CAH vs. ATO
CAH (Cardinal Health, Inc.) and ATO (Atmos Energy Corporation) are both stocks. CAH operates in Medical Distribution (Healthcare), while ATO operates in Utilities - Regulated Gas (Utilities). Over the past 10 years, CAH returned 14.13%/yr vs 10.90%/yr for ATO. At a 0.21 correlation, their price movements are largely independent.
Performance
CAH vs. ATO - Performance Comparison
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Returns By Period
In the year-to-date period, CAH achieves a 8.15% return, which is significantly higher than ATO's 1.49% return. Over the past 10 years, CAH has outperformed ATO with an annualized return of 14.13%, while ATO has yielded a comparatively lower 10.90% annualized return.
CAH
- 1D
- 2.25%
- 1M
- 21.14%
- YTD
- 8.15%
- 6M
- 12.07%
- 1Y
- 45.67%
- 3Y*
- 38.65%
- 5Y*
- 33.15%
- 10Y*
- 14.13%
ATO
- 1D
- -0.61%
- 1M
- -7.01%
- YTD
- 1.49%
- 6M
- 1.81%
- 1Y
- 12.80%
- 3Y*
- 15.49%
- 5Y*
- 13.35%
- 10Y*
- 10.90%
CAH vs. ATO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CAH Cardinal Health, Inc. | 8.15% | 76.25% | 19.01% | 34.15% | 54.08% | -0.40% | 10.09% | 18.04% | -24.50% | -12.65% |
ATO Atmos Energy Corporation | 1.49% | 23.07% | 23.35% | 6.17% | 9.63% | 12.75% | -12.73% | 23.14% | 10.39% | 18.41% |
Correlation
The correlation between CAH and ATO is 0.29, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.29 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.28 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.31 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.28 |
Correlation (All Time) Calculated using the full available price history since Dec 31, 1987 | 0.21 |
The correlation between CAH and ATO shifts across timeframes, from 0.21 (all time) to 0.31 (5 years), reflecting how their relationship changes across market environments.
Fundamentals
CAH:
$52.19B
ATO:
$28.23B
CAH:
$6.55
ATO:
$8.23
CAH:
33.76
ATO:
20.45
CAH:
0.80
ATO:
2.01
CAH:
0.21
ATO:
5.64
CAH:
$250.55B
ATO:
$4.88B
CAH:
$9.23B
ATO:
$1.61B
CAH:
$2.79B
ATO:
$2.57B
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Return for Risk
CAH vs. ATO — Risk / Return Rank
CAH
ATO
CAH vs. ATO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Cardinal Health, Inc. (CAH) and Atmos Energy Corporation (ATO). 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.
| CAH | ATO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.69 | ||
| Sortino ratioReturn per unit of downside risk | +1.21 | ||
| Omega ratioGain probability vs. loss probability | 1.33 | 1.15 | +0.18 |
| Calmar ratioReturn relative to maximum drawdown | 2.25 | 1.02 | +1.23 |
| Martin ratioReturn relative to average drawdown | 5.91 | 3.11 | +2.80 |
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Drawdowns
CAH vs. ATO - Drawdown Comparison
The maximum CAH drawdown since its inception was -61.93%, which is greater than ATO's maximum drawdown of -51.94%. Use the drawdown chart below to compare losses from any high point for CAH and ATO.
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Drawdown Indicators
| CAH | ATO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -61.93% | -51.94% | -9.99% |
Max Drawdown (1Y)Largest decline over 1 year | -20.42% | -12.58% | -7.84% |
Max Drawdown (3Y)Largest decline over 3 years | -20.42% | -16.87% | -3.55% |
Max Drawdown (5Y)Largest decline over 5 years | -22.80% | -19.08% | -3.72% |
Max Drawdown (10Y)Largest decline over 10 years | -46.13% | -32.91% | -13.22% |
Current DrawdownCurrent decline from peak | -3.56% | -12.02% | +8.46% |
Average DrawdownAverage peak-to-trough decline | -15.94% | -8.56% | -7.38% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 7.75% | 4.12% | +3.63% |
Volatility
CAH vs. ATO - Volatility Comparison
Cardinal Health, Inc. (CAH) has a higher volatility of 7.28% compared to Atmos Energy Corporation (ATO) at 5.15%. This indicates that CAH's price experiences larger fluctuations and is considered to be riskier than ATO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CAH | ATO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.28% | 5.15% | +2.13% |
Volatility (6M)Calculated over the trailing 6-month period | 20.29% | 11.21% | +9.08% |
Volatility (1Y)Calculated over the trailing 1-year period | 30.28% | 15.51% | +14.77% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 25.25% | 18.59% | +6.66% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 29.26% | 21.24% | +8.02% |
Dividends
CAH vs. ATO - Dividend Comparison
CAH's dividend yield for the trailing twelve months is around 0.92%, less than ATO's 2.30% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ATO Atmos Energy Corporation | 2.30% | 2.15% | 2.36% | 2.61% | 2.48% | 2.44% | 2.46% | 1.92% | 2.14% | 2.14% | 2.31% | 2.52% |
CAH Cardinal Health, Inc. | 0.92% | 0.99% | 1.28% | 1.98% | 2.57% | 3.80% | 3.62% | 3.80% | 4.24% | 3.00% | 2.41% | 1.68% |
Financials
CAH vs. ATO - Financials Comparison
This section allows you to compare key financial metrics between Cardinal Health, Inc. and Atmos Energy 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
CAH vs. ATO - Profitability Comparison
CAH - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Cardinal Health, Inc. reported a gross profit of 2.50B and revenue of 60.94B. Therefore, the gross margin over that period was 4.1%.
ATO - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Atmos Energy Corporation reported a gross profit of 0.00 and revenue of 1.96B. Therefore, the gross margin over that period was 0.0%.
CAH - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Cardinal Health, Inc. reported an operating income of 509.00M and revenue of 60.94B, resulting in an operating margin of 0.8%.
ATO - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Atmos Energy Corporation reported an operating income of 764.80M and revenue of 1.96B, resulting in an operating margin of 39.0%.
CAH - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Cardinal Health, Inc. reported a net income of 399.00M and revenue of 60.94B, resulting in a net margin of 0.7%.
ATO - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Atmos Energy Corporation reported a net income of 581.90M and revenue of 1.96B, resulting in a net margin of 29.7%.
Frequently Asked Questions
CAH and ATO have a correlation of 0.29, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CAH has higher volatility (7.28%) compared to ATO (5.15%). In terms of maximum drawdown, CAH dropped -61.93% vs ATO's -51.94%.
CAH currently has the higher Sharpe Ratio (1.52 vs 0.83), 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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