Atmos Energy (ATO)
S&P 500 · Utilities · data since 1983-12-28 · last close 2026-09-09
Atmos Energy (ATO) monthly returns (%)
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | -0.8 | 12.9 | -1.1 | 2.9 | -10.5 | 1.9 | -0.3 | -3.3 | 0.3 | · | · | · |
| 2025 | 2.3 | 7.4 | 1.6 | 3.9 | -3.2 | -0.4 | 1.2 | 7.1 | 2.8 | 0.6 | 3.3 | -5.0 |
| 2024 | -1.7 | -0.2 | 5.3 | -0.8 | -1.0 | 0.6 | 9.6 | 2.9 | 6.1 | 0.1 | 9.7 | -8.0 |
| 2023 | 4.9 | -3.4 | -0.4 | 1.6 | 1.6 | 0.9 | 4.6 | -4.1 | -8.6 | 1.6 | 6.5 | 1.8 |
| 2022 | 2.3 | 3.1 | 8.8 | -5.1 | 3.2 | -3.6 | 8.3 | -6.1 | -10.2 | 4.6 | 13.5 | -6.8 |
| 2021 | -6.7 | -4.3 | 16.8 | 4.8 | -3.6 | -3.1 | 2.6 | -0.5 | -9.6 | 4.4 | -1.3 | 16.0 |
| 2020 | 4.6 | -11.3 | -3.9 | 2.8 | 1.4 | -3.1 | 6.4 | -5.3 | -4.2 | -4.1 | 5.3 | -0.5 |
| 2019 | 5.3 | 1.8 | 4.1 | -0.6 | -0.0 | 3.7 | 3.3 | 1.6 | 3.3 | -1.2 | -4.4 | 4.6 |
| 2018 | -3.5 | -2.3 | 4.7 | 3.1 | 3.3 | 1.0 | 1.9 | 0.9 | 1.8 | -0.9 | 3.3 | -3.1 |
| 2017 | 2.7 | 3.4 | 0.9 | 2.6 | 3.4 | -0.4 | 4.6 | 2.0 | -4.8 | 4.1 | 6.4 | -6.9 |
| 2016 | 9.8 | 0.9 | 7.0 | -2.3 | 1.1 | 11.6 | -1.9 | -7.1 | 1.0 | -0.1 | -3.8 | 4.3 |
| 2015 | 2.1 | -6.1 | 4.3 | -2.4 | 0.8 | -5.1 | 7.8 | -0.3 | 6.2 | 8.3 | -0.4 | 1.2 |
| 2014 | 5.7 | -3.2 | 2.2 | 8.3 | -1.1 | 6.6 | -9.5 | 5.4 | -5.7 | 11.1 | 2.1 | 3.8 |
| 2013 | 6.4 | 3.1 | 11.8 | 3.9 | -4.1 | -2.8 | 7.7 | -8.0 | 5.5 | 3.9 | 1.2 | 2.2 |
| 2012 | -2.8 | -4.2 | 2.4 | 3.6 | 2.8 | 5.8 | 2.2 | -1.6 | 2.4 | 0.5 | -1.7 | 0.3 |
| 2011 | 4.5 | 4.8 | 0.8 | 2.3 | -3.4 | -0.3 | 0.5 | 1.4 | -3.3 | 5.8 | 0.7 | -2.5 |
| 2010 | -6.0 | 0.6 | 4.0 | 3.5 | -7.2 | -0.3 | 7.3 | -1.3 | 3.4 | 0.7 | 3.3 | 3.8 |
| 2009 | 3.6 | -9.8 | 5.9 | 6.9 | -1.6 | 4.3 | 8.5 | 1.5 | 3.5 | -1.2 | -0.5 | 7.3 |
| 2008 | 2.5 | -8.5 | -1.9 | 8.6 | 0.1 | 0.7 | -4.0 | 5.3 | -3.3 | -8.8 | 4.2 | -4.9 |
| 2007 | -2.1 | 1.7 | -0.6 | 1.4 | 3.1 | -7.2 | -6.6 | 1.3 | 0.8 | -0.9 | -5.5 | 7.1 |
| 2006 | 0.5 | 1.6 | -0.3 | 0.8 | 2.3 | 4.0 | 3.1 | 1.2 | -0.9 | 7.6 | 7.7 | -2.6 |
| 2005 | 1.3 | 0.7 | -2.1 | -2.6 | 8.8 | 1.8 | 1.3 | 2.6 | -4.5 | -6.9 | 2.2 | -1.5 |
| 2004 | 5.3 | 4.1 | -3.0 | -3.6 | 1.9 | 3.3 | -1.7 | 1.7 | -0.4 | 2.5 | 5.8 | 1.3 |
| 2003 | -4.0 | -3.7 | -0.1 | 7.2 | 10.0 | 0.2 | -1.7 | 1.1 | -1.7 | 2.3 | 1.9 | -1.4 |
| 2002 | -0.7 | 7.1 | 5.8 | 1.4 | -2.1 | 1.3 | -9.3 | 2.3 | 0.3 | 2.3 | 2.8 | 4.6 |
| 2001 | 0.4 | -3.6 | 2.1 | -4.8 | 3.6 | 5.4 | -17.4 | 8.3 | 0.0 | -0.2 | -7.8 | 8.4 |
| 2000 | -14.4 | -0.4 | -4.4 | -3.0 | 17.4 | -4.3 | 17.8 | 1.9 | -0.6 | 12.1 | 9.9 | -3.0 |
| 1999 | -7.6 | -18.6 | 0.3 | 4.9 | 1.6 | -1.5 | 0.0 | 1.3 | -3.7 | -6.0 | -0.4 | -8.4 |
| 1998 | -5.8 | 1.6 | 3.3 | -0.6 | 5.4 | -0.8 | -4.1 | -2.1 | 0.7 | 3.9 | 4.1 | 5.3 |
| 1997 | -4.7 | 8.8 | 3.6 | -10.8 | 3.3 | 3.8 | 0.3 | 13.3 | -8.7 | 1.5 | 6.2 | 13.9 |
| 1996 | -7.6 | 7.6 | 1.7 | 7.6 | -1.6 | 26.9 | -30.2 | 8.2 | 2.2 | 1.6 | 4.9 | -3.0 |
| 1995 | -3.7 | 12.1 | 2.1 | 1.4 | 3.9 | 5.2 | -1.2 | 0.5 | -2.5 | -5.2 | 14.9 | 10.2 |
| 1994 | 5.9 | 2.0 | -9.3 | 7.5 | -2.3 | -0.7 | -3.4 | -3.0 | 4.4 | -7.8 | 7.5 | -2.2 |
| 1993 | -0.5 | 8.9 | -1.0 | 8.5 | 4.9 | 0.5 | 5.3 | 3.6 | 0.4 | 2.0 | -11.0 | 0.9 |
| 1992 | -9.8 | -0.3 | -1.8 | -1.3 | 2.7 | -2.5 | 4.5 | 13.3 | -1.6 | -0.6 | 6.0 | 1.1 |
