This niche AI play is seeing business growth rates that are triple the pace of the data centers

October 12

As artificial intelligence fuels the boom in data center growth, investors are eyeing a new frontier: the companies keeping these digital powerhouses cool. nVent Electric , Vertiv and Modine Manufacturing have seen their stocks soar in 2024, buoyed by partnerships with tech giants investing billions in AI infrastructure. Despite the gains, Wall Street believes these cooling leaders have room to run as the fast-growing data center market they serve desperately requires liquid cooling to operate effectively. Shares of nVent are up 23% this year, while Vertiv and Modine have rallied 133% and 125%, respectively in 2024. Yet there’s been a lot of volatility in stocks with exposure to data centers. All three names experienced massive drawdowns that coincided with Nvidia’s sell-off on Sept. 3 — when the AI darling tumbled 10% in a single session — creating a buying opportunity, according to many analysts. That’s because historically, data centers used air cooling to manage the heat generated by traditional cloud applications. But as the AI boom continues using new chips like Nvidia’s graphics processing units to train AI models, they’re generating high density computing power, consuming far more energy, and producing more heat in the process. This shift is forcing data center operators to rethink their cooling strategies to help servers run at peak efficiency, and liquid cooling is emerging as the method of choice given it’s 25 times more effective than air-cooling. “The reality is data centers cannot run AI processing in any capacity without using liquid cooling,” said Dean Dray, analyst at RBC Capital Markets to CNBC. “The thermal dynamics of the heat generation in the chips have reached the stage where legacy air conditioning is no longer powerful enough for the concentrated heat that gets created.” Triple data center growth Vertiv and Modine are legacy air cooling players that entered the liquid cooling market through acquisitions, while nVent is a pioneer. Unlike traditional air cooling — which relies on air conditioners, fans and vents to blow cool air over racks of servers — the technology uses a liquid coolant to absorb and remove heat right where it’s generated. “The need for liquid cooling is not cannibalizing the need for mechanical (air) cooling,” Matt Summerville, an analyst at D.A. Davidson said in an interview. Instead, he expects data centers will use a hybrid of legacy air conditioning and liquid cooling systems to protect IT equipment from heat damage and for overall environmental control in data centers. Liquid cooling, still a nascent industry, is growing sales at a rate of 45% a year — three times faster than the 15% growth rate in data centers. The total addressable market for liquid cooling is roughly $3 billion, with about 5% of data centers using it, analysts said. They expect that to accelerate. “The AI-driven side of the liquid cooling market is expected to be in 25% of all data centers by 2028,” Summerville said. A liquid cooling pioneer As one of the top five companies in the world involved in data center cooling, nVent, is very well positioned to benefit, William Blair analyst Brian Drab said. The company has been in the liquid cooling business for well over a decade, giving it the time to refine and innovate its products. Originally invented 15 years ago for high-end mechanical equipment, nVent stumbled upon a major opportunity in data center cooling. NVT YTD mountain nVent shares year to date “They invented the liquid cooling business,” RBC Capital Markets analyst Dean Dray said, describing how data center operators discovered nVent’s products were exactly what was needed to cool high-powered servers. This kicked off relationships that nVent has “with literally all of hyperscale players,” and quietly made it a key partner in designing and testing thermal solutions for every generation of GPUs and chips, he explained. Dray said nVent is “very guarded” about those partnerships, but will eventually need to figure out how to “explain their market presence and all of the hyperscale players they’re doing business with to get investors comfortable that these relationships exist.” The company’s core product is a coolant distribution unit — what Drab called the “brains of the liquid cooling system connected to the racks in the data center.” This state-of-the-art liquid cooling technology “knows how hot a chip is and delivers liquid to it – and it’s doing it with thousands of chips throughout the data center,” Drab explained. He has an outperform rating on nVent with an $80 price target, or nearly 10% upside from Friday’s close. Currently, nVent’s total revenue exposure to data centers is 23%. Half of that comes from liquid cooling, which is growing more than 40% annually. The other half comes from the electrical equipment for data centers, which is growing 15% annually. A strong backlog of business Vertiv has a much larger exposure to liquid cooling, with 75% of its revenue tied to data centers. The company entered the market through the acquisition of CoolTerra in December 2023. Before that, it was primarily in legacy air conditioning. Jefferies’ analyst Saree Boroditsky estimated Vertiv’s data center revenue could grow at a compound annual growth rate of 20% over the next four years, well above the 9% to 12% top line growth management projected at its December 2023 investor day. VRT YTD mountain Vertiv shares year to date This week, Boroditsky initiated coverage of Vertiv with a buy and a price target of $125, or about 12% from where the stock closed Friday. The Jefferies analyst expects Vertiv earnings to grow at 24% CAGR through 2027 given its “strong incoming backlog,” which could provide upside to 2025 estimates. Boroditsky also noted the company’s $5 billion balance sheet capacity, which could be used for acquisitions or share buybacks, providing more upside for the stock. A newcomer to the space Modine is a third standout that historically had a rapidly growing air-cooling business. The company recently made its way into liquid cooling. In the beginning of 2024, Modine purchased intellectual property assets of TMG Core, a specialist in liquid cooling technology to accelerate data center growth. Modine’s second purchase this year was the addition of Scotts Springfield Manufacturing, a manufacturer of air handling units, adding more products to its data center solutions portfolio. MOD YTD mountain Modine shares year to date These acquisitions will help with Modine’s data center business, which is already on pace to grow about 50% in 2024 as management focuses on higher growth end markets like cooling solutions. At its investor day on Sept. 11, Modine provided a forecast for top-line CAGR of 18% to 22% through fiscal 2027 in its climate solutions segment where the data center business is housed, above its previous target range of 15% to 20%. A major reason behind the higher targets is the expansion of Modine’s partnerships with hyperscalers. The company recently signed a deal with its third major customer. “Being able to continue to penetrate these AI pioneers is absolutely going to be key for Modine to maintain market growth on an organic basis,” Summerville said. He added, the company is broadening its reach with plans to serve the Asia Pacific market, where data center activity is ramping up. Another catalyst for Modine is the company’s commitment to having a CDU available in the market by the end of its fiscal year in March. Summerville gauges, “early excitement around the launch of their cooling distribution unit” as big data center players bring more capacity online. Following Modine’s investor day, Summerville updated his price target on Modine stock to $155 from $140, implying 15% upside from Friday’s close, while maintaining a buy rating on shares.

