SBAC Q2 2025: Millicom Adds 4,300 Sites as U.S. Bookings Rise for Sixth Straight Quarter
SBA Communications’ Q2 2025 saw U.S. and international leasing activity accelerate, with the Millicom deal adding 4,300 new sites and bookings growth continuing for a sixth consecutive quarter. The company raised full-year guidance across all key metrics, citing strong construction services, expanding co-location, and a healthy backlog, while signaling sharper portfolio discipline through a Canadian market exit. Investors should watch for the timing and magnitude of new lease revenue recognition and evolving churn dynamics as carrier strategies shift into 2026.
Summary
- Millicom Expansion: Central America portfolio scaled with 4,300 new sites and a 15-year master lease agreement.
- U.S. Booking Momentum: Sixth straight quarter of increased bookings, driven by network densification and fixed wireless access.
- Portfolio Rationalization: Canadian tower exit signals focus on scalable markets and capital redeployment flexibility.
Performance Analysis
SBA Communications delivered another quarter of operational outperformance, raising full-year guidance for site leasing revenue, tower cash flow, adjusted EBITDA, and funds from operations (FFO) per share. The U.S. business continued to show sequential improvement, with bookings up for the sixth consecutive quarter, reflecting sustained carrier investment in network densification (adding more cell sites to improve capacity and coverage) and fixed wireless access (FWA, using wireless networks to deliver broadband to homes).
Internationally, revenue growth was supported by the early partial closing of the Millicom transaction, bringing 4,300 sites and a 15-year master lease agreement (MLA, long-term contract with a key carrier) in Central America. However, international churn remained elevated, mainly due to carrier consolidation and specific headwinds with Brazilian operator OI, prompting a $5 million increase in churn guidance.
- Construction Services Surge: Full-year services revenue guidance was increased by nearly 20%, driven by accelerating carrier installations and SBA’s expanded work on third-party sites.
- Churn Dynamics: Sprint-related churn is expected to total $50–52 million in 2025, with $50 million anticipated in 2026 and $20 million thereafter—highlighting the long tail of industry consolidation.
- Shareholder Returns: 799,000 shares repurchased for $172 million and a 13% dividend increase, reflecting confidence in cash flow durability and capital allocation discipline.
Adjusted EBITDA margin and U.S. dollar revenue mix remained robust, with 85% of adjusted EBITDA and 80% of cash site leasing revenue denominated in U.S. dollars, insulating the business from FX volatility. The balance sheet remains strong, with net debt to adjusted EBITDA at 6.3x and 97% of debt fixed-rate, supporting both ongoing M&A and opportunistic buybacks.
Executive Commentary
"Both the U.S. and international businesses performed very well, and we are pleased to increase our full year guidance across all key metrics, both in total and on a constant currency basis. In the U.S., activity levels continue to improve. And this quarter represents the sixth sequential quarter where bookings increased...The backlog also remains healthy, which bodes well for the remainder of the year and into 2026."
Brendan Cavanaugh, President and Chief Executive Officer
"The primary drivers of these increases include the outperformance of second quarter results, higher straight-line revenue, the acquisition of malecon towers earlier than expected in two international markets, an improved outlook for services, favorable foreign currency movement, and a reduction in share count from recently completed share buybacks."
Marc Montagnier, Chief Financial Officer
Strategic Positioning
1. Central America Scale via Millicom
The partial early closing of the Millicom transaction (adding 4,300 sites for $550 million) cements SBA’s position as the leading tower operator in Central America. The deal brings long-term U.S. dollar-denominated contracts and a substantial build-to-suit pipeline, providing both revenue visibility and growth optionality. Management highlighted strong initial interest from other carriers in the region, suggesting upside to lease-up assumptions.
2. U.S. Organic Growth and Backlog Health
Domestic organic leasing growth remains solid, with bookings up for six straight quarters and a growing mix of new co-locations versus amendments. This shift, while positive for long-term site utilization, delays near-term revenue recognition as new leases take longer to commence. The backlog is described as "healthy," supporting visibility into 2026, while fixed wireless access and AI-driven applications are expected to drive sustained demand for network capacity.
3. Portfolio Discipline and Market Exits
The sale of SBA’s Canadian towers underscores a sharpened focus on scalable markets. Management cited limited growth prospects in Canada due to carrier site ownership and local market structure, opting to exit at a valuation "much higher than our public company valuation." The move frees up over $300 million in proceeds for redeployment into higher-return opportunities, debt reduction, or buybacks.
