American Tower (AMT) Q1 2026: CoreSite Data Center Revenue Jumps 17% as Interconnection Demand Inflects

April 28, 2026 | By EarningsIQ Research

AMT’s Q1 2026 results highlight a strategic inflection in its CoreSite data center business, with interconnection-driven growth outpacing towers and prompting a full-year guidance raise. Management’s disciplined capital allocation and operational efficiency focus underpin a resilient model, even as U.S. churn and Latin America volatility persist. Investors should watch for continued data center expansion, evolving M&A appetite, and the interplay between tower and edge infrastructure as AI and 6G demand accelerates.

Summary

• CoreSite Interconnection Surges: Data center momentum accelerates, with interconnection activity now a key margin driver.
• Capital Allocation Tightens: Share buybacks and disciplined deployment signal a focus on high-return developed markets.
• Emerging Market Volatility Managed: Churn in Latin America and U.S. is absorbed, with guidance de-risked and upside possible from legal resolutions.

Performance Analysis

American Tower’s Q1 2026 results reflect a business in transition, where data center growth and interconnection revenue are now as strategically material as its legacy tower portfolio. Property revenue grew organically by approximately 5% on a cash FX-neutral basis when excluding one-time DISH churn, with CoreSite, the company’s interconnection-focused data center business, delivering 17% property revenue growth. This compares to consolidated organic tenant billings growth of 4% (ex-DISH), and only 1% in the U.S. and Canada, highlighting the growing significance of the data center segment within the broader portfolio.

Adjusted EBITDA grew 4% (ex-DISH, FX-neutral), but cash-adjusted EBITDA margins declined by 110 basis points, pressured by churn, higher SG&A, and African fuel costs. Attributable AFFO per share, a key cash flow metric for tower REITs, was up 4% on an FX-neutral, churn-adjusted basis. Notably, the company raised full-year guidance across revenue, EBITDA, and AFFO, citing FX tailwinds, straight-line revenue acceleration, and outperformance in CoreSite. Latin America remains a drag due to elevated churn, but management anticipates a return to growth in 2027 as market repair in Brazil accelerates.

• Data Center Outperformance: CoreSite’s double-digit growth outpaces towers, driven by AI, hybrid cloud, and a step-change in interconnection demand.
• Geographic Divergence: Africa and APAC deliver 11% organic growth, while Latin America contracts by 2% due to churn; Europe sees steady 4% growth, supported by new builds.
• Margin Pressure Offsets Top-Line Gains: Churn and cost inflation weigh on margins, but back-half weighted AFFO growth is expected as churn normalizes and maintenance capex/tax timing improves.

Share repurchases exceeded $184 million in Q1, with more than $565 million bought back since Q4, reflecting management’s conviction in valuation and capital return discipline.

Executive Commentary

Strategic Positioning

1. CoreSite as Growth Engine

CoreSite, AMT’s interconnection-centric data center business, has become a core driver of value, delivering 17% property revenue growth and a clear inflection in interconnection activity. Management emphasized CoreSite’s unique position as an “interconnection hub” rather than a traditional data center, with a sticky, high-margin customer base and an ecosystem advantage. The convergence of network connectivity, cloud on-ramps, and enterprise ecosystems positions CoreSite to outperform single-tenant hyperscale models, especially as AI workloads ramp.

2. Disciplined Capital Allocation and Developed Market Focus

AMT is allocating approximately 85% of discretionary capital to developed markets, with over $700 million earmarked for data center expansion and European new builds. The company’s capital deployment is guided by return hurdles well above its weighted average cost of capital, with management reiterating a refusal to pursue uneconomic growth. Share repurchases and a strong balance sheet (lowest leverage, highest credit rating among peers) provide further flexibility.

3. Tower Portfolio Stability Amid Churn

Organic tenant billings growth in towers remains steady at 4% (ex-DISH), with U.S. growth muted but international markets (Africa/APAC) providing double-digit expansion. Latin America is in the midst of a churn-driven reset, but management expects a return to normalized growth in 2028 and beyond as market repair in Brazil advances. Europe continues to outperform initial underwriting, with new site builds on compelling economic terms and operational excellence providing a competitive edge.

4. Operational Efficiency and AI Upside

Operational excellence remains a core strength, with Q1 progress on direct tower cost reductions and a long-term target of 200 to 300 basis points of margin expansion by 2030. Management is actively evaluating AI-driven efficiency gains, suggesting additional upside potential in future years.

