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VRT vs. APH: Which AI Infrastructure Stock Is the Smarter Buy Now?
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Key Takeaways
Vertiv is expanding AI data center capabilities through liquid-cooling and thermal management acquisitions.
APH saw IT datacom sales jump 81% organically in Q1 2026 on rising AI infrastructure demand.
VRT shares surged 133.2% YTD, while APH fell 4.4% amid macro and debt-related pressures.
Vertiv (VRT - Free Report) and Amphenol (APH - Free Report) are major players in the AI and data center infrastructure market, supplying critical power, cooling and connectivity solutions used in hyperscale and enterprise data centers. While Vertiv delivers critical power and cooling solutions for data centers fueling the AI boom, Amphenol provides the high-performance connectors and interconnect systems critical to data center operations.
So, VRT or APH — Which of these AI Infrastructure stocks has the greater upside potential? Let’s find out.
The Case for VRT
Vertiv is a leading provider of thermal and power management solutions for data centers that consume immense amounts of power. The increasing complexity of AI hardware and edge computing further increases the demand for power. Vertiv’s energy-efficient power and cooling solutions play a critical role in this aspect.
Acquisitions have played an important role in further expanding Vertiv’s footprint. The company recently announced the acquisition of Strategic Thermal Labs, a specialist in advanced liquid-cooling technologies, to strengthen its capabilities in high-density data center environments.
The deal enhances Vertiv’s engineering expertise in cold-plate design, server-side liquid cooling and thermal validation, enabling better system performance, reliability and lifecycle outcomes. It also supports Vertiv’s broader thermal-chain strategy by improving the integration between server-level cooling and infrastructure, which is increasingly critical for AI and high-performance computing workloads. The acquisition reinforces Vertiv’s position in addressing rising heat challenges, driven by growing compute demands.
Vertiv is benefiting from strong international expansion, which is increasingly becoming a key driver of its growth and a signal for further upside potential. In the first quarter of 2026, Vertiv reported robust organic sales growth across multiple regions, with the Americas leading at 44% organic growth, APAC up 12% and EMEA expected to rebound in the second half of the year.
The Case for APH Stock
Amphenol is benefiting from the surge in demand for AI infrastructure, which has become a transformative force for the company’s growth and market positioning. The company’s high-speed and power interconnect products are increasingly tied to AI data-center buildouts.
In the first quarter of 2026, IT datacom represented about 41% of sales and grew 81% organically year over year. This robust performance was driven by accelerating investments in AI data centers and the company’s ability to capture a significant share of this unique interconnect opportunity. Management expects further sequential growth in the second quarter, with IT datacom sales increasing in the low teens as customers expand demand for both AI and traditional datacom.
Amphenol's recent acquisition of CommScope has further expanded its portfolio to include the industry's broadest range of high-speed copper, power, and fiber optics interconnect products. This enables Amphenol to serve customers across the entire AI ecosystem, from data center operators and system manufacturers to chip makers, supporting both current and next-generation architectures.
APH continues to benefit from accelerating AI infrastructure spending, supported by a diversified business model and an expanding portfolio strengthened through multiple acquisitions. The company exited first-quarter 2026 with record orders of $9.4 billion and a book-to-bill ratio of 1.24x.
Price Performance and Valuation of VRT and APH
In the year-to-date period, Vertiv’s shares have skyrocketed 133.2%, while Amphenol’s shares have lost 4.4%. The outperformance of VRT stock can be attributed to its extensive product portfolio, which spans thermal systems, liquid cooling, UPS, switchgear, busbars, and modular solutions. Vertiv remains leveraged to rising data center power and thermal needs as AI deployments drive higher infrastructure density and faster build cycles.
The decline in APH stock can be attributed to a challenging macroeconomic backdrop, rising geopolitical risks, and elevated debt levels.
VRT and APH Stock Performance
Image Source: Zacks Investment Research
Valuation-wise, Vertiv and Amphenol shares are currently overvalued as suggested by a Value Score of D.
In terms of trailing 12-month Price/Book, Vertiv shares are trading at 34.04X, higher than Amphenol’s 11.29X.
VRT and APH Valuation
Image Source: Zacks Investment Research
How Do Earnings Estimates Compare for VRT & APH?
The Zacks Consensus Estimate for Vertiv’s 2026 earnings is currently pegged at $6.42 per share, which has increased 3.8% over the past 30 days. This represents a 52.86% year-over-year rise.
The Zacks Consensus Estimate for Amphenol’s 2026 earnings is currently pegged at $4.76 per share, which has increased 11.4% over the past 30 days. This represents a 42.51% year-over-year rise.
Vertiv earnings beat the Zacks Consensus Estimate in all the trailing four quarters, delivering an average surprise of 14.65%. APH earnings beat the Zacks Consensus Estimate in all the trailing four quarters, delivering an average surprise of 14.08%. The average surprise of Vertiv is higher than that of Amphenol.
Conclusion
While both Vertiv and Amphenol stand to benefit from the AI infrastructure boom, Vertiv’s stronger earnings momentum, diversified growth drivers, and consistent performance suggest it may offer greater upside potential in the near term.
Despite APH's expanding portfolio, a challenging macroeconomic environment, and rising debt levels remain a concern.
View the Zacks #1 Rank List
Image: Bigstock
VRT vs. APH: Which AI Infrastructure Stock Is the Smarter Buy Now?