4. Capital Allocation and Leverage Management
SBA continues to balance M&A, share repurchases, and debt paydown, with $1.45 billion of buyback authorization remaining. Leverage remains near historical lows, and the company was recently upgraded to investment-grade by S&P, enhancing future financing flexibility. Management signaled that absent external growth opportunities, further deleveraging and buybacks are likely, especially as private market valuations remain elevated versus public multiples.
5. Managing Churn and Carrier Consolidation
Churn remains a structural headwind, particularly from legacy Sprint contracts and international carrier consolidation. While churn is well-telegraphed and manageable in the U.S., international risks are less predictable, as seen with OI in Brazil. Management is proactively booking bad debt allowances and increasing churn guidance as needed, while emphasizing that these pressures are transitory and tied to long-term customer health.
Key Considerations
SBA’s Q2 demonstrates a business at an inflection—leveraging scale in growth markets while rationalizing subscale assets and maintaining capital allocation agility. The company’s forward visibility is underpinned by healthy U.S. bookings, a robust Central American platform, and a strong balance sheet, but investors should monitor churn timing, lease-up velocity, and external M&A discipline.
Key Considerations:
- Lease-Up Timing Shift: Greater mix of new co-locations delays revenue recognition, requiring above-average second-half contributions to meet full-year targets.
- Churn Overhang: Sprint and international churn remain headwinds, though well-quantified; watch for updates on OI and other international exposures.
- Capital Allocation Optionality: Proceeds from the Canadian exit and strong liquidity provide flexibility for M&A, buybacks, or further deleveraging.
- Private/Public Valuation Gap: Management remains disciplined on external growth, citing a disconnect between private and public asset pricing.
- Macro Demand Drivers: Fixed wireless, AI applications, and new spectrum auctions support sustained long-term network investment by carriers.
Risks
Key risks include elevated international churn (notably in Brazil), the long tail of Sprint-related churn, and delayed revenue recognition from new leases. Rising interest costs on future debt maturities and persistent private/public valuation gaps could constrain M&A-driven growth. Management’s proactive allowance booking and portfolio review mitigate some risks, but competitive dynamics and carrier capital allocation remain external variables.
Forward Outlook
For Q3 2025, SBA guided to:
- Higher site leasing revenue and tower cash flow, reflecting Millicom contributions and U.S. service strength.
- Continued growth in construction services revenue as carrier installations accelerate.
For full-year 2025, management raised guidance across all key metrics:
- Increased site leasing, EBITDA, FFO, and AFFO per share outlook, driven by outperformance and early Millicom closing.
Management highlighted:
- Backlog strength and sustained U.S. activity supporting visibility into 2026.
- Healthy capital allocation flexibility with $1.45 billion buyback authorization and investment-grade credit rating.
Takeaways
SBA’s Q2 2025 marks a pivot toward scale in strategic markets and a disciplined approach to capital deployment. The business is positioned for steady organic growth, with churn and lease-up timing as key variables for near-term results.
- Portfolio Realignment: Central America expansion and Canadian exit optimize scale and growth prospects while freeing capital for higher-return uses.
- Organic Growth Visibility: U.S. bookings momentum and a growing backlog support confidence in 2026 growth, but investors should track lease-up conversion and churn timing.
- Capital Allocation Discipline: Management’s willingness to shift between M&A, buybacks, and deleveraging reflects a pragmatic response to market conditions and valuation gaps.
Conclusion
SBA Communications exits Q2 2025 with enhanced scale in growth markets, robust U.S. leasing momentum, and a disciplined capital allocation stance. While churn and timing of new lease revenue remain watchpoints, the company’s operational execution and strategic focus position it well for the next phase of industry investment.
Industry Read-Through
SBA’s results reinforce the durability of U.S. wireless infrastructure demand, as carriers ramp fixed wireless access and prepare for new spectrum deployment. The company’s success in Central America signals growing regional scale advantages, while its exit from Canada highlights the challenge of scaling in carrier-owned markets. Elevated private market valuations continue to inhibit public tower M&A, suggesting ongoing capital returns and portfolio optimization will be a sector-wide theme. Investors across digital infrastructure should monitor churn dynamics, lease-up velocity, and the impact of spectrum and AI-driven demand on network investment cycles.