O vs. COST
O (Realty Income Corporation) and COST (Costco Wholesale Corporation) are both stocks. O operates in REIT - Retail (Real Estate), while COST operates in Discount Stores (Consumer Defensive). Over the past 10 years, O returned 4.89%/yr vs 22.27%/yr for COST. At a 0.27 correlation, their price movements are largely independent.
Performance
O vs. COST - Performance Comparison
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Returns By Period
The year-to-date returns for both investments are quite close, with O having a 13.70% return and COST slightly higher at 14.24%. Over the past 10 years, O has underperformed COST with an annualized return of 4.89%, while COST has yielded a comparatively higher 22.27% annualized return.
O
- 1D
- 1.31%
- 1M
- 1.67%
- YTD
- 13.70%
- 6M
- 11.57%
- 1Y
- 14.88%
- 3Y*
- 6.59%
- 5Y*
- 3.49%
- 10Y*
- 4.89%
COST
- 1D
- 0.68%
- 1M
- -5.66%
- YTD
- 14.24%
- 6M
- 11.38%
- 1Y
- -0.24%
- 3Y*
- 25.12%
- 5Y*
- 22.12%
- 10Y*
- 22.27%
O vs. COST - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
O Realty Income Corporation | 13.70% | 12.20% | -2.11% | -4.55% | -7.38% | 23.95% | -11.60% | 21.27% | 15.94% | 3.67% |
COST Costco Wholesale Corporation | 14.24% | -5.39% | 39.62% | 49.00% | -19.05% | 51.82% | 32.67% | 45.70% | 10.60% | 22.37% |
Correlation
The correlation between O and COST is 0.25, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.25 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.17 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.28 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.27 |
Correlation (All Time) Calculated using the full available price history since Oct 18, 1994 | 0.27 |
The correlation between O and COST shifts across timeframes, from 0.17 (3 years) to 0.28 (5 years), reflecting how their relationship changes across market environments.
Fundamentals
O:
$1.17
COST:
$26.51
O:
53.41
COST:
37.06
O:
4.35
COST:
2.90
O:
7.22
COST:
1.12
O:
$5.92B
COST:
$293.59B
O:
$3.89B
COST:
$11.12B
O:
$3.93B
COST:
$12.48B
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Return for Risk
O vs. COST — Risk / Return Rank
O
COST
O vs. COST - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Realty Income Corporation (O) and Costco Wholesale Corporation (COST). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| O | COST | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.96 | ||
| Sortino ratioReturn per unit of downside risk | +1.24 | ||
| Omega ratioGain probability vs. loss probability | 1.15 | 1.00 | +0.15 |
| Calmar ratioReturn relative to maximum drawdown | 1.29 | -0.10 | +1.39 |
| Martin ratioReturn relative to average drawdown | 3.12 | -0.22 | +3.34 |
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Drawdowns
O vs. COST - Drawdown Comparison
The maximum O drawdown since its inception was -48.45%, smaller than the maximum COST drawdown of -53.39%. Use the drawdown chart below to compare losses from any high point for O and COST.
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Drawdown Indicators
| O | COST | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -48.45% | -53.39% | +4.94% |
Max Drawdown (1Y)Largest decline over 1 year | -11.10% | -15.14% | +4.04% |
Max Drawdown (3Y)Largest decline over 3 years | -26.49% | -20.74% | -5.75% |
Max Drawdown (5Y)Largest decline over 5 years | -34.48% | -31.40% | -3.08% |
Max Drawdown (10Y)Largest decline over 10 years | -48.28% | -31.40% | -16.88% |
Current DrawdownCurrent decline from peak | -5.94% | -10.23% | +4.29% |
Average DrawdownAverage peak-to-trough decline | -9.20% | -13.36% | +4.16% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.58% | 6.67% | -2.09% |
Volatility
O vs. COST - Volatility Comparison
The current volatility for Realty Income Corporation (O) is 5.29%, while Costco Wholesale Corporation (COST) has a volatility of 7.44%. This indicates that O experiences smaller price fluctuations and is considered to be less risky than COST based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| O | COST | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.29% | 7.44% | -2.15% |
Volatility (6M)Calculated over the trailing 6-month period | 11.98% | 14.53% | -2.55% |
Volatility (1Y)Calculated over the trailing 1-year period | 16.21% | 18.80% | -2.59% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.92% | 22.72% | -3.80% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 25.64% | 21.95% | +3.69% |
Dividends
O vs. COST - Dividend Comparison
O's dividend yield for the trailing twelve months is around 5.16%, more than COST's 0.55% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
COST Costco Wholesale Corporation | 0.55% | 0.59% | 0.49% | 2.87% | 0.76% | 0.54% | 3.38% | 0.86% | 1.08% | 4.81% | 1.09% | 4.06% |
O Realty Income Corporation | 5.16% | 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. COST - Financials Comparison
This section allows you to compare key financial metrics between Realty Income Corporation and Costco Wholesale 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. COST - 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%.
COST - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Costco Wholesale Corporation reported a gross profit of -17.68B and revenue of 70.53B. Therefore, the gross margin over that period was -25.1%.
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%.
COST - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Costco Wholesale Corporation reported an operating income of 2.82B and revenue of 70.53B, resulting in an operating margin of 4.0%.
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%.
COST - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Costco Wholesale Corporation reported a net income of 2.19B and revenue of 70.53B, resulting in a net margin of 3.1%.
Frequently Asked Questions
O and COST have a correlation of 0.25, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
COST has higher volatility (7.44%) compared to O (5.29%). In terms of maximum drawdown, O dropped -48.45% vs COST's -53.39%.
O currently has the higher Sharpe Ratio (0.88 vs -0.08), 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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