AI is grabbing headlines for software breakthroughs, but the real backbone sits in hardware rich infrastructure that keeps the data flowing and the models running. While global manufacturing and inflation signals remain mixed across regions, capital is still searching for assets backed by physical capacity like data centers, power, and connectivity. The AI Infrastructure Stocks screener focuses on these “picks and shovels” that turn AI demand into actual cash flow. In this article you will see three of the strongest stocks from that screener, and how each fits into today’s cross currents in growth, costs, and policy.

Equinix (EQIX)

Overview: Equinix runs a global network of highly connected data centers that let companies plug into cloud providers, partners and customers in the same facilities so digital services and AI workloads can move quickly and reliably across borders. Based in Redwood City and founded in 1998, Equinix focuses on providing the critical physical infrastructure and interconnection that sit behind everyday online and AI driven services.

Operations: Equinix generates about US$9.9b from designing, building out and operating its IBX data centers, with revenue spread across the US, Europe, the Middle East and Africa, Asia Pacific and the rest of the Americas.

Market Cap: US$101.8b

Equinix is central to the AI build out because it owns and operates dense, interconnected data centers where cloud platforms, enterprises and AI hardware providers physically meet. The company is seeing strong recurring revenue and rising net profit margins. Management has provided guidance for double digit annual revenue and AFFO growth through 2029, which indicates expectations for ongoing demand for its footprint. At the same time, the balance sheet carries high debt and there has been recent insider selling, so funding costs and capital discipline matter. Valuation screens as rich on P/E, yet a discounted cash flow view suggests potential upside if cash flows develop in line with those expectations. That combination of current fundamentals, AI related demand and financial risks is an area where attentive investors may focus their analysis.

Equinix sits at the center of AI traffic, yet its rich P/E, heavy debt load and insider selling leave a crucial question on upside versus risk. The DCF valuation analysis for Equinix hints at how that trade off really looks.

Digital Realty Trust (DLR)

Overview: Digital Realty Trust runs a global network of data centers that host, power and connect the servers behind cloud computing, AI, social networks and corporate IT systems, serving customers across industries like finance, healthcare, manufacturing and communications. With more than 300 facilities and large land and power reserves across regions including North America, Europe, South America, Asia, Australia and Africa, Digital Realty Trust provides the real estate and connectivity that keep data intensive services online.

Operations: Digital Realty Trust generates about US$6.8b from its commercial REIT operations, with revenue of about US$3.6b from the United States and US$3.2b from outside the United States.

Market Cap: US$72.0b

Digital Realty Trust gives you exposure to AI and cloud demand through 3.1 gigawatts of existing IT capacity and a further 8.5 gigawatts under development and held for future build out. Recent record leasing, a US hyperscale fund and raised 2026 FFO guidance indicate how that capacity is being filled. At the same time, profit margins have compressed, earnings declined 43.5% over the past year and interest coverage is weak, so funding and execution risk matter. Analysts have published upside in their price targets and FFO outlook, but those views sit alongside a high P/E multiple, share issuance and the risk that rapid U.S. expansion, especially in power constrained markets, eventually runs ahead of demand.

Digital Realty Trust is filling huge AI capacity, yet compressed margins and weaker interest cover raise questions about how durable that build out really is. The 3 key rewards and 2 important warning signs (1 is major!) could reveal what current pricing might be missing.

Flex (FLEX)

Overview: Flex is a global manufacturing and supply chain partner that designs and builds hardware for data centers, communications equipment, cars, medical devices and industrial and power systems, helping large customers bring complex products to market across the Americas, Asia and Europe.

Operations: Flex generates about US$11.6b from Integrated Technology Solutions, US$10.5b from Regulated Manufacturing Solutions and US$7.2b from Cloud and Power Infrastructure, with manufacturing and revenue spread across countries including Mexico, the United States, China and Malaysia.

Market Cap: US$43.4b

Flex gives you a direct line into AI hardware demand through its Cloud and Power Infrastructure segment, which supplies power dense compute systems, liquid cooling and utility level power gear that sit behind high end data centers. Recent results showed double digit revenue growth and raised guidance for fiscal 2027, and the planned spin off of the CPI business is aimed at sharpening focus on AI infrastructure and power. At the same time, thin net margins, high debt, customer concentration and ongoing insider selling keep execution risk front and center. If you are watching how manufacturing and power capacity could benefit from AI infrastructure spend, Flex is a company that may warrant closer scrutiny once you look past the headlines.

Flex’s AI hardware story looks like it is just getting started, yet thin margins and high debt could be masking the real trade off. The analyst forecasts for Flex highlight where the story could surprise next

The three AI infrastructure stocks here are just a starting point, and the full AI Infrastructure Stocks screener surfaced 52 more companies where data center capacity, cooling and power stories line up with equally compelling narratives. Use Simply Wall St to identify the exact catalysts that matter to you and analyze those narratives side by side so you can focus on the highest conviction AI infrastructure plays.

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This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.