American Tower Corporation (AMT) vs Realty Income Corporation (O)

A side-by-side comparison of American Tower Corporation and Realty Income Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of July 28, 2026. Differences are shown without an overall score or investment verdict.

Compare

Total returnAMT vs O

growth of $100 · dividends reinvested · last 28y
AMT +1237.3%O +2551.6%O compounded faster
01k2kStart $10020032008201320182023$1,337$2,652
AMT O

AMT vs O: by the numbers

  • AMT is the larger company ($79.90B vs $61.29B market cap).
  • AMT trades at the lower trailing earnings multiple (26.94 vs 53.69 P/E), one valuation lens rather than an overall verdict.
  • AMT converts more revenue to profit (30.88% vs 18.94% net margin).
  • O grew revenue faster over the past five years (28.65% vs 4.95% CAGR).
  • O pays the higher dividend yield (4.95% vs 4.19%).

Metrics side by side

Valuation

MetricAMTO
P/E ratio26.9453.69
Forward P/E25.2942.36
P/S ratio7.1910.01
P/B ratio21.311.51
PEG ratio2.762.49
EV / EBITDA17.6821.08

Profitability

MetricAMTO
Gross margin73.19%89.80%
Operating margin44.40%29.27%
Net margin30.88%18.94%
ROE90.83%2.86%
ROIC9.25%2.45%

Dividends

MetricAMTO
Dividend yield4.19%4.95%
Payout ratio129.26%276.84%

Growth (annualized)

MetricAMTO
Revenue CAGR (5Y)4.95%28.65%
EPS CAGR (5Y)7.23%0.35%
Total return CAGR (5Y)-6.22%4.31%

Frequently asked

Which has the lower trailing P/E, AMT or O?
AMT has the lower trailing P/E: AMT trades at 26.94 and O at 53.69. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, AMT or O?
Over the past five years, O grew revenue faster — AMT at a 4.95% CAGR versus O at 28.65%.
Does AMT or O pay a bigger dividend?
AMT yields 4.19% and O yields 4.95% based on trailing dividends and the latest price.
Is AMT or O more profitable?
AMT runs the higher net margin — AMT at 30.88% versus O at 18.94%.
How have AMT and O total returns compared?
Over the past 10 years, AMT delivered 6.93% and O delivered 4.59% annualized total return. Past performance doesn't predict future results.

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified July 28, 2026.