ATO vs. SR
ATO (Atmos Energy Corporation) and SR (Spire Inc.) are both stocks. Both operate in the Utilities - Regulated Gas industry within the Utilities sector. Over the past 10 years, ATO returned 10.80%/yr vs 4.91%/yr for SR. At a 0.45 correlation, their price movements are largely independent.
Performance
ATO vs. SR - Performance Comparison
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Returns By Period
In the year-to-date period, ATO achieves a 2.31% return, which is significantly higher than SR's -6.37% return. Over the past 10 years, ATO has outperformed SR with an annualized return of 10.80%, while SR has yielded a comparatively lower 4.91% annualized return.
ATO
- 1D
- -0.31%
- 1M
- -4.08%
- YTD
- 2.31%
- 6M
- 2.48%
- 1Y
- 12.91%
- 3Y*
- 16.83%
- 5Y*
- 14.55%
- 10Y*
- 10.80%
SR
- 1D
- -1.44%
- 1M
- -11.80%
- YTD
- -6.37%
- 6M
- -6.45%
- 1Y
- 8.45%
- 3Y*
- 11.41%
- 5Y*
- 5.99%
- 10Y*
- 4.91%
ATO vs. SR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
ATO Atmos Energy Corporation | 2.31% | 23.07% | 23.35% | 6.17% | 9.63% | 12.75% | -12.73% | 23.14% | 10.39% | 18.41% |
SR Spire Inc. | -6.37% | 27.08% | 14.12% | -5.26% | 9.81% | 5.86% | -20.18% | 15.81% | 1.74% | 19.88% |
Correlation
The correlation between ATO and SR is 0.66, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.66 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.66 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.68 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.71 |
Correlation (All Time) Calculated using the full available price history since Nov 5, 1987 | 0.45 |
Over the past year, ATO and SR have become more correlated (0.66) than their long-term average of 0.45, meaning their price movements have been converging.
Fundamentals
ATO:
$28.46B
SR:
$4.50B
ATO:
$8.23
SR:
$6.06
ATO:
20.61
SR:
12.53
ATO:
5.68
SR:
1.81
ATO:
0.99
SR:
1.32
ATO:
$4.88B
SR:
$2.47B
ATO:
$1.61B
SR:
$1.81B
ATO:
$2.57B
SR:
$721.80M
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Return for Risk
ATO vs. SR — Risk / Return Rank
ATO
SR
ATO vs. SR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Atmos Energy Corporation (ATO) and Spire Inc. (SR). 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.
| ATO | SR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.38 | ||
| Sortino ratioReturn per unit of downside risk | +0.51 | ||
| Omega ratioGain probability vs. loss probability | 1.15 | 1.09 | +0.06 |
| Calmar ratioReturn relative to maximum drawdown | 1.03 | 0.44 | +0.59 |
| Martin ratioReturn relative to average drawdown | 2.90 | 1.40 | +1.50 |
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Drawdowns
ATO vs. SR - Drawdown Comparison
The maximum ATO drawdown since its inception was -51.94%, which is greater than SR's maximum drawdown of -45.00%. Use the drawdown chart below to compare losses from any high point for ATO and SR.
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Drawdown Indicators
| ATO | SR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -51.94% | -45.00% | -6.94% |
Max Drawdown (1Y)Largest decline over 1 year | -12.58% | -19.39% | +6.81% |
Max Drawdown (3Y)Largest decline over 3 years | -16.87% | -19.39% | +2.52% |
Max Drawdown (5Y)Largest decline over 5 years | -19.08% | -26.05% | +6.97% |
Max Drawdown (10Y)Largest decline over 10 years | -32.91% | -39.53% | +6.62% |
Current DrawdownCurrent decline from peak | -11.31% | -19.39% | +8.08% |
Average DrawdownAverage peak-to-trough decline | -8.56% | -9.49% | +0.93% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.47% | 6.05% | -1.58% |
Volatility
ATO vs. SR - Volatility Comparison
The current volatility for Atmos Energy Corporation (ATO) is 4.42%, while Spire Inc. (SR) has a volatility of 5.63%. This indicates that ATO experiences smaller price fluctuations and is considered to be less risky than SR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| ATO | SR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.42% | 5.63% | -1.21% |
Volatility (6M)Calculated over the trailing 6-month period | 11.00% | 13.30% | -2.30% |
Volatility (1Y)Calculated over the trailing 1-year period | 15.46% | 18.45% | -2.99% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.56% | 21.29% | -2.73% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 21.25% | 24.38% | -3.13% |
Dividends
ATO vs. SR - Dividend Comparison
ATO's dividend yield for the trailing twelve months is around 2.28%, less than SR's 4.29% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ATO Atmos Energy Corporation | 2.28% | 2.15% | 2.36% | 2.61% | 2.48% | 2.44% | 2.46% | 1.92% | 2.14% | 2.14% | 2.31% | 2.52% |
SR Spire Inc. | 4.29% | 3.85% | 4.50% | 4.68% | 4.03% | 4.04% | 3.93% | 2.88% | 3.08% | 2.84% | 3.09% | 3.15% |
Financials
ATO vs. SR - Financials Comparison
This section allows you to compare key financial metrics between Atmos Energy Corporation and Spire Inc.. 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
Frequently Asked Questions
ATO and SR have a correlation of 0.66, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
SR has higher volatility (5.63%) compared to ATO (4.42%). In terms of maximum drawdown, ATO dropped -51.94% vs SR's -45.00%.
ATO currently has the higher Sharpe Ratio (0.84 vs 0.46), 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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