low teens; core retrofit stays healthy; EBIT margin holds around 20.5%–21.0% Data-center liquid cooling remains a structural share gainer; EBIT margin reaches 21.5%–22.0% on richer mix
Cash-flow assumptions Elevated capex persists and owner earnings lag reported EPS; 2027 owner EPS about CHF 15.0 Capacity spending begins to normalize; 2027 owner EPS about CHF 16.8 Mix, scale, and easing capex intensity lift 2027 owner EPS to about CHF 18.2
Multiple assumptions 40x owner earnings 43x owner earnings 44x owner earnings
Key catalysts EMEA recovery disappoints less than feared; retrofit stays firm 2026 guidance is met cleanly; data-center contribution remains large but orderly More hyperscaler wins, liquid-cooling adoption broadens, and mix keeps lifting margins
Key risks Data-center pulse fades into ordinary growth; multiple compresses sharply FX, tariffs, and OEM normalization erase upside to reported growth Market is still underestimating data-center duration, but execution must stay nearly flawless
Implied upside from current price downside about 34% to fair value near CHF 600 downside about 20% to fair value near CHF 720 downside about 12% to fair value near CHF 800
Permanent-loss risk trigger: data-center growth stalls and the multiple falls toward 35x-40x trigger: growth remains good but not great, and the premium multiple mean-reverts trigger: liquid cooling stays strong but value capture shifts toward broader system vendors

This is valuation-scenario analysis within a research framework, not investment advice. The scenarios use owner earnings rather than reported EPS because current capex is meaningfully above a maintenance level, even though the difference stays small enough that reported profits remain useful.

The expectation gap is concentrated in a few metrics. First, data-center sales as a share of group growth. Second, gross-margin and EBIT-margin resilience as the business scales manufacturing and support in the Americas. Third, whether elevated capex starts converting back into higher free cash flow or simply stays elevated. Fourth, the pace of EMEA recovery and the normalization of OEM restocking. At the next major result, the market will likely care more about the durability of data-center intensity than about one quarter of normal HVAC demand. That is a sign of narrative concentration, and narrative concentration is a valuation risk when the stock already trades near peak multiples.

The main permanent-loss risks are specific. One is a capex-cycle air pocket in AI data centers. Another is competitive value migration upward into fuller cooling systems, where vertically broader companies have more to sell. A third is simple multiple compression in a lower-rate-of-change growth environment. A fourth is FX: Belimo reports in CHF, sources globally, and sells globally, so strong Swiss-franc translation can mute reported growth and pressure margins. Belimo explicitly warned that 2026 margins would be affected year on year by FX fluctuations. Governance risk looks relatively low by industrial standards: one-share-one-vote capital structure, a stable anchor holder, and no visible pattern of aggressive M&A or balance-sheet stretching. The main governance question is simpler: whether management keeps speaking soberly about data centers once the market clearly wants a bigger story. So far, the disclosures remain comparatively restrained.

Tracking indicator Normal range Alert threshold
Local-currency sales growth High single digits to low teens over a cycle Below 8% for a full year outside recession conditions
EBIT margin High teens to low 20s Below 19% for two consecutive reporting periods
Data-center narrative balance Large contributor, but not sole driver Management commentary implies cooling alone is carrying the story
Free cash flow ex term deposits Positive and broadly self-funded Two consecutive periods of weak FCF without visible capex normalization
Net liquidity / balance-sheet strength Net cash or very low leverage Loss of net liquidity combined with no margin payoff
EMEA recovery and OEM normalization Gradual improvement Restocking reverses and EMEA still fails to recover
Valuation vs. history Premium justified by quality P/E back above low-60s with no new earnings surprise
Swiss 10-year yield vs. flat-earnings return Equity premium should remain meaningful Flat-earnings equity return close to bond yield

The dashboard matters because Belimo is no longer a stock you can own on autopilot at any price. A flat-earnings thought experiment makes that clear. If EPS were merely flat for three years and the stock de-rated to about 45 times earnings, still far from a distressed multiple, the share price would be roughly CHF 665, implying a negative annualized return near 10%. Switzerland’s 10-year government bond yield was about 0.24% on 2026-06-26. On that test, there is no margin of safety at today’s price.

