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Stock Seasonality for Atmos Energy (ATO) 1983-2026

Atmos Energy (ATO) historical monthly and quarterly returns. Dividend-adjusted performance data.

Atmos Energy (ATO) seasonality heatmap

Returns across monthly, quarterly, and yearly periods. Cell color encodes signed magnitude; the scale auto-fits each table.

2026

Jan-0.8%
Feb+12.9%
Mar-1.1%
Apr+3.4%
May-11.0%
Jun+1.9%
Jul+3.1%
Aug
Sep
Oct
Nov
Dec

2025

Jan+2.3%
Feb+7.4%
Mar+1.6%
Apr+3.9%
May-3.2%
Jun-0.4%
Jul+1.2%
Aug+7.1%
Sep+2.8%
Oct+0.6%
Nov+3.3%
Dec-5.0%

2024

Jan-1.7%
Feb-0.2%
Mar+5.3%
Apr-0.8%
May-1.0%
Jun+0.6%
Jul+9.6%
Aug+2.9%
Sep+6.1%
Oct+0.1%
Nov+9.7%
Dec-8.0%

2023

Jan+4.9%
Feb-3.4%
Mar-0.4%
Apr+1.6%
May+1.7%
Jun+0.9%
Jul+4.6%
Aug-4.1%
Sep-8.6%
Oct+1.6%
Nov+6.5%
Dec+1.8%

2022

Jan+2.3%
Feb+3.1%
Mar+8.8%
Apr-5.1%
May+3.2%
Jun-3.6%
Jul+8.3%
Aug-6.1%
Sep-10.2%
Oct+4.6%
Nov+13.5%
Dec-6.8%

2021

Jan-6.7%
Feb-4.3%
Mar+16.8%
Apr+4.8%
May-3.7%
Jun-3.1%
Jul+2.6%
Aug-0.5%
Sep-9.6%
Oct+4.5%
Nov-1.2%
Dec+16.0%

2020

Jan+4.6%
Feb-11.3%
Mar-3.9%
Apr+2.8%
May+1.4%
Jun-3.1%
Jul+6.4%
Aug-5.3%
Sep-4.2%
Oct-4.1%
Nov+5.3%
Dec-0.5%

2019

Jan+5.3%
Feb+1.8%
Mar+4.1%
Apr-0.6%
May-0.0%
Jun+3.7%
Jul+3.3%
Aug+1.6%
Sep+3.3%
Oct-1.2%
Nov-4.4%
Dec+4.6%

2018

Jan-3.5%
Feb-2.3%
Mar+4.7%
Apr+3.1%
May+3.3%
Jun+1.0%
Jul+1.9%
Aug+0.9%
Sep+1.8%
Oct-0.9%
Nov+3.3%
Dec-3.1%

2017

Jan+2.7%
Feb+3.4%
Mar+0.9%
Apr+2.6%
May+3.4%
Jun-0.4%
Jul+4.6%
Aug+2.0%
Sep-4.8%
Oct+4.1%
Nov+6.4%
Dec-6.9%

2016

Jan+9.8%
Feb+0.9%
Mar+7.0%
Apr-2.3%
May+1.1%
Jun+11.6%
Jul-1.9%
Aug-7.1%
Sep+1.0%
Oct-0.1%
Nov-3.8%
Dec+4.3%

2015

Jan+2.1%
Feb-6.1%
Mar+4.3%
Apr-2.3%
May+0.8%
Jun-5.1%
Jul+7.8%
Aug-0.2%
Sep+6.2%
Oct+8.3%
Nov-0.4%
Dec+1.2%

2014

Jan+5.7%
Feb-3.2%
Mar+2.3%
Apr+8.3%
May-1.1%
Jun+6.6%
Jul-9.5%
Aug+5.4%
Sep-5.7%
Oct+11.1%
Nov+2.1%
Dec+3.8%

2013

Jan+6.4%
Feb+3.1%
Mar+11.9%
Apr+3.9%
May-4.1%
Jun-2.7%
Jul+7.7%
Aug-8.0%
Sep+5.5%
Oct+4.0%
Nov+1.2%
Dec+2.2%

2012

Jan-2.8%
Feb-4.2%
Mar+2.4%
Apr+3.6%
May+2.8%
Jun+5.8%
Jul+2.2%
Aug-1.6%
Sep+2.4%
Oct+0.5%
Nov-1.7%
Dec+0.3%

2011

Jan+4.5%
Feb+4.8%
Mar+0.8%
Apr+2.3%
May-3.4%
Jun-0.3%
Jul+0.5%
Aug+1.4%
Sep-3.2%
Oct+5.7%
Nov+0.7%
Dec-2.5%

2010

Jan-6.0%
Feb+0.6%
Mar+4.0%
Apr+3.5%
May-7.2%
Jun-0.3%
Jul+7.2%
Aug-1.2%
Sep+3.4%
Oct+0.7%
Nov+3.2%
Dec+3.8%

