ATO monthly performance report
Check ATO's monthly returns, drawdown, and seasonality trends — updated every month.
ATO monthly report
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Key takeaways
- Atmos Energy (ATO) closed September 2026 at $160.30, down 3.51% for the month and −1.32% over the trailing 12 months.
- Year-to-date, ATO is −4.37%, underperforming the S&P 500 which has returned +11.70% YTD.
- The stock is trading −8.48% versus its 200-day moving average ($175.16), a cautious technical signal.
- Over the past three years, ATO has underperformed the S&P 500 by −31.69%, with a relative strength index reading of 81.5.
- Win rate over the trailing 39 months stands at 61.5% — 24 positive months versus 15 negative months.
Atmos Energy ended September 2026 at $160.30, posting a monthly return of −3.51%. The S&P 500 returned −0.70% over the same window, leaving relative performance at −2.81%.
The current quarter stands at −6.95% (Q3 2026 (QTD)), while medium-term trend remains soft: price is −8.48% versus the 200-day moving average ($175.16).
Year-to-date, ATO is −4.37% against SPY +11.70%, a gap of −16.07%. The stock is currently −16.73% below its 52-week high, with maximum 3-year drawdown at −16.64%.
| Period | ATO | S&P 500 (SPY) | Excess return |
|---|---|---|---|
| 1 Day | −1.07% | −0.12% | −0.95% |
| 1 Week | −1.77% | −0.34% | −1.43% |
| 1 Month | −3.51% | −0.70% | −2.81% |
| 3 Months | −5.50% | +2.80% | −8.30% |
| 6 Months | −15.00% | +13.85% | −28.85% |
| YTD | −4.37% | +11.70% | −16.07% |
| 12 Months | −1.32% | +15.01% | −16.33% |
| 3 Years | +40.00% | +71.69% | −31.69% |
| Rank | Month | Return |
|---|---|---|
| #1 | Feb 2026 | +12.29% |
| #2 | Jul 2024 | +9.63% |
| #3 | Nov 2024 | +9.04% |
| #4 | Feb 2025 | +6.75% |
| #5 | Aug 2025 | +6.55% |
| Rank | Month | Return |
|---|---|---|
| #1 | May 2026 | −10.97% |
| #2 | Sep 2023 | −8.64% |
| #3 | Dec 2024 | −7.96% |
| #4 | Dec 2025 | −4.96% |
| #5 | Aug 2023 | −4.73% |
| Quarter | Return |
|---|---|
| Q2 2025 | −0.30% |
| Q3 2025 | +10.80% |
| Q4 2025 | −1.83% |
| Q1 2026 | +10.20% |
| Q2 2026 | −6.74% |
| Q3 2026 (QTD) | −6.95% |
| Year | Return |
|---|---|
| 2023 | +3.42% |
| 2024 | +20.16% |
| 2025 | +20.36% |
| 2026 | −4.37% |
| Metric | Value |
|---|---|
| 52-Week High | $192.51 (2026-04-09) |
| 52-Week Low | $159.98 (2026-09-18) |
| Current Price | $160.30 |
| 200-Day Moving Average | $175.16 |
| Price vs 200DMA | −8.48% |
| 3-Year Maximum Drawdown | −16.64% (2026-09-18) |
| Current Drawdown from 52W High | −16.73% |
| RS metric | Value |
|---|---|
| RS Index (3-year, rebased to 100) | 81.5 |
| 3-Year Excess Return vs S&P 500 | −31.69% |
| RS Peak | 118 (Apr 2025) |
| RS Trough | 79.6 (Jul 2024) |
| Status | Underperforming Benchmark |
Frequently asked questions
What was ATO's return for this report period?
ATO returned −3.51% in the latest monthly window ending 2026-09-18.
Has ATO outperformed SPY year to date?
YTD ATO: −4.37% vs SPY: +11.70%.
What is ATO's 12-month return?
−1.32% over the trailing 12 months.
Is ATO above or below its 200-day moving average?
Price is −8.48% versus 200DMA ($175.16).
What is the maximum drawdown in the 3-year window?
−16.64% on 2026-09-18.