Cross-Synthesis Summary

Belimo’s long history proves one capability above all others: it can take a small control point inside a larger system and make that control point economically indispensable. That is harder than it sounds. Many industrials can produce an actuator or valve. Far fewer build the channel trust, product breadth, service response, configuration discipline, and steady innovation needed to turn that device into the default premium choice across both OEM and contracting channels. Belimo’s 50-year journey and its steady returns on capital say the company got here by staying concentrated where concentration actually helped, not through debt, roll-up M&A, or one lucky cycle.

Those success factors are still present. The retrofit-and-efficiency franchise is real, durable, and backed by structural regulation and energy economics. The data-center opportunity is also real. What is less certain is the slope and duration of the new curve, and that distinction is where the stock case lives or dies. The market is not misjudging whether Belimo is a good business; what it may be misjudging is how much of the 2025 acceleration should be capitalized as a permanent new growth baseline rather than as the front-loaded phase of a capacity boom. Belimo itself is behaving sensibly: it is hiring, expanding capacity, opening test and experience centers, and speaking about collaborations with leading operators and chip makers. That is exactly how a serious supplier should behave when a big architectural shift arrives. It does not automatically follow that every premium point in the current multiple is deserved.

The horizontal view sharpens the judgment. Belimo’s real advantage over Schneider, Siemens, Johnson Controls, and Honeywell is focus, neutrality, and component-level trust, not breadth. That advantage is strongest in the legacy building-HVAC franchise and in retrofit work, where customers value compatibility, lead time, and life-cycle reliability. It is somewhat weaker in liquid-cooling systems, where broader platforms can bundle more of the solution. That does not erase Belimo’s edge, but it does mean the most exciting growth pocket is also the one in which Belimo’s niche purity provides slightly less insulation. At the current valuation, that matters more than it did two years ago.

The market is most likely underestimating two things and overestimating one. It may be underestimating how durable the retrofit franchise is even if data-center growth cools. It may also be underestimating how much current capex is growth capex rather than a sign of weakening economics. But it is probably overestimating how much downside protection exists if data-center growth becomes merely strong rather than extraordinary. The stock is rewarding a lot of future success in advance. The conclusion lands in an awkward but honest place: Belimo remains an excellent company, and the stock price already assumes excellence plus a long AI-cooling runway.

The most important variables by horizon separate cleanly. Over the next year, the variables that matter are data-center order intensity, 2026 margin delivery above 20%, FX translation, and whether capex starts showing more visible cash-flow payoff. Over the next three years, the question is whether data-center cooling becomes a permanently larger slice of the business without attracting punishing competitive responses. Over five years, the central question is whether Belimo is still primarily a retrofit-and-HVAC efficiency compounder with a valuable data-center vertical, or whether it becomes meaningfully redefined by data centers. The former is a safer business. The latter is a more exciting story, but one that can produce bigger valuation mistakes in both directions.

The stock would become a better investment under two broad conditions. One is price: a materially lower entry that restores a margin of safety. The other is proof: more evidence that data-center growth is broadening beyond a few architectural wins into a durable installed-base opportunity with repeatability, aftermarket relevance, and limited system-level disintermediation. The original judgment would need re-examination if Belimo’s EBIT margin fell below the high teens for more than a short spell, if free cash flow stayed weak after the current capacity buildout, if management’s data-center language became promotional while the cash numbers lagged, or if broader system vendors started clearly capturing more of the liquid-cooling profit pool at the expense of component suppliers.

The bull case rests on four facts. Sales reached CHF 1.12 billion in 2025 with 20.8% EBIT margin and 27.8% ROIC, proving the old franchise remains unusually good. Data centers were about 17% of sales in 2025 and became a strategic pillar, showing the new growth engine is already financially meaningful. Belimo still has a fortress-style balance sheet with net liquidity and a 70.8% equity ratio even during elevated capex. The retrofit market remains large because building energy efficiency is still underpenetrated and regulation is moving in Belimo’s favor.

The bear case also rests on four facts. The stock trades around 61 times trailing earnings and near the top of its own recent valuation range. Owner earnings are lower than accounting EPS because capex is currently elevated, making the effective valuation even richer. The 2025 acceleration had an outsized data-center contribution, so any moderation there would hit both growth and narrative. Competition around liquid cooling is intensifying as larger system vendors and infrastructure specialists invest more aggressively.