A large hallway with supercomputers inside a server room data center.

Luza Studios | E+ | Getty Images

As artificial intelligence fuels the boom in data center growth, investors are eyeing a new frontier: the companies keeping these digital powerhouses cool.

nVent Electric, Vertiv and Modine Manufacturing have seen their stocks soar in 2024, buoyed by partnerships with tech giants investing billions in AI infrastructure. Despite the gains, Wall Street believes these cooling leaders have room to run as the fast-growing data center market they serve desperately requires liquid cooling to operate effectively.

Shares of nVent are up 23% this year, while Vertiv and Modine have rallied 133% and 125%, respectively in 2024. Yet there’s been a lot of volatility in stocks with exposure to data centers. All three names experienced massive drawdowns that coincided with Nvidia’s sell-off on Sept. 3 — when the AI darling tumbled 10% in a single session — creating a buying opportunity, according to many analysts.

That’s because historically, data centers used air cooling to manage the heat generated by traditional cloud applications. But as the AI boom continues using new chips like Nvidia’s graphics processing units to train AI models, they’re generating high density computing power, consuming far more energy, and producing more heat in the process. This shift is forcing data center operators to rethink their cooling strategies to help servers run at peak efficiency, and liquid cooling is emerging as the method of choice given it’s 25 times more effective than air-cooling.

“The reality is data centers cannot run AI processing in any capacity without using liquid cooling,” said Dean Dray, analyst at RBC Capital Markets to CNBC. “The thermal dynamics of the heat generation in the chips have reached the stage where legacy air conditioning is no longer powerful enough for the concentrated heat that gets created.”

Triple data center growth

Vertiv and Modine are legacy air cooling players that entered the liquid cooling market through acquisitions, while nVent is a pioneer. Unlike traditional air cooling — which relies on air conditioners, fans and vents to blow cool air over racks of servers — the technology uses a liquid coolant to absorb and remove heat right where it’s generated.

“The need for liquid cooling is not cannibalizing the need for mechanical (air) cooling,” Matt Summerville, an analyst at D.A. Davidson said in an interview. Instead, he expects data centers will use a hybrid of legacy air conditioning and liquid cooling systems to protect IT equipment from heat damage and for overall environmental control in data centers.