| 1991 | -5.3 | 11.5 | -1.4 | -2.2 | 7.9 | -0.7 | 2.9 | 11.6 | 6.3 | -4.2 | 4.7 | 10.8 |
| 1990 | -1.4 | 0.9 | 2.9 | -6.3 | 3.2 | -2.9 | 3.8 | 6.2 | -6.3 | -2.2 | 3.4 | -0.8 |
| 1989 | -5.4 | 0.0 | 1.6 | -0.8 | -1.6 | -1.6 | 6.7 | 2.6 | 3.1 | -2.3 | 4.2 | 7.5 |
| 1988 | 13.3 | 10.8 | 1.6 | 0.0 | -4.0 | 2.5 | 6.5 | -7.6 | 6.6 | 5.4 | -4.4 | 0.0 |
| 1987 | 5.0 | -5.6 | -4.2 | 4.4 | -6.8 | 2.7 | -5.3 | 6.5 | -2.6 | -9.9 | 2.0 | -3.9 |
| 1986 | 7.0 | -8.8 | 4.8 | -12.2 | 6.1 | 6.6 | -12.3 | 12.3 | -0.8 | 1.6 | -0.8 | -7.0 |
| 1985 | 7.0 | 0.0 | -1.2 | 10.8 | 13.0 | 9.6 | -8.8 | 0.0 | 1.0 | 13.3 | 10.1 | -2.3 |
| 1984 | 0.0 | 2.3 | 2.9 | -5.7 | 0.0 | 5.3 | -5.0 | -6.1 | 7.3 | 4.5 | 8.6 | 4.0 |
| 1983 | · | · | · | · | · | · | · | · | · | · | · | -0.8 |
| Avg | 0.2 | 0.6 | 1.8 | 1.2 | 1.5 | 1.7 | 0.1 | 1.7 | -0.3 | 1.0 | 3.0 | 1.1 |
Values in %. Current and first-listed months are partial (greyed).
returnsview.com
ATO seasonality — average by calendar month
Atmos Energy has monthly history back to 1983. Its strongest month by median is November — positive in 30 of 42 years, median +3.3%, and higher in 7 of the last 9. Across its full record it has closed 59% of months higher, swings ±5.7% in an average month and has fallen 51.9% peak to trough.
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg | +0.2% | +0.6% | +1.8% | +1.1% | +1.5% | +1.7% | +0.1% | +1.7% | -0.4% | +1.1% | +3.0% | +1.1% |
| Win rate | 51%/43 | 56%/43 | 63%/43 | 58%/43 | 60%/43 | 58%/43 | 58%/43 | 65%/43 | 50%/42 | 60%/42 | 71%/42 | 51%/43 |
Win rate = share of positive months / sample size.
ATO risk & extremes
ATO drawdown & rolling returns
Percent below the all-time high at each month-end — how far underwater the asset was.
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Frequently asked questions
What was Atmos Energy's best month?+
Atmos Energy's strongest completed month on record is June 1996, at +26.94%.
What was Atmos Energy's worst month?+
Its weakest completed month on record is July 1996, at -30.20%.
Is Atmos Energy up this year?+
Atmos Energy is up 0.50% year to date, measured from its last close before 1 January.
What is Atmos Energy's 1-year return?+
+3.27% over the past twelve months, comparing the latest close with the most recent close on or before the same date a year earlier.
What is Atmos Energy's biggest drawdown?+
The deepest peak-to-trough fall on record is 51.9%, measured on month-end closes since 1983.
Which calendar month is historically best for Atmos Energy?+
November has the highest average return across every completed November since 1983. An average is not a forecast.
About Atmos Energy
Atmos Energy is an S&P 500 company, an utilities business worth about $28 billion. It is what “boring but reliable” looks like on a chart — with price receipts on this site going back to 1983. And the long game: $100 at its first close here (1983) would be about $13,383 today.
Did you know?
- Its best month on record was June 1996 at +26.94%; its worst, July 1996 at -30.2%.
- It has closed November in the green 30 out of 42 times — past performance, future shrug.
Trivia for entertainment — the numbers come from our price data; the jokes don't.