SBA Communications Corporation

SBA Communications Corporation is an American real estate investment trust that owns and operates wireless communications infrastructure — primarily multi-tenant cellular towers — across the Americas and South Africa, generating $2.82 billion in revenue in fiscal 2025. The company is the third-largest publicly traded tower operator globally, behind American Tower and Crown Castle, with a portfolio of 46,328 sites as of December 2025.

This is a story about a cash-compounding machine navigating a messy transition. SBA has spent two decades assembling one of the best-situated tower portfolios in the Western Hemisphere and the past five years converting that portfolio into growing per-share cash returns — dividends per share up more than sixfold since 2019, the diluted share count down 16%, and GAAP leverage down from 9.7× to 6.8×. The debate is whether the machine can keep compounding at the same rate through a period of elevated tenant churn, carrier consolidation, and a maturing 5G cycle, or whether the next few years look more like a digestion phase.

The file turns on a single question: whether the densification and spectrum-refarming cycle that begins as Sprint and EchoStar churn finally burns off — likely in 2027–2028 — is large enough to re-accelerate organic growth, or whether the tower model's best years in the U.S. are behind it and the growth story must shift decisively to international markets and adjacent opportunities like edge computing.