American Tower Q3 2026 Earnings: Data Center Growth Lifts Property Revenue Outlook

American Tower (NYSE: AMT) reported Q3 2026 total revenue of $2.785 billion, up 2.5% year over year, while diluted GAAP EPS fell 9.9% to $1.64. Property revenue rose 4.5% to $2.734 billion, supported by 16.3% cash revenue growth in Data Centers, but GAAP net income declined as unrealized equity investment losses replaced prior-year gains. AFFO per share increased 3.2%, free cash flow was nearly flat, and the company raised its full-year property revenue outlook.

Core Earnings Data

The quarter showed moderate top-line growth, with total tenant billings increasing 1.7% and organic tenant billings rising 1.1%. Reported revenue also absorbed a noncash straight-line revenue contribution of negative $24.0 million, compared with positive $27.7 million a year earlier.

GAAP earnings weakened even as several non-GAAP measures increased. Net income fell 14.4%, while AFFO attributable to common stockholders rose 2.4% and AFFO per share grew 3.2%.

Adjusted EBITDA, AFFO, and free cash flow are non-GAAP or company-defined measures and should be considered alongside the GAAP results.

Business and Segment Performance

Data Centers was the clearest operating growth driver, delivering 16.3% cash revenue growth. Management attributed the performance to continued outperformance at CoreSite, while also citing consistent leasing demand across the global tower portfolio.

Tower-related growth was more measured. Total tenant billings increased by $34 million, or 1.7%, while organic tenant billings rose by $22 million, or 1.1%. The difference between data center growth and organic tenant billings indicates that the two infrastructure platforms entered the final quarter with different growth rates.

Noncash Items Weighed on GAAP Profit While AFFO Held Up

Two noncash factors help explain the divergence between revenue, GAAP earnings, and AFFO. Straight-line revenue shifted from positive $27.7 million in Q3 2025 to negative $24.0 million in Q3 2026, an adverse year-over-year swing of approximately $51.7 million. On a net basis, straight-line revenue less straight-line expense was negative $31.7 million, compared with positive $18.3 million a year earlier, also constraining Adjusted EBITDA growth.

Separately, American Tower recorded approximately $71.5 million of unrealized losses on equity investments, compared with $10.9 million of unrealized gains in the prior-year quarter. That reversal contributed to the declines in GAAP net income and EPS even as property revenue increased.

Cash-oriented measures were more stable. AFFO attributable to common stockholders increased to $1.335 billion, while free cash flow edged up to $986 million. However, Adjusted EBITDA growth of 0.9% remained slower than revenue growth, showing that not all of the higher revenue translated into comparable operating profit growth.

Profitability, Cash Flow, and the Balance Sheet

Property gross margin dollars increased 2.5%, slower than the 4.5% rise in property revenue, and the property gross margin was 73.5%. Adjusted EBITDA increased 0.9% to $1.832 billion, producing a 65.8% margin.

Operating cash flow declined 4.6% to $1.393 billion. Total cash capital expenditures decreased 14.6% to $407 million, which helped free cash flow remain nearly flat at $986 million despite lower operating cash generation.

American Tower ended the quarter with $37.579 billion of total debt and $1.872 billion of cash and cash equivalents, resulting in net debt of $35.707 billion. Its net leverage ratio was 4.9 times annualized Q3 Adjusted EBITDA, while total liquidity was approximately $10.6 billion.

During the quarter, the company issued $1.6 billion of senior unsecured notes due between 2031 and 2036. Proceeds were used to repay $600 million of maturing notes, reduce revolving credit facility borrowings, and fund general corporate purposes. Another $1.0 billion of notes was repaid at maturity in October.

American Tower repurchased approximately 1.8 million shares for $315 million during Q3. It subsequently repurchased another 0.4 million shares for $68 million through October 20, and the board authorized an additional $2.0 billion for future repurchases. The company also declared distributions of $1.79 per share, totaling $831 million, representing 5.3% per-share growth.

The portfolio simplification program also continued. American Tower agreed to sell its Canadian subsidiaries for approximately C$288 million, or about $202 million, with completion expected in Q4 2026 subject to customary conditions.

2026 Guidance

American Tower raised the midpoint of its property revenue outlook by $55 million because of Data Centers outperformance. The Adjusted EBITDA and total AFFO midpoints were unchanged, while the GAAP net income midpoint was lowered because of unrealized equity investment losses. AFFO per share guidance increased by $0.02 at the midpoint, primarily reflecting capital allocation decisions.

The segment outlook remains uneven. At the midpoint, American Tower expects property revenue growth of negative 3.0% in the U.S. and Canada, including a negative impact of more than 3% from straight-line revenue recognition. The corresponding growth rates are 11.0% for Latin America, 16.2% for Africa and APAC, 10.4% for Europe, and 16.1% for Data Centers.

Organic tenant billings growth is expected to be approximately 1% across the tower portfolio. The regional assumptions range from approximately negative 3% in Latin America to positive 8.5% in Africa and APAC, highlighting continued geographic variation in underlying tower demand.

Recent Insider Transactions

The supplied insider data reports 19,938 shares purchased and 7,763 shares sold across six buy-and-sell transactions during the latest six-month period, resulting in net purchases of 12,175 shares. Total insider holdings were listed at approximately 372,770 shares, with a reported net-purchase percentage of 3.40%.

The latest 10 records include two purchases, three sales, and five stock awards or gifts. The reported values below are transaction values rather than share quantities.

Stock awards and gifts reported at zero value are not open-market purchases. These transactions alone do not establish insiders’ views regarding the company’s outlook.

Risks Investors Need to Watch

• Straight-line revenue remains a reporting headwind. The company estimates that lower straight-line revenue recognition will reduce full-year property revenue growth and Adjusted EBITDA growth by approximately two percentage points.
• Equity investment values can create GAAP earnings volatility. Unrealized investment losses contributed to the Q3 net income decline and prompted management to lower its full-year GAAP net income midpoint.
• Underlying tower growth is modest and geographically uneven. Organic tenant billings grew 1.1% in Q3, while the full-year regional outlook ranges from declining billings in Latin America to faster growth in Africa and APAC.
• Leverage remains material. Net leverage was 4.9 times annualized Adjusted EBITDA, with $35.707 billion of net debt, making financing costs and refinancing activity important to cash generation.
• The raised revenue outlook depends on sustained Data Centers performance. The segment is expected to receive $695 million of development spending in 2026 and was the reason for the higher property revenue midpoint.

Summary

American Tower’s Q3 2026 results combined moderate property revenue growth and faster Data Centers expansion with weaker GAAP earnings caused largely by noncash items. AFFO per share and free cash flow remained positive, but organic tower billings and Adjusted EBITDA grew more slowly. The main issues for the remainder of 2026 are whether Data Centers can sustain its performance, whether tower billings improve across weaker regions, and how leverage and noncash accounting effects influence reported results.