Liquid cooling, still a nascent industry, is growing sales at a rate of 45% a year — three times faster than the 15% growth rate in data centers. The total addressable market for liquid cooling is roughly $3 billion, with about 5% of data centers using it, analysts said. They expect that to accelerate.

“The AI-driven side of the liquid cooling market is expected to be in 25% of all data centers by 2028,” Summerville said.

A liquid cooling pioneer

As one of the top five companies in the world involved in data center cooling, nVent, is very well positioned to benefit, William Blair analyst Brian Drab said.

The company has been in the liquid cooling business for well over a decade, giving it the time to refine and innovate its products. Originally invented 15 years ago for high-end mechanical equipment, nVent stumbled upon a major opportunity in data center cooling.

data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==

nVent shares year to date

“They invented the liquid cooling business,” RBC Capital Markets analyst Dean Dray said, describing how data center operators discovered nVent’s products were exactly what was needed to cool high-powered servers. This kicked off relationships that nVent has “with literally all of hyperscale players,” and quietly made it a key partner in designing and testing thermal solutions for every generation of GPUs and chips, he explained.

Dray said nVent is “very guarded” about those partnerships, but will eventually need to figure out how to “explain their market presence and all of the hyperscale players they’re doing business with to get investors comfortable that these relationships exist.”

The company’s core product is a coolant distribution unit — what Drab called the “brains of the liquid cooling system connected to the racks in the data center.” This state-of-the-art liquid cooling technology “knows how hot a chip is and delivers liquid to it – and it’s doing it with thousands of chips throughout the data center,” Drab explained. He has an outperform rating on nVent with an $80 price target, or nearly 10% upside from Friday’s close.

Currently, nVent’s total revenue exposure to data centers is 23%. Half of that comes from liquid cooling, which is growing more than 40% annually. The other half comes from the electrical equipment for data centers, which is growing 15% annually.

A strong backlog of business

Vertiv has a much larger exposure to liquid cooling, with 75% of its revenue tied to data centers. The company entered the market through the acquisition of CoolTerra in December 2023. Before that, it was primarily in legacy air conditioning.

Jefferies’ analyst Saree Boroditsky estimated Vertiv’s data center revenue could grow at a compound annual growth rate of 20% over the next four years, well above the 9% to 12% top line growth management projected at its December 2023 investor day.

data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==

Vertiv shares year to date

This week, Boroditsky initiated coverage of Vertiv with a buy and a price target of $125, or about 12% from where the stock closed Friday.

The Jefferies analyst expects Vertiv earnings to grow at 24% CAGR through 2027 given its “strong incoming backlog,” which could provide upside to 2025 estimates. Boroditsky also noted the company’s $5 billion balance sheet capacity, which could be used for acquisitions or share buybacks, providing more upside for the stock.

A newcomer to the space

Modine is a third standout that historically had a rapidly growing air-cooling business. The company recently made its way into liquid cooling. In the beginning of 2024, Modine purchased intellectual property assets of TMG Core, a specialist in liquid cooling technology to accelerate data center growth. Modine’s second purchase this year was the addition of Scotts Springfield Manufacturing, a manufacturer of air handling units, adding more products to its data center solutions portfolio.

data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///ywAAAAAAQABAAACAUwAOw==

Modine shares year to date

These acquisitions will help with Modine’s data center business, which is already on pace to grow about 50% in 2024 as management focuses on higher growth end markets like cooling solutions.

At its investor day on Sept. 11, Modine provided a forecast for top-line CAGR of 18% to 22% through fiscal 2027 in its climate solutions segment where the data center business is housed, above its previous target range of 15% to 20%.

A major reason behind the higher targets is the expansion of Modine’s partnerships with hyperscalers. The company recently signed a deal with its third major customer.

“Being able to continue to penetrate these AI pioneers is absolutely going to be key for Modine to maintain market growth on an organic basis,” Summerville said. He added, the company is broadening its reach with plans to serve the Asia Pacific market, where data center activity is ramping up.

Another catalyst for Modine is the company’s commitment to having a CDU available in the market by the end of its fiscal year in March. Summerville gauges, “early excitement around the launch of their cooling distribution unit” as big data center players bring more capacity online.

Following Modine’s investor day, Summerville updated his price target on Modine stock to $155 from $140, implying 15% upside from Friday’s close, while maintaining a buy rating on shares.

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This niche AI play is seeing business growth rates that are triple the pace of the data centers

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