O vs. AMT
O (Realty Income Corporation) and AMT (American Tower Corporation) are both stocks. Both are in the Real Estate sector — O in REIT - Retail, AMT in REIT - Specialty. Over the past 10 years, O returned 4.58%/yr vs 8.14%/yr for AMT. At a 0.37 correlation, their price movements are largely independent.
Performance
O vs. AMT - Performance Comparison
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Returns By Period
In the year-to-date period, O achieves a 8.26% return, which is significantly higher than AMT's 4.84% return. Over the past 10 years, O has underperformed AMT with an annualized return of 4.58%, while AMT has yielded a comparatively higher 8.14% annualized return.
O
- 1D
- -0.32%
- 1M
- -5.46%
- YTD
- 8.26%
- 6M
- 5.55%
- 1Y
- 12.57%
- 3Y*
- 5.73%
- 5Y*
- 2.47%
- 10Y*
- 4.58%
AMT
- 1D
- -1.77%
- 1M
- 0.75%
- YTD
- 4.84%
- 6M
- 5.49%
- 1Y
- -11.45%
- 3Y*
- 1.89%
- 5Y*
- -4.38%
- 10Y*
- 8.14%
O vs. AMT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
O Realty Income Corporation | 8.26% | 12.20% | -2.11% | -4.55% | -7.38% | 23.95% | -11.60% | 21.27% | 15.94% | 3.67% |
AMT American Tower Corporation | 4.84% | -0.92% | -12.16% | 5.37% | -25.67% | 32.89% | -0.48% | 47.87% | 13.32% | 37.71% |
Correlation
The correlation between O and AMT is 0.40, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.40 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.53 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.57 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.53 |
Correlation (All Time) Calculated using the full available price history since Jun 8, 1998 | 0.37 |
The correlation between O and AMT shifts across timeframes, from 0.37 (all time) to 0.57 (5 years), reflecting how their relationship changes across market environments.
Fundamentals
O:
$1.17
AMT:
$6.14
O:
50.86
AMT:
29.66
O:
4.14
AMT:
8.46
O:
6.87
AMT:
7.89
O:
$5.92B
AMT:
$10.82B
O:
$3.89B
AMT:
$7.94B
O:
$3.93B
AMT:
$6.71B
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Return for Risk
O vs. AMT — Risk / Return Rank
O
AMT
O vs. AMT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Realty Income Corporation (O) and American Tower Corporation (AMT). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
| O | AMT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.29 | ||
| Sortino ratioReturn per unit of downside risk | +1.68 | ||
| Omega ratioGain probability vs. loss probability | 1.14 | 0.94 | +0.21 |
| Calmar ratioReturn relative to maximum drawdown | 1.14 | -0.43 | +1.57 |
| Martin ratioReturn relative to average drawdown | 2.88 | -0.63 | +3.51 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| O | AMT | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.79 | -0.50 | +1.29 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.13 | -0.17 | +0.30 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.18 | 0.31 | -0.13 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.48 | 0.20 | +0.28 |
Drawdowns
O vs. AMT - Drawdown Comparison
The maximum O drawdown since its inception was -48.45%, smaller than the maximum AMT drawdown of -98.70%. Use the drawdown chart below to compare losses from any high point for O and AMT.
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Drawdown Indicators
| O | AMT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -48.45% | -98.70% | +50.25% |
Max Drawdown (1Y)Largest decline over 1 year | -11.10% | -26.67% | +15.57% |
Max Drawdown (3Y)Largest decline over 3 years | -26.49% | -27.54% | +1.05% |
Max Drawdown (5Y)Largest decline over 5 years | -34.48% | -45.34% | +10.86% |
Max Drawdown (10Y)Largest decline over 10 years | -48.28% | -45.34% | -2.94% |
Current DrawdownCurrent decline from peak | -10.44% | -30.49% | +20.05% |
Average DrawdownAverage peak-to-trough decline | -9.21% | -27.02% | +17.81% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.37% | 18.22% | -13.85% |
Volatility
O vs. AMT - Volatility Comparison
The current volatility for Realty Income Corporation (O) is 5.48%, while American Tower Corporation (AMT) has a volatility of 7.26%. This indicates that O experiences smaller price fluctuations and is considered to be less risky than AMT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| O | AMT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.48% | 7.26% | -1.78% |
Volatility (6M)Calculated over the trailing 6-month period | 11.72% | 18.40% | -6.68% |
Volatility (1Y)Calculated over the trailing 1-year period | 15.95% | 23.21% | -7.26% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.87% | 26.23% | -7.36% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 25.63% | 26.12% | -0.49% |
Dividends
O vs. AMT - Dividend Comparison
O's dividend yield for the trailing twelve months is around 5.42%, more than AMT's 3.78% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AMT American Tower Corporation | 3.78% | 3.87% | 3.53% | 2.99% | 2.77% | 1.78% | 2.02% | 1.64% | 1.99% | 1.84% | 2.05% | 1.87% |
O Realty Income Corporation | 5.42% | 6.19% | 5.37% | 5.33% | 4.68% | 3.87% | 4.51% | 3.69% | 4.19% | 4.45% | 4.18% | 4.41% |
Financials
O vs. AMT - Financials Comparison
This section allows you to compare key financial metrics between Realty Income Corporation and American Tower Corporation. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
O vs. AMT - Profitability Comparison
O - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Realty Income Corporation reported a gross profit of 0.00 and revenue of 1.55B. Therefore, the gross margin over that period was 0.0%.
AMT - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, American Tower Corporation reported a gross profit of 2.02B and revenue of 2.74B. Therefore, the gross margin over that period was 73.9%.
O - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Realty Income Corporation reported an operating income of 0.00 and revenue of 1.55B, resulting in an operating margin of 0.0%.
AMT - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, American Tower Corporation reported an operating income of 1.16B and revenue of 2.74B, resulting in an operating margin of 42.4%.
O - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Realty Income Corporation reported a net income of -9.17M and revenue of 1.55B, resulting in a net margin of -0.6%.
AMT - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, American Tower Corporation reported a net income of 836.80M and revenue of 2.74B, resulting in a net margin of 30.6%.
Frequently Asked Questions
O and AMT have a correlation of 0.40, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AMT has higher volatility (7.26%) compared to O (5.48%). In terms of maximum drawdown, O dropped -48.45% vs AMT's -98.70%.
O currently has the higher Sharpe Ratio (0.79 vs -0.49), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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