Artificial intelligence has already sparked a supercycle across chips, software, cloud infrastructure, and personal devices. But within that broader wave, a quieter revolution is building momentum: liquid cooling. As AI workloads push data centers to their thermal limits, the companies that solve the heat problem stand to capture billions in new spending. One name that keeps surfacing at the top of that list is Vertiv Holdings (NYSE: VRT).
Why Cooling Is the Next Bottleneck
The AI infrastructure buildout is staggering in scale. In 2026 alone, hyperscalers like Microsoft, Amazon, Alphabet, and Meta are forecast to spend up to $700 billion in combined capital expenditures, much of it directed at data center construction and GPU procurement. Nvidia's CEO Jensen Huang has suggested the company's AI chip backlog could approach $1 trillion by 2027. But all those processors generate extraordinary amounts of heat, and traditional air-cooling systems are increasingly unable to keep up.
That's where liquid cooling enters the picture. By circulating fluid directly to or near the hottest components in a server rack, liquid-cooling systems can dissipate heat far more efficiently than air alone. The technology isn't new, but the explosion of AI workloads has made it essential. According to management commentary from Eaton — another major player in the space — the global liquid-cooling market could grow at roughly 35% annually through 2028. What was once a niche engineering solution is rapidly becoming standard infrastructure for any serious AI deployment.
Vertiv's Position in the Value Chain
Vertiv specializes in power management, thermal management, and integrated infrastructure solutions for data centers. The company provides everything from uninterruptible power supplies to precision cooling systems, including the liquid-cooling technology that next-generation AI facilities increasingly require. Crucially, Vertiv has a strategic partnership with Nvidia, placing it directly in the supply chain as hyperscalers race to deploy GPU clusters at scale.
The numbers reflect that positioning. In the fourth quarter of 2025, Vertiv reported organic order growth of 252% year over year. Its total backlog more than doubled in a single year, reaching a record $15 billion — composed of legally binding purchase orders with a 12- to 18-month delivery window. Revenue for the quarter rose nearly 23% to $2.88 billion, while adjusted earnings per share climbed 37%.
Looking ahead, management has guided for approximately $13.5 billion in 2026 revenue at the midpoint, representing about 28% organic growth. Adjusted EPS is projected around $6.02, implying 43% earnings growth. Free cash flow is expected to reach as high as $2.3 billion. These aren't speculative projections — they're underpinned by a massive and growing backlog.
System-Level Wins Are Boosting Margins
What makes Vertiv's growth story particularly compelling is the shift toward system-level orders. Rather than selling individual cooling units or power components, the company is increasingly winning contracts for integrated solutions that cover entire data center buildouts. Products like SmartRun, a prefabricated power and cooling system, and OneCore, an end-to-end infrastructure platform, allow hyperscalers to deploy modular 12.5-megawatt building blocks that can scale to multi-gigawatt sites.
These system-level deals carry higher margins than point-product sales and deepen customer relationships. As AI data centers grow more complex and power-intensive, the demand for tightly integrated infrastructure is only accelerating. Liquid cooling is now a component of most AI-related customer engagements at Vertiv, underscoring how central the technology has become.
Valuation Still Has Room
Despite a 238% gain over the past year and a 62% surge in early 2026, Vertiv's valuation hasn't stretched to the extremes seen in many AI-adjacent names. The stock trades at a price-to-sales ratio of roughly 10 — elevated by traditional industrial standards, but modest compared to high-growth AI software peers. If the company delivers on its 2026 guidance and the market rewards that execution with even a slight multiple expansion, there could be meaningful upside remaining.
The Takeaway
The AI supercycle has captured investor attention for years, but much of the focus has been on the chips and the models. The infrastructure layer — particularly thermal management — is where the next wave of outsized growth may emerge. Liquid cooling is transitioning from a nice-to-have to a must-have, and Vertiv Holdings is positioned squarely at the center of that shift. For investors looking to ride the AI wave beyond the obvious semiconductor plays, this is a name worth watching closely.