2009

Jan+3.6%
Feb-9.8%
Mar+5.9%
Apr+6.8%
May-1.5%
Jun+4.3%
Jul+8.5%
Aug+1.4%
Sep+3.5%
Oct-1.2%
Nov-0.5%
Dec+7.3%

2008

Jan+2.5%
Feb-8.4%
Mar-2.0%
Apr+8.6%
May+0.1%
Jun+0.7%
Jul-4.0%
Aug+5.3%
Sep-3.4%
Oct-8.8%
Nov+4.2%
Dec-4.9%

2007

Jan-2.1%
Feb+1.7%
Mar-0.6%
Apr+1.4%
May+3.1%
Jun-7.2%
Jul-6.6%
Aug+1.3%
Sep+0.8%
Oct-1.0%
Nov-5.4%
Dec+7.0%

2006

Jan+0.4%
Feb+1.6%
Mar-0.3%
Apr+0.8%
May+2.4%
Jun+4.0%
Jul+3.0%
Aug+1.2%
Sep-0.9%
Oct+7.7%
Nov+7.7%
Dec-2.6%

2005

Jan+1.3%
Feb+0.7%
Mar-2.1%
Apr-2.6%
May+8.8%
Jun+1.8%
Jul+1.2%
Aug+2.6%
Sep-4.5%
Oct-6.9%
Nov+2.2%
Dec-1.5%

2004

Jan+5.3%
Feb+4.2%
Mar-3.0%
Apr-3.6%
May+1.9%
Jun+3.3%
Jul-1.7%
Aug+1.7%
Sep-0.4%
Oct+2.5%
Nov+5.8%
Dec+1.4%

2003

Jan-3.9%
Feb-3.7%
Mar-0.1%
Apr+7.2%
May+10.1%
Jun+0.2%
Jul-1.7%
Aug+1.1%
Sep-1.7%
Oct+2.3%
Nov+1.9%
Dec-1.5%

2002

Jan-0.8%
Feb+7.2%
Mar+5.8%
Apr+1.4%
May-2.1%
Jun+1.3%
Jul-9.3%
Aug+2.4%
Sep+0.2%
Oct+2.3%
Nov+2.7%
Dec+4.6%

2001

Jan+0.3%
Feb-3.6%
Mar+2.1%
Apr-4.7%
May+3.7%
Jun+5.4%
Jul-17.4%
Aug+8.3%
Sep0.0%
Oct-0.2%
Nov-7.8%
Dec+8.4%

2000

Jan-14.3%
Feb-0.5%
Mar-4.4%
Apr-3.0%
May+17.3%
Jun-4.5%
Jul+17.9%
Aug+2.0%
Sep-0.6%
Oct+12.1%
Nov+10.0%
Dec-3.0%

1999

Jan-7.5%
Feb-18.6%
Mar+0.3%
Apr+4.9%
May+1.6%
Jun-1.5%
Jul0.0%
Aug+1.3%
Sep-3.7%
Oct-6.0%
Nov-0.4%
Dec-8.4%

1998

Jan-5.8%
Feb+1.5%
Mar+3.4%
Apr-0.7%
May+5.3%
Jun-0.8%
Jul-4.1%
Aug-2.1%
Sep+0.7%
Oct+3.9%
Nov+4.0%
Dec+5.3%

1997

Jan-4.7%
Feb+8.9%
Mar+3.6%
Apr-10.9%
May+3.4%
Jun+3.8%
Jul+0.2%
Aug+14.3%
Sep-8.7%
Oct+1.5%
Nov+6.2%
Dec+13.9%

1996

Jan-7.6%
Feb+7.6%
Mar+1.6%
Apr+7.6%
May-1.5%
Jun+26.8%
Jul-30.2%
Aug+8.3%
Sep+2.1%
Oct+1.7%
Nov+4.8%
Dec-3.1%

1995

Jan-3.6%
Feb+12.1%
Mar+2.0%
Apr+1.4%
May+3.9%
Jun+5.3%
Jul-1.3%
Aug+0.5%
Sep-2.5%
Oct-5.0%
Nov+14.8%
Dec+10.1%

1994

Jan+5.9%
Feb+1.9%
Mar-9.3%
Apr+7.6%
May-2.5%
Jun-0.7%
Jul-3.3%
Aug-3.0%
Sep+4.5%
Oct-7.8%
Nov+7.7%
Dec-2.2%

1993

Jan-0.5%
Feb+8.7%
Mar-0.8%
Apr+8.5%
May+4.7%
Jun+0.6%
Jul+5.2%
Aug+3.5%
Sep+0.3%
Oct+2.2%
Nov-11.0%
Dec+0.9%

1992

Jan-9.7%
Feb-0.3%
Mar-1.7%
Apr-1.4%
May+2.8%
Jun-2.5%
Jul+4.5%
Aug+13.3%
Sep-1.7%
Oct-0.5%
Nov+5.9%
Dec+1.2%

