CCI vs SBAC: Which Is the Better Buy in 2026?

Same yardstick, side by side (as of September 2026). Valuation lined up like this is most meaningful for two names in the same corner of the market, which these are. Figures are approximate; verify before investing.

The metrics above tell you which is the marginally better business. The bigger risk for most people is not picking the slightly worse stock, it is over-concentrating. CCI and SBAC share themes, so owning both, or adding either to what you already hold, can quietly push a large share of your portfolio into one bet.

This is the part a generic comparison page cannot answer, because it depends on what you own. Connect your brokerage and Walnut shows your real, combined CCI and SBAC exposure, flags overlap with your existing positions, and tells you if adding one would tip you past a concentration you are comfortable with, read-only by default, with your login staying at your broker. Walnut is not an investment adviser.

Crown Castle owns, operates, and leases shared communications infrastructure geographically dispersed across every major U.S. market, comprising approximately 40,000 cell towers and, until May 2026, roughly 90,000 route miles of fiber supporting small cells and fiber solutions. The company's revenue model is essentially that of a landlord: wireless carriers including Verizon, AT&T, and T-Mobile sign long-term leases to place their antennas and equipment on Crown Castle's structures, generating predictable, escalating site rental revenues. Because each tower can host multiple tenants simultaneously with minimal incremental cost, the model carries high operating leverage, and the tower segment has historically operated with very high margins on incremental revenue. Crown Castle converted to a Real Estate Investment Trust (REIT) structure in 2014, which requires it to distribute most of its taxable income as dividends. The company traces its roots to Castle Tower, founded in Houston in 1994 with 133 towers, which later merged with Crown Communications to form Crown Castle; it went public in 1998. Over the following decade it spent heavily on acquisitions, including fiber assets, accumulating a debt load of roughly $24 billion. Persistent activist pressure from Elliott Investment Management ultimately drove a strategic reversal: the company divested its fiber and small cell businesses in May 2026 for approximately $8.5 billion in total, deploying proceeds primarily toward debt reduction and share repurchases. Christian Hillabrant, who previously served as CEO of Vantage Towers AG and COO of Tillman Infrastructure, was appointed President and CEO effective September 15, 2025, and brings over three decades of digital infrastructure experience.

Full CCI guide

SBA Communications (SBAC) is one of the largest independent owners and operators of wireless communications infrastructure, structured as a real estate investment trust (REIT). It owns and leases cell towers, and also rooftops, distributed antenna systems, and small cells, across a portfolio of more than 46,000 communications sites in the Americas and Africa. Its business model is simple and rent-like: SBA owns the vertical steel, and wireless carriers such as the major mobile operators pay long-term leases to hang their antennas on it. The economics improve every time a second or third tenant is added to an existing tower, because the incremental cost is low and most of that new rent falls to the bottom line. Demand is driven by rising mobile data usage, network densification, and the multi-year rollout of 5G, all of which push carriers to add equipment and lease more space. As a REIT, SBA distributes much of its taxable income as dividends and is measured primarily on funds from operations (FFO) and adjusted funds from operations (AFFO) rather than standard earnings per share. Because towers are long-lived assets financed largely with debt, SBA is also sensitive to interest rates, which affect both its borrowing costs and how investors value its steady, contractual cash flows. Headquartered in Boca Raton, Florida, SBA is widely viewed as a way to invest in the long-term growth of mobile data through the landlord of the wireless network.

Full SBAC guide

Both fit overlapping themes, but they are not interchangeable. The useful comparison is which set of drivers and risks you want exposure to.

• CCI drivers: Pure-Play Tower Focus Unlocks Operational Simplicity; 5G Densification Keeps Tower Demand Structural.
• SBAC drivers: Mobile data growth and 5G densification; High-margin tower economics and lease escalators.

A faster-growing, richer-valued name usually swings harder, so it suits a longer horizon and a higher tolerance for volatility; a steadier, more cash-generative business suits a more conservative or income-minded investor. The honest test is which set of risks you could hold through a drawdown: Crown Castle's most acute risk is customer concentration: approximately 75% of revenue comes from just three carriers, and the DISH Wireless default vividly illustrates what happens when even a smaller tenant stops paying, resulting in contract termination and over $3.5 billion in disputed payments now in litigation. For SBAC, sBA is capital intensive and carries substantial debt to finance long-lived tower assets, which makes it sensitive to interest rates: higher rates raise its borrowing costs and can pressure how investors value its steady cash flows.

Growth-minded investors who believe the theme has years to run tend to accept the richer multiple for more upside; value-minded investors lean toward the cheaper forward earnings and steadier profile. Pick CCI if you believe its drivers more; SBAC if you believe its. Many investors hold both, but since they share themes, that is a concentrated bet, not diversification. Decide deliberately and check overlap. For the full detail, see the CCI and SBAC guides.

CCI. For infrastructure REITs like Crown Castle, AFFO (Adjusted Funds from Operations) is generally regarded as the most relevant cash-generation metric because it strips out non-cash depreciation that distorts GAAP net income on long-lived assets. The ~$2.10 billion post-sale AFFO midpoint for the 12 months following the fiber divestiture represents a meaningful step-up from 2025, driven by cost savings and lower interest expense rather than top-line growth. The P/E ratio, while elevated versus the broader REIT peer average of roughly 23-25x, reflects the market pricing in the simplification premium and the growth re-acceleration expected in 2027 as DISH-related churn becomes a clean year-over-year comparison.

SBAC. As a REIT, SBA is best judged on funds from operations (FFO) and adjusted funds from operations (AFFO) rather than standard earnings per share, because large non-cash depreciation on its towers makes reported net income understate cash generation. A conventional P/E can therefore look high even when AFFO growth is healthy, so the stock often trades on AFFO-per-share growth, leasing trends, and interest-rate expectations. Its debt load means rate moves matter for both costs and valuation. Figures are approximate and dated; verify current numbers before relying on them.

Headline figures (approximate, 2026-06-27): CCI shows site rental revenue (fy2025) ~$4.05 billion, adjusted ebitda (fy2025) ~$2.86 billion, affo (fy2025) ~$1.90 billion, net income (fy2025) ~$444 million; SBAC shows business model cell-tower REIT leasing wireless infrastructure to carriers, portfolio more than 46,000 communications sites in the Americas and Africa, key metric AFFO per share (REITs are measured on FFO/AFFO, not EPS), affo per share (q4 2025) ~$3.19.

CCI and SBAC are related but distinct: same themes, different businesses and risks. Neither wins in the abstract; the right pick is whichever thesis you actually believe, sized so you are not over-concentrated in one theme. Walnut can show your combined CCI and SBAC exposure against your real portfolio. It is not an investment adviser.