SBA Communications Corporation

SBAC · NASDAQ · USD

Can SBA restart domestic leasing growth once Sprint and EchoStar churn runs off, or will carrier cost cutting and consolidation keep US growth near zero?

Last 4 earnings calls · through Q2 FY2026

Bull case

  • Consolidation churn winding down

    The bull case is that most churn from carrier mergers and a defaulting customer is nearly finished, so the remaining base grows with contract escalators.

  • Spectrum auctions need new radios

    New spectrum auctions with strict build-out rules should push carriers to add radios at tower sites, restarting amendment activity after the current upgrade cycle.

  • International tower build-out

    Management is adding towers in Central America and Africa where it says returns exceed its cost of capital, and lease-up on the newly acquired sites is ahead of plan.

  • Investment-grade balance sheet

    Investment-grade ratings lower the cost of debt, and a dividend plus resumed buybacks return cash while leverage stays inside the company's target range.

Bear case

  • Customer concentration

    A few large carriers pay most of the rent, one is now in court over unpaid leases, and another's master agreement comes up for renewal within a year.

  • International churn persists

    Growth outside the US comes with churn from carrier mergers and bankruptcies, and management has stopped saying when that churn will normalize.

  • Buyback program paused

    Higher interest costs on refinanced debt and a pause in share repurchases slow the per-share growth that has supported results in recent years.

Bull and bear points

Growth & Execution

In short: International tower additions are lifting leasing, while domestic new leasing has flattened.

Bull · 2

  • Central America lease-up is beating the deal model

    SBA says demand for the former Millicom sites from the other carrier in Central America is running ahead of its underwriting, and international site leasing revenue grew 30.5% year on year.

    Q1 FY2026 call

  • Full-year outlook raised twice since the initial 2026 guide

    Management opened 2026 expecting domestic leasing roughly flat with last year; it has since raised site leasing revenue, AFFO and AFFO per share, citing first-half results and lower net interest expense.

    Tone shiftQ4 FY2025 → Q2 FY2026
Bear · 2

  • Domestic site leasing revenue fell 3.7% in the second quarter

    Domestic leasing is SBA's largest segment, and its decline reflects both the EchoStar default and soft new leasing, with management guiding to essentially flat activity once EchoStar is excluded.

    Q4 FY2025 call

  • Management no longer dates the international churn decline

    In February management said international churn should trend down over the next couple of years; by August it said churn stays elevated and declined to commit on next year, leaving the timing of an international recovery unclear.

    Tone shiftQ4 FY2025 → Q2 FY2026

Profitability & Financial Strength

In short: Tower cash flow margins and free cash flow are high, while refinancing old debt raises interest costs.

Bull · 2

  • Operating margin rose to 49.2% in the second quarter

    Long-term leases with contractual escalators give SBA high incremental margins, and operating margin expanded 1.3 points year on year even with little growth in leasing activity.

    Filed financials

  • Investment-grade bond sale completed in July

    A year ago management described only a path toward investment-grade debt; it has since sold $3.5 billion of unsecured investment-grade notes and says that should lower its cost of debt over time.

    Tone shiftQ3 FY2025 → Q2 FY2026
Bear · 2

  • Net debt of $12.4 billion is being refinanced at higher rates

    SBA is replacing debt raised when rates were far lower, and management named interest expense a headwind because several maturing instruments carry very low coupons.

    Q3 FY2025 call

  • Buybacks paused during the first half of 2026

    Repurchases cut the diluted share count 1.7% a year from FY2022 to FY2025 and supported per-share results, but SBA bought back nothing meaningful in the first half while it paid down its credit line.

    Q1 FY2026 call

Market Position

In short: Master agreements with the three large US carriers support pricing, but the customer base is narrow.

Bull · 2

  • Verizon agreement locks in ten years of colocation minimums

    The agreement commits Verizon to a minimum level of new colocations for a decade, which gives SBA predictable revenue without negotiating each site application individually.

    Q3 FY2025 call

  • Upper C-band auction carries strict build-out rules

    The FCC adopted rules that terminate licences for winners who do not deploy their spectrum, which management expects to put new equipment on its towers over several years.

    Q2 FY2026 call
Bear · 2

  • T-Mobile's master agreement expires within about a year

    T-Mobile has been SBA's largest customer, and the agreement covering it lapses soon, so the renewal terms will set pricing and volume for a large share of domestic revenue.

    Q3 FY2025 call

  • EchoStar went from current on rent to litigation

    Management told investors in late 2025 that EchoStar was paying and expected to honor its leases; it has since removed all EchoStar revenue from guidance and sued over unpaid rent.

    Tone shiftQ3 FY2025 → Q4 FY2025