Key Takeaways
Vertiv (VRT - Free Report) and Amphenol (APH - Free Report) are major players in the AI and data center infrastructure market, supplying critical power, cooling and connectivity solutions used in hyperscale and enterprise data centers. While Vertiv delivers critical power and cooling solutions for data centers fueling the AI boom, Amphenol provides the high-performance connectors and interconnect systems critical to data center operations.
So, VRT or APH — Which of these AI Infrastructure stocks has the greater upside potential? Let’s find out.
The Case for VRT
Vertiv is a leading provider of thermal and power management solutions for data centers that consume immense amounts of power. The increasing complexity of AI hardware and edge computing further increases the demand for power. Vertiv’s energy-efficient power and cooling solutions play a critical role in this aspect.
Acquisitions have played an important role in further expanding Vertiv’s footprint. The company recently announced the acquisition of Strategic Thermal Labs, a specialist in advanced liquid-cooling technologies, to strengthen its capabilities in high-density data center environments.
The deal enhances Vertiv’s engineering expertise in cold-plate design, server-side liquid cooling and thermal validation, enabling better system performance, reliability and lifecycle outcomes. It also supports Vertiv’s broader thermal-chain strategy by improving the integration between server-level cooling and infrastructure, which is increasingly critical for AI and high-performance computing workloads. The acquisition reinforces Vertiv’s position in addressing rising heat challenges, driven by growing compute demands.
Vertiv is benefiting from strong international expansion, which is increasingly becoming a key driver of its growth and a signal for further upside potential. In the first quarter of 2026, Vertiv reported robust organic sales growth across multiple regions, with the Americas leading at 44% organic growth, APAC up 12% and EMEA expected to rebound in the second half of the year.
The Case for APH Stock
Amphenol is benefiting from the surge in demand for AI infrastructure, which has become a transformative force for the company’s growth and market positioning. The company’s high-speed and power interconnect products are increasingly tied to AI data-center buildouts.
In the first quarter of 2026, IT datacom represented about 41% of sales and grew 81% organically year over year. This robust performance was driven by accelerating investments in AI data centers and the company’s ability to capture a significant share of this unique interconnect opportunity. Management expects further sequential growth in the second quarter, with IT datacom sales increasing in the low teens as customers expand demand for both AI and traditional datacom.
Amphenol's recent acquisition of CommScope has further expanded its portfolio to include the industry's broadest range of high-speed copper, power, and fiber optics interconnect products. This enables Amphenol to serve customers across the entire AI ecosystem, from data center operators and system manufacturers to chip makers, supporting both current and next-generation architectures.
APH continues to benefit from accelerating AI infrastructure spending, supported by a diversified business model and an expanding portfolio strengthened through multiple acquisitions. The company exited first-quarter 2026 with record orders of $9.4 billion and a book-to-bill ratio of 1.24x.
Price Performance and Valuation of VRT and APH
In the year-to-date period, Vertiv’s shares have skyrocketed 133.2%, while Amphenol’s shares have lost 4.4%. The outperformance of VRT stock can be attributed to its extensive product portfolio, which spans thermal systems, liquid cooling, UPS, switchgear, busbars, and modular solutions. Vertiv remains leveraged to rising data center power and thermal needs as AI deployments drive higher infrastructure density and faster build cycles.
The decline in APH stock can be attributed to a challenging macroeconomic backdrop, rising geopolitical risks, and elevated debt levels.
VRT and APH Stock Performance
Image Source: Zacks Investment Research
Valuation-wise, Vertiv and Amphenol shares are currently overvalued as suggested by a Value Score of D.
In terms of trailing 12-month Price/Book, Vertiv shares are trading at 34.04X, higher than Amphenol’s 11.29X.
VRT and APH Valuation
Image Source: Zacks Investment Research
How Do Earnings Estimates Compare for VRT & APH?
The Zacks Consensus Estimate for Vertiv’s 2026 earnings is currently pegged at $6.42 per share, which has increased 3.8% over the past 30 days. This represents a 52.86% year-over-year rise.
Vertiv Holdings Co. Price and Consensus
Vertiv Holdings Co. price-consensus-chart | Vertiv Holdings Co. Quote
The Zacks Consensus Estimate for Amphenol’s 2026 earnings is currently pegged at $4.76 per share, which has increased 11.4% over the past 30 days. This represents a 42.51% year-over-year rise.
Amphenol Corporation Price and Consensus
Amphenol Corporation price-consensus-chart | Amphenol Corporation Quote
Vertiv earnings beat the Zacks Consensus Estimate in all the trailing four quarters, delivering an average surprise of 14.65%. APH earnings beat the Zacks Consensus Estimate in all the trailing four quarters, delivering an average surprise of 14.08%. The average surprise of Vertiv is higher than that of Amphenol.
Conclusion
While both Vertiv and Amphenol stand to benefit from the AI infrastructure boom, Vertiv’s stronger earnings momentum, diversified growth drivers, and consistent performance suggest it may offer greater upside potential in the near term.
Despite APH's expanding portfolio, a challenging macroeconomic environment, and rising debt levels remain a concern.
Both Vertiv and Amphenol carry a Zacks Rank #2 (Buy). You can see the complete list of today’s Zacks #1 Rank (Strong Buy) stocks here.