A three-year pre-mortem writes itself too easily. Script one: by 2027, hyperscaler and AI-chip deployment stays healthy but the frantic first build cycle cools, and several new liquid-cooling architectures push more value into broader system packages. Belimo’s data-center growth slows from extraordinary to ordinary, group sales growth falls back toward high single digits, EBIT margin slips from 20.8% to around 18.5%–19.0%, and the multiple compresses from about 61 times trailing earnings toward a still-premium 35–40 times. The stock could plausibly halve even without a broken balance sheet. Script two: Europe recovers only modestly, OEM normalization turns into an air pocket, and management keeps capex elevated to support a pipeline that arrives later than planned. Free cash flow stays soft, the market stops paying in advance for distant growth, and the valuation compresses before earnings catch up. Neither script requires fraud, debt, or a collapsed industry. They only require a very good company to stop being perfect at the same time the market stops paying a peak multiple.

Belimo is worth owning at the right price because the underlying business has proven exactly the scarce things long-term investors want: real returns on capital, strong niche positioning, stable governance, and a product set tied to energy efficiency rather than discretionary fashion. At the current price, though, the valuation leaves too little room for a pause in data-center capex, a slower conversion of elevated capex into free cash flow, or a simple reversion from extreme enthusiasm to ordinary admiration. My main worry is the market’s move to capitalize a hot new vertical as though it now defines the whole company, not a demand collapse.

What would change my mind quickly is proof that Belimo can keep compounding owner earnings through this capex phase while the liquid-cooling opportunity broadens across customers, geographies, and architectures without obvious value leakage to system integrators, not a higher target price from another broker. Short of that, the stock belongs on a disciplined watchlist rather than in the “good company, buy anyway” bucket.

【Company-profile scores】

  • Fundamental quality: high
  • Growth: high
  • Moat: strong
  • Financial soundness: strong
  • Management credibility: high
  • Valuation attractiveness: low
  • Risk level: medium
  • Suitable investor type: long-term growth

【Investment rating】

  • Rating: Watch
  • One-line thesis: Belimo’s core franchise is excellent, but a near-peak multiple already discounts much of the AI data-center cooling upside.
  • 【Ideal Buy Price】450–480 CHF Basis: at least a 20% margin of safety below the conservative fair value anchor of about CHF 600 per share.
  • Acceptable hold price: 610–830 CHF
  • Clearly overvalued price: 880 CHF and above
  • Current-price classification: clearly overvalued
  • Whether to wait for a better price: yes. A buy becomes interesting below roughly CHF 480, or sooner only if owner-earnings growth and free-cash-flow conversion surprise materially to the upside for more than one reporting period. The opportunity cost of waiting is missing further momentum if AI-cooling enthusiasm stays intense.
  • Target holding horizon: 3–5 years
  • Expected annualized return: conservative about -13% over 3 years to the conservative fair-value anchor; base about -7%; optimistic about -4%
  • Max-loss risk: roughly 45%–50% in a combined scenario where data-center growth normalizes, EBIT margin slips back into the high teens, and the multiple compresses toward 35x-40x
  • Reassessment-trigger signals: EBIT margin below 19% for two consecutive reporting periods; free cash flow ex term deposits remains weak after capex should normalize; clear evidence that broad liquid-cooling platforms are internalizing Belimo’s control points; management cuts the mid-teens 2026 local-currency growth outlook; net liquidity disappears without a visible uplift in earnings power.

【Valuation Range】

  • current: 904 (close as of 2026-06-26)
  • bear (conservative · ideal buy zone): [450, 480]
  • base (fair · acceptable hold zone): [610, 830]
  • bull (optimistic · above the clearly-overvalued line): [880, 980]

Open questions and limitations: I could verify the 1995 SIX listing and later ownership structure, but not the original IPO pricing and capital raised from accessible primary documents. Belimo’s public reporting is semiannual and annual rather than fully quarterly, so “last four quarters” analysis is partly reconstructed from half-year and annual disclosures. The exact 2024 share of sales from data centers was cited in secondary market commentary more often than in easily extractable primary filings, so I relied on Belimo’s own 2025 share disclosure and strategic commentary rather than forcing a weaker number.

Primary sources used in this report were Belimo’s 2025 annual report, 2025 first-half report, investor information pages, corporate-governance disclosures, equity story, and capital-markets-day materials. Industry context was grounded mainly in IEA, DOE, ECB, SNB, Uptime Institute, and Dell’Oro materials, with competitor references taken from company reporting and selected Reuters coverage where that added current market context.

