The company that boxes the AI boom
Almost none of the glamorous parts of artificial intelligence would work without a humble category of hardware: the metal enclosure. Every server, switch, and power unit inside a data center has to live in a protective housing that shields it from heat, dust, and electrical interference. nVent Electric (NVT) is one of the largest makers of those enclosures and the electrical fastening and protection systems around them.
It is an unglamorous business that has become one of the quiet winners of the AI buildout, because every new data center needs a mountain of the stuff nVent makes. That is why the Angel Publishing Homestacks promotion lists it as one of its three supply-chain picks.
What nVent actually makes
nVent was spun out of Pentair in 2018, and it operates in three main segments. Enclosures hold electrical and networking equipment and keep it safe. Electrical and fastening solutions include the connectors, fasteners, and heat-shrink systems that hold installations together. Thermal management covers the cooling of sensitive electronics, which matters enormously in dense AI server racks.
The data center connection runs through all three. Modern AI facilities need thousands of enclosures for their racks and power distribution units, and they need cooling systems that can handle the heat of dense GPU clusters. That is why data centers now account for roughly 40% of nVent’s revenue, a share that has climbed steadily as the AI buildout accelerated.
Where Homestacks fits in
The Homestacks promotion argues that AI compute will shift from centralized data centers to a distributed appliance installed on new homes, a device the pitch calls a Homestack. The real product behind that name is SPAN’s XFRA, an outdoor unit about the size of an air-conditioning compressor that pairs NVIDIA Blackwell GPUs with a smart electrical panel and a home battery.
Even in that distributed vision, enclosures and electrical protection do not go away. A home appliance full of expensive GPU hardware needs the same protective housings and thermal management that a data center rack does, which is the conceptual thread the promo pulls on. But the durable revenue driver for nVent is the centralized data center buildout, not a 100-unit housing pilot. SPAN’s own press release frames XFRA as a way to augment centralized data centers, and NVIDIA’s role is as a chip supplier rather than an investor.
The numbers that matter
nVent Electric trades around $151.98, with a market cap near $24.6 billion. The stock is up roughly 100% over the past year, and it carries a forward earnings multiple near 25x. That is a premium valuation for a maker of enclosures, and it reflects the market’s expectation that the data center buildout keeps running for years.
The honest frame is that nVent is a real, high-quality industrial business with a genuine data center tailwind, and it is priced like it. The Homestack story is an interesting angle on the same theme, but it is not what drives the revenue. For the broader picture, our explainer on AI data centers and our breakdown of the data center stocks behind the AI Black Paper pitch cover the equipment layer nVent sits inside.
From spin-off to AI supplier
nVent Electric came out of Pentair in 2018, when Pentair separated its electrical business from its water business. The electrical side became nVent, and it arrived as a focused industrial company with a portfolio of brands in enclosures, fastening, and thermal management. That focus has been the foundation of its data center growth, because the AI buildout touches all three of its segments at once.
The margin profile is what makes the company attractive to growth investors. Enclosures and thermal management are not commodity products; they are engineered solutions that data center operators specify for reliability, which supports pricing power. As data centers have grown to roughly 40% of revenue, the company’s earnings have compounded, and the market has rewarded that with a richer multiple, near 25x forward earnings and a stock up about 100% over the past year.
The risk sits in that valuation. A 25x multiple on an industrial supplier assumes the data center buildout keeps running for years, and a slowdown would compress it. The Homestack pilot is not the swing factor; the centralized buildout is. Our companion look at the nVent pick goes deeper on the supply chain.
That balance, a strong secular tailwind against a rich multiple, is the honest way to frame the stock. The data center share of revenue has climbed to roughly 40%, which gives the company a genuine claim on the AI buildout. The stock, up about 100% over the past year, has already priced in a good deal of that growth. What it has not priced in, and what the Homestacks promo leans on, is a future where distributed home appliances add a second demand stream on top of the centralized one. That would be a bonus if it materializes, not a requirement for the core business to keep compounding.
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