ATO monthly performance report
Monthly ATO research: returns, drawdown, relative strength, seasonality, and key stats.
ATO monthly report
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Key takeaways
- Atmos Energy (ATO) closed September 2026 at $163.19, down 1.77% for the month and −1.92% over the trailing 12 months.
- Year-to-date, ATO is −2.65%, underperforming the S&P 500 which has returned +12.08% YTD.
- The stock is trading −7.00% versus its 200-day moving average ($175.48), a cautious technical signal.
- Over the past three years, ATO has underperformed the S&P 500 by −27.19%, with a relative strength index reading of 84.
- Win rate over the trailing 39 months stands at 61.5% — 24 positive months versus 15 negative months.
Atmos Energy ended September 2026 at $163.19, posting a monthly return of −1.77%. The S&P 500 returned −0.36% over the same window, leaving relative performance at −1.41%.
The current quarter stands at −5.27% (Q3 2026 (QTD)), while medium-term trend remains soft: price is −7.00% versus the 200-day moving average ($175.48).
Year-to-date, ATO is −2.65% against SPY +12.08%, a gap of −14.73%. The stock is currently −15.23% below its 52-week high, with maximum 3-year drawdown at −15.13%.
| Period | ATO | S&P 500 (SPY) | Excess return |
|---|---|---|---|
| 1 Day | −0.98% | +0.85% | −1.84% |
| 1 Week | −2.68% | −0.11% | −2.56% |
| 1 Month | −1.77% | −0.36% | −1.41% |
| 3 Months | −2.64% | +5.36% | −8.00% |
| 6 Months | −11.81% | +12.68% | −24.49% |
| YTD | −2.65% | +12.08% | −14.73% |
| 12 Months | −1.92% | +16.22% | −18.14% |
| 3 Years | +43.24% | +70.43% | −27.19% |
| 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) | −5.27% |
| Year | Return |
|---|---|
| 2023 | +3.42% |
| 2024 | +20.16% |
| 2025 | +20.36% |
| 2026 | −2.65% |
| Metric | Value |
|---|---|
| 52-Week High | $192.51 (2026-04-09) |
| 52-Week Low | $160.10 (2025-09-18) |
| Current Price | $163.19 |
| 200-Day Moving Average | $175.48 |
| Price vs 200DMA | −7.00% |
| 3-Year Maximum Drawdown | −15.13% (2026-09-11) |
| Current Drawdown from 52W High | −15.23% |
| RS metric | Value |
|---|---|
| RS Index (3-year, rebased to 100) | 84 |
| 3-Year Excess Return vs S&P 500 | −27.19% |
| RS Peak | 119.9 (Apr 2025) |
| RS Trough | 80.9 (Jul 2024) |
| Status | Underperforming Benchmark |
Frequently asked questions
What was ATO's return for this report period?
ATO returned −1.77% in the latest monthly window ending 2026-09-11.
Has ATO outperformed SPY year to date?
YTD ATO: −2.65% vs SPY: +12.08%.
What is ATO's 12-month return?
−1.92% over the trailing 12 months.
Is ATO above or below its 200-day moving average?
Price is −7.00% versus 200DMA ($175.48).
What is the maximum drawdown in the 3-year window?
−15.13% on 2026-09-11.