Other tickers mentioned

  • JCI.US: broad building-systems peer and a useful valuation reference for mission-critical HVAC and controls exposure
  • SU.PA: broadest European listed analogue in electrification, data-center infrastructure, and building management
  • SIE.DE: Siemens Smart Infrastructure is a major integrated competitor in smart buildings and infrastructure
  • HON.US: diversified building-automation comparator with strong segment economics but less pure-play focus
  • ETN.US: mentioned as a growing data-center thermal and power competitor after the Boyd thermal acquisition
  • VRT.US: liquid-cooling infrastructure competitor whose expansion highlights system-level competition around AI data centers

This report is based on public information and does not constitute investment advice. Markets carry risk; invest with caution.

HVAC controlsbuilding automationdata-center coolingliquid coolingquality compoundervaluationSwitzerland
Reader Q&A10

Baillie Framework · Ten Questions for Growth Investing

10

Hunting ten-year five-baggers among great growth stocks — pressing the upside question: "Can it get much bigger?"

  • How high is its market ceiling — is it growing a slice of an existing pie, or creating an entirely new market?6/10

    Belimo addresses a large and structurally growing market, but as a deliberate niche player rather than a TAM-maximizer. Its core is the field-device layer of HVAC: actuators, control valves, sensors and meters. The durable pie is energy-efficiency retrofits, where buildings consume about 30% of global final energy, regulation such as the EU's revised EPBD keeps tightening, high-performance controls can cut HVAC energy use by around 30%, and roughly 98% of buildings are existing installed base rather than new construction each year. Layered on top is a genuinely newer market: AI data-center liquid cooling, where Belimo estimates a content opportunity of CHF 40 million to CHF 60 million per gigawatt of added capacity. So Belimo is both enlarging its slice of a huge existing pie and riding a new market, though its self-imposed focus on the component layer caps how big it can become relative to the integrated giants.

    Jun 27, 2026
  • Can its revenue at least double over the next five years? Is that growth driven mainly by volume, price, or new businesses?5/10

    Doubling 2025 sales of CHF 1,120.8 million within five years requires a sustained local-currency CAGR of roughly 15%. Belimo guides mid-teens local-currency growth for 2026 and grew 23.3% in 2025, so the optimistic path does reach a double. But the report's own base and conservative scenarios have growth moderating to low teens and then high single digits as the data-center pulse normalizes, which lands short of a double. Growth is driven mainly by volume (data-center build-out plus retrofit), helped by some pricing and the expanding sensors-and-meters and digital range. A double is achievable only if AI-cooling demand proves structurally durable rather than reverting to an ordinary capex cycle.

    Jun 27, 2026
  • Five years out, what takes over as the next growth engine? Does that “second curve” exist today?6/10

    The second curve already exists and is financially meaningful: data centers were about 17% of 2025 sales, are now a formal strategic pillar with a dedicated global team, an energy-valve product roadmap, and new application and experience centers in Danbury and Singapore. Beyond data centers, the sensors-and-meters expansion, the digital ecosystem around the installed base, and the multi-year New Digital Generation actuator rollout add further legs. The honest caveat is that the central uncertainty is the slope and duration of the data-center curve, not its existence: the whole stock case turns on whether 2025's acceleration is a permanent new baseline or the front-loaded phase of a capacity boom.

    Jun 27, 2026
  • What is its core competitive advantage? Will that moat widen or narrow over the next three to five years?7/10

    Belimo's moat rests on four reinforcing sources: product reliability at a tiny relative cost to the customer (a valve or actuator is cheap to buy but expensive to fail), channel neutrality (because Belimo refuses to sell the whole building stack, contractors, integrators and OEMs can buy from it without feeding a direct competitor), decades of niche application know-how, and localized service with roughly 48-hour delivery. That moat shows up as 27.8% ROIC and an 88%-outsourced, asset-light cost structure. It is strong and likely to stay wide in the legacy HVAC and retrofit franchise. The qualifier is the hot new segment: as liquid cooling becomes a systems problem rather than only a component problem, value can migrate up to broader platforms such as Schneider and Vertiv, so the moat is somewhat narrower exactly where growth is fastest.

    Jun 27, 2026
  • If its core business were disrupted, does it have the DNA to reinvent itself? How does it handle mistakes and bad news?6/10

    Belimo's 50-year history is one of steady evolution within its niche: from air-side actuators to water-side control valves, then sensors and meters, then a digital layer, and now data-center cooling. It tends to reinvent by promoting long-tenured internal operators rather than importing outsiders, which preserves the playbook but is incremental rather than radical. On mistakes and bad news, management's disclosures stay comparatively restrained and sober even as the market clearly wants a bigger AI story, which is a healthy behavioral signal. The reinvention DNA is real but moderate: the company has adapted to architecture shifts, not survived an existential disruption to its core.