5. M&A and Portfolio Optimization

AMT maintains a disciplined, value-driven approach to M&A, with no strategic imperative to overpay or chase scale for its own sake. The company is open to both public and private opportunities in the U.S., Europe, and data centers, but will only act where risk-adjusted returns are compelling. Portfolio optimization, including potential asset sales, remains on the table as valuation gaps between public and private markets persist.

Key Considerations

This quarter underscores a pivot in AMT’s growth algorithm, with interconnection and data center expansion now as critical as towers. Management’s focus on disciplined capital deployment, operational efficiency, and portfolio optimization sets the tone for a period of measured, high-quality growth.

Key Considerations:

• CoreSite Ecosystem Stickiness: Interconnection-driven revenue is structurally higher margin and creates customer lock-in, differentiating AMT from hyperscale peers.
• Churn Headwinds Absorbed: U.S. and Latin America churn are fully baked into guidance, with any positive litigation outcomes (e.g., DISH) providing incremental upside.
• Emerging Market Risk-Reward: Growth in Africa and APAC is robust, but AMT is intentionally limiting exposure to reduce earnings volatility from macro shocks.
• Shareholder Returns Prioritized: Buybacks and dividend growth (5% in Q1) reflect confidence in intrinsic value and cash flow durability.
• Edge and AI as Long-Term Catalysts: Management’s conviction in edge infrastructure and AI-driven demand positions AMT for secular growth, though timing remains uncertain.

Risks

Key risks include ongoing churn in the U.S. and Latin America, cost inflation (notably in Africa), and regulatory or permitting headwinds for new data center builds. While management has de-risked guidance for DISH-related churn and legal outcomes, any adverse developments could impact results. The pace of AI and 6G adoption, as well as competitive intensity in developed markets, also represent material uncertainties for forward growth and margin realization.

Forward Outlook

For Q2 2026, American Tower guided to:

• Continued mid-single-digit organic tenant billings growth (ex-DISH churn) across the tower portfolio
• Double-digit data center property revenue growth, with CoreSite interconnection activity expected to remain elevated

For full-year 2026, management raised guidance:

• Property revenue outlook up by $145 million (1% increase), with 5% cash FX-neutral growth (ex-DISH)
• Adjusted EBITDA outlook up $105 million (1% increase), implying 5% growth on a churn- and FX-neutral basis
• AFFO per share growth of approximately 5% on an FX-neutral, churn-adjusted basis, with stronger back-half performance expected

Management highlighted several factors that shape the outlook:

• Churn is back-half weighted, but normalization and market repair in Brazil should drive acceleration in 2027 and beyond
• Data center demand, especially for interconnection and AI-related workloads, is expected to remain a structural tailwind

Takeaways

AMT’s Q1 2026 performance signals a business model in evolution, with CoreSite’s interconnection-led growth now a central pillar alongside towers.

• Data Center Inflection: CoreSite’s 17% revenue growth and ecosystem stickiness are reshaping AMT’s growth and margin profile, with durable tailwinds from AI and cloud.
• Capital Allocation Discipline: Developed market focus and a strong balance sheet underpin resilience, while share buybacks and targeted investments drive shareholder returns.
• Emerging Market Volatility Managed: Churn and macro risk in Latin America are absorbed, with guidance de-risked and upside possible from legal or market repair events.

Conclusion

American Tower’s Q1 2026 results underscore a strategic shift toward interconnection-rich data center growth, balanced by disciplined capital allocation and operational rigor. As secular demand for digital infrastructure intensifies, AMT’s hybrid model and portfolio discipline position it to capture both near-term returns and long-term upside from AI, cloud, and 6G adoption.

Industry Read-Through

AMT’s results reinforce the rising strategic value of interconnection-centric data centers, especially as AI and edge workloads drive demand for distributed, high-throughput infrastructure. The company’s experience with churn, cost inflation, and capital discipline provides a blueprint for peers navigating similar market headwinds. The persistent valuation gap between public and private tower portfolios, as well as the operational complexity of balancing developed and emerging market exposure, are industry-wide themes. For digital infrastructure investors, the clear delineation between commodity capacity and ecosystem-driven stickiness will increasingly separate winners from laggards as the next wave of tech adoption unfolds.

AMT Real Estate Digital Infrastructure Data Centers Towers Interconnection Capital Allocation AI