SBA Communications at Citi conference: eyes 2028 growth inflection

SBA Communications said U.S. carrier capex remains at a cyclical trough of roughly 15% of revenue, versus 25% during the 2022-2023 5G rollout, but maintained 2026 lease-up guidance of $35 million and expects a major growth inflection in 2028-2029. The company expects about $700 million of annual free cash flow after obligations, plans low-double-digit dividend growth, and signaled continued buybacks with shares below $190 versus its $200 average repurchase price in 2025. Near-term headwinds include $38 million of 2026 international churn, mainly Brazil, and a final $3.6 billion 2027 debt-maturity wall, though management expects churn and refinancing pressure to ease after 2027.

Analysis

SBAC’s investable setup is less about a distant technology cycle than an unusually visible 2027-28 earnings de-risking: Brazil churn rolls off while the final refinancing cohort clears. The key sensitivity is the spread between organic site revenue and cash interest; investment-grade access reduces refinancing uncertainty but does not guarantee lower interest expense if Treasury yields or credit spreads re-widen. Management’s capital-return signaling is credible only if buybacks resume without pushing leverage toward the upper end of its range; otherwise, the stock remains a bond-proxy multiple with modest near-term FFO growth.

Competitive dynamics favor incumbent towers over new U.S. buildouts, but the carrier side is uneven. TMUS’s fixed-wireless strategy and capacity densification create more amendment potential than fiber-heavy AT&T and Verizon, whose capital budgets are divided between wireless and fiber. Conversely, an aggressive satellite/MVNO partnership could initially substitute for rural macro coverage rather than add tower tenancy; tower upside requires terrestrial spectrum deployment, not merely direct-to-device marketing. Treat edge compute, autonomous vehicles and drone detection as unmodeled optionality rather than valuation support.

The non-obvious risk is that the next spectrum auction absorbs carrier balance-sheet capacity precisely when SBAC needs a 2027 leasing reacceleration to bridge to the later cycle. Brazil is also not just a churn issue: currency strength and a stable three-carrier structure are necessary for the anticipated post-consolidation recovery. A weak BRL or another market exit would make the apparent 2028 inflection materially less valuable. Falsify the constructive view if 2027 lease-up falls below the current run-rate, international churn remains elevated into 2028, or net leverage trends above 7x after repurchases.

Key Decisions for Investors

• Accumulate SBAC on weakness below $190 with a 12-18 month horizon; base case is capital-return support plus declining churn/refinancing drag, with upside dependent on 2027 carrier-budget clarity. Size modestly until management quantifies 2027 lease-up and post-refinancing cash interest.
• Express relative tower-cycle exposure long SBAC / short VZ in equal-dollar terms through late 2027: SBAC benefits from incremental densification while VZ carries fiber-build capital intensity. Exit if VZ materially reduces fiber capex or SBAC’s U.S. leasing pipeline deteriorates.
• Use TMUS as the preferred carrier read-through rather than a direct long solely on this thesis; monitor its 2027 capex plan and fixed-wireless subscriber additions. A capex step-up would validate tower demand, while a capacity-led slowdown is an early warning against SBAC.
• Do not underwrite LEO or 6G optionality in current SBAC valuation. Set an alert for disclosed satellite terrestrial-network agreements, auction outcomes, or a named new tenant; these are catalysts for adding exposure, not reasons to pay a premium today.