    Jun 27, 2026
  • Does management — the founders especially — hold a long-term view with interests deeply tied to the company? Are they willing to sacrifice current profit for the payoff five to ten years out?6/10

    There is no active founder: the founders' wealth went into the charitable U.W. Linsi Foundation in 1997, and Group Linsi remains the largest holder at 19.55% of capital under a clean one-share-one-vote structure. That foundation anchor brings an unusually long time horizon and stability, even if it is not founder-operator alignment. Management is long-tenured and internally grown (CEO Lars van der Haegen since 2017, CFO Markus Schurch since 2019, chair Patrick Burkhalter since 2019). Crucially, they are demonstrably willing to sacrifice near-term profit and free cash flow for later payoff: capex rose to CHF 86.8 million in 2025 to expand capacity, innovation spending runs around 7% of sales, and they are opening test and experience centers ahead of demand.

    Jun 27, 2026
  • If it disappeared tomorrow, how badly would customers miss it? Is the way it grows sustainable, without relying on harm to society or regulators?7/10

    Customers would miss Belimo acutely: its devices sit at a mission-relevant control point where reliability, fast availability and easy integration matter far more than the small invoice cost, and its neutrality means it is embedded across many system architectures and brands, so replacing it quickly across that installed base would be painful. The way it grows is also unusually clean and sustainable. Belimo makes money by helping buildings and data centers use less energy, with building automation cited as delivering 29% to 55% HVAC energy savings depending on sophistication. That puts the company on the same side as tightening efficiency regulation rather than against it, so growth does not depend on harming society or extracting from regulators.

    Jun 27, 2026
  • What are the unit economics of this business (gross margin, incremental returns)? Do they get better or worse at scale? Where does the money it earns go?7/10

    The unit economics are excellent and improve with scale. Belimo outsources about 88% of production cost and focuses internally on assembly, logistics, engineering and customization, so it is asset-light: volume growth lifts margins through procurement, assembly and mix rather than through a heavy owned-factory base. The result is 27.8% ROIC in 2025, a 20.8% EBIT margin, and operating cash flow that exceeded net income in four of the last five years. The honest caveat is current cash conversion: elevated growth capex (CHF 86.8 million in 2025) pushed owner earnings to about CHF 12.1 per share against reported EPS of CHF 14.77, and free cash flow has been volatile. Capital goes to capacity, R&D at roughly 7% of sales, and dividends.

    Jun 27, 2026
  • For it to rise fivefold in ten years, what conditions must all hold at once? Are they realistic? What expectations does today's share price already imply?3/10

    A five-fold rise in ten years from CHF 904 would need roughly 17% annualized price appreciation, which requires earnings to grow about five-fold and the multiple to stay near its current peak at the same time. Both at once are unrealistic. Mid-teens growth fading to low teens compounds to perhaps 3.5x-4x earnings over a decade, and the current trailing multiple of about 61x sits at the top of Belimo's own 41.6x-61.6x historical range and is far more likely to compress than to hold. The report models negative expected annualized returns at today's price (about -7% in the base case to -13% conservative, toward fair value), and a flat-earnings de-rating to a still-rich 45x implies roughly CHF 665. Today's price already discounts excellence plus a long AI-cooling runway.

    Jun 27, 2026
  • Why hasn't the market grasped all this yet — does it not understand, not respect it, or not see far enough? What would become the “narrative inflection point”?4/10

    For Belimo the usual Baillie angle is largely inverted: the market has not missed the story, it has embraced it. The stock re-rated to a peak multiple near 61x precisely because investors recognized the AI data-center cooling opportunity, and the narrative inflection arguably already fired (a June 2026 Morgan Stanley upgrade on stronger data-center assumptions lifted the shares about 8% in a day). The modest residual under-appreciation the report identifies is narrow: how durable the retrofit franchise is even if data-center growth cools, and how much current capex is growth rather than maintenance spending. But the dominant mispricing runs the other way, toward overvaluation, so little hidden positive is left for the market to wake up to.

    Jun 27, 2026
Ask about this report

Members can ask about this report; once answered it appears under "Reader Q&A" on this page. You can also highlight a passage in the text to ask about it directly.