Data center growth, with scaling tests ahead
- Modine is trying to become a focused climate solutions company, led by data center cooling.
- Climate Solutions sales grew 43% in fiscal 2026 to $2.06 billion, while Performance Technologies sales fell 3% to $1.13 billion.
- The main debate is no longer demand. It is whether Modine can scale production without hurting margins.
- Management guided fiscal 2027 sales growth of 20% to 35% and adjusted EBITDA growth of more than 40%.
- The planned Performance Technologies spin-off could sharpen the story, but it also makes the remaining company less diversified.
Fast growth, tight execution
Modine has a clear plan: move away from a mixed industrial thermal business and become a cleaner climate solutions company. The center of that plan is data center cooling, where demand has been strong enough to push Climate Solutions sales up 43% in fiscal 2026.
The bull case is simple. If fiscal 2027 guidance proves right, Modine may show that data center growth is durable and profitable. Management expects sales growth of 20% to 35% and adjusted EBITDA growth of more than 40%, with adjusted EBITDA targeted at $650 million to $680 million. A planned $100 million U.S. capacity expansion is meant to fix component shortages and production strain.
The bear case is also clear. The same growth that made the story exciting has hurt margins. Climate Solutions gross margin fell 350 basis points to 25.4% in fiscal 2026, with management pointing to temporary operating inefficiencies and component shortages. If those issues last longer than expected, higher sales may not turn into the profit growth investors expect.
The stock also has a price problem. Investors are already focused on the data center story, so Modine needs to hit its targets. A delayed spin-off, weak margin recovery, or order changes from a large strategic customer would make the current setup much harder to defend.
Cooling the AI buildout
Modine sells systems that manage heat and air. Its highest-growth work is cooling equipment for data centers, including hyperscale and colocation customers. These customers need large, reliable cooling systems because servers create a lot of heat.
The company is using an 80/20 strategy, which means focusing more money and attention on the products and customers with the best profit and growth potential. That is why the planned spin-off and merger of Performance Technologies with Gentherm matters. If it closes by the end of calendar 2026 as planned, Modine should be much more tied to data centers and commercial HVAC.
Starting April 1, 2026, Modine stopped treating Climate Solutions as one broad reporting segment. It will report Data Centers and Commercial HVAC separately. That should help investors see how much of the business depends on the data center buildout.
The model breaks if Modine cannot build enough product on time, at good margins. The company disclosed supply shortages for some data center product components in the fourth quarter of fiscal 2026. Those shortages hurt production schedules for the first quarter of fiscal 2027.
What Modine sells
Data center cooling
This is the main growth engine. Demand from data center customers drove most of the Climate Solutions growth in fiscal 2026.
Commercial HVAC
These are heating, ventilation, and cooling systems for commercial buildings and specialized uses. Modine plans to report this business separately from Data Centers.
Direct-fired heating and make-up air systems
Modine added more of these capabilities through recent acquisitions. They broaden the climate products it can sell to commercial and industrial customers.
Desiccant dehumidification
This technology helps control moisture in the air. It can matter in specialized buildings where humidity control is a core need.
Performance Technologies thermal management
This legacy segment serves on-highway and off-highway heavy-duty equipment. It is planned to be spun off and combined with Gentherm.
The mix before the split
Shares use fiscal 2026 segment sales: Climate Solutions at $2.06 billion and Performance Technologies at $1.13 billion. Starting fiscal 2027, Modine plans to report Data Centers and Commercial HVAC separately, so this mix is a bridge, not the future view.
What could break the story
Scaling strain lasts too long
High impact · Medium oddsModine grew fast, but Climate Solutions gross margin fell 350 basis points to 25.4% in fiscal 2026. Management blamed temporary operating inefficiencies from rapid data center capacity expansion and higher material costs. If these costs stay high, sales growth may not lift profits enough.
Component shortages delay shipments
High impact · Medium oddsThe company disclosed shortages of certain data center product components in the fourth quarter of fiscal 2026. Those shortages were expected to hurt production schedules in the first quarter of fiscal 2027. Modine is investing $100 million in U.S. capacity, but that plan still has to work.
One customer becomes too important
High impact · Medium oddsModine has a long-term capacity agreement with one strategic data center customer. The company expects more than $4 billion of data center cooling product sales to that customer during calendar years 2027 through 2029. If that customer delays or buys less than planned, the growth plan could miss by a lot.
Spin-off does not close as planned
Medium impact · Medium oddsThe plan to spin off Performance Technologies and combine it with Gentherm is central to the cleaner story. If the transaction is delayed or fails, Modine stays more complex for longer. That could slow any valuation re-rating investors expect from a more focused climate business.
High expectations leave little room
Medium impact · Medium oddsManagement gave strong fiscal 2027 targets, including sales growth of 20% to 35% and adjusted EBITDA growth of more than 40%. That raises the bar. If growth is only good, rather than very strong, the stock could still react badly.
In one breath
What does Modine Manufacturing do?
Modine makes systems that move and control heat and air. Its fastest-growing business is cooling equipment for data centers, while it also sells commercial HVAC products and legacy thermal systems for heavy-duty equipment.
Why is Modine tied to data centers?
Data centers need serious cooling because servers create heat. Modine sells cooling products to hyperscale and colocation data center customers, and that demand drove most of the Climate Solutions growth in fiscal 2026.
What is the Gentherm transaction?
Modine plans to spin off its Performance Technologies segment and combine it with Gentherm in a Reverse Morris Trust transaction. In plain English, that is a tax-efficient way to separate the legacy thermal business while leaving Modine focused on climate solutions.
What should investors watch next?
The key signals are the spin-off closing on time, margin recovery in the new Data Centers segment, and progress against fiscal 2027 guidance. Component shortages and customer concentration are the main warning lights.