1991

Jan-5.1%
Feb+11.6%
Mar-1.7%
Apr-2.1%
May+7.9%
Jun-0.7%
Jul+2.7%
Aug+11.8%
Sep+6.2%
Oct-4.1%
Nov+4.6%
Dec+10.7%

1990

Jan-1.5%
Feb+0.7%
Mar+3.0%
Apr-6.5%
May+3.4%
Jun-3.0%
Jul+3.8%
Aug+6.3%
Sep-6.2%
Oct-2.2%
Nov+3.4%
Dec-0.7%

1989

Jan-5.2%
Feb+1.8%
Mar+1.8%
Apr-0.9%
May0.0%
Jun-1.8%
Jul+6.8%
Aug+2.6%
Sep+3.3%
Oct-2.4%
Nov+4.1%
Dec+7.9%

1988

Jan+13.6%
Feb+12.5%
Mar+1.4%
Apr0.0%
May-2.4%
Jun+2.9%
Jul+6.2%
Aug-5.8%
Sep+6.6%
Oct+5.3%
Nov-3.0%
Dec0.0%

1987

Jan+4.9%
Feb-4.1%
Mar-4.3%
Apr+4.5%
May-5.4%
Jun+2.9%
Jul-5.6%
Aug+8.8%
Sep-2.7%
Oct-10.0%
Nov+4.3%
Dec-4.1%

1986

Jan+7.0%
Feb-7.1%
Mar+4.9%
Apr-12.4%
May+8.3%
Jun+6.0%
Jul-11.9%
Aug+14.0%
Sep-1.0%
Oct+1.6%
Nov+0.5%
Dec-6.6%

1985

Jan+5.8%
Feb+3.6%
Mar-0.9%
Apr+10.6%
May+16.8%
Jun+9.6%
Jul-8.8%
Aug+1.4%
Sep+1.4%
Oct+13.3%
Nov+11.8%
Dec-2.6%

1984

Jan0.0%
Feb+1.6%
Mar+3.7%
Apr-6.5%
May0.0%
Jun+6.0%
Jul-5.7%
Aug-6.0%
Sep+7.9%
Oct+4.5%
Nov+8.6%
Dec+4.2%

1983

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Avg

Jan+0.2%
Feb+0.8%
Mar+1.8%
Apr+1.1%
May+1.7%
Jun+1.8%
Jul+0.1%
Aug+2.0%
Sep-0.3%
Oct+1.1%
Nov+3.1%
Dec+1.1%

Median

Jan+0.3%
Feb+1.5%
Mar+1.6%
Apr+1.4%
May+1.6%
Jun+0.7%
Jul+1.6%
Aug+1.4%
Sep+0.1%
Oct+1.1%
Nov+3.4%
Dec+0.6%

Last 5Y Avg

Jan+1.4%
Feb+3.9%
Mar+2.8%
Apr+0.6%
May-2.1%
Jun-0.1%
Jul+5.3%
Aug-0.1%
Sep-3.9%
Oct+2.3%
Nov+6.3%
Dec-0.4%

Std Dev (σ)

Jan5.6%
Feb6.6%
Mar4.5%
Apr5.1%
May5.4%
Jun5.5%
Jul8.2%
Aug5.5%
Sep4.6%
Oct5.2%
Nov5.4%
Dec5.8%

Consistency (μ/σ)

Jan0.03
Feb0.12
Mar0.40
Apr0.22
May0.31
Jun0.32
Jul0.02
Aug0.36
Sep-0.07
Oct0.20
Nov0.58
Dec0.19

Win Rate (%)

Jan51%
Feb60%
Mar63%
Apr58%
May60%
Jun58%
Jul60%
Aug69%
Sep50%
Oct60%
Nov74%
Dec52%

Winning / Losing Months

Jan2221
Feb2617
Mar2716
Apr2518
May2617
Jun2518
Jul2517
Aug2913
Sep2121
Oct2517
Nov3111
Dec2220

Longest Win / Loss Streak

Jan56
Feb63
Mar116
Apr95
May63
Jun64
Jul94
Aug114
Sep24
Oct64
Nov52
Dec54

Best

Jan+13.6%1988
Feb+12.9%2026
Mar+16.8%2021
Apr+10.6%1985
May+17.3%2000
Jun+26.8%1996
Jul+17.9%2000
Aug+14.3%1997
Sep+7.9%1984
Oct+13.3%1985
Nov+14.8%1995
Dec+16.0%2021

Worst

Jan-14.3%2000
Feb-18.6%1999
Mar-9.3%1994
Apr-12.4%1986
May-11.0%2026
Jun-7.2%2007
Jul-30.2%1996
Aug-8.0%2013
Sep-10.2%2022
Oct-10.0%1987
Nov-11.0%1993
Dec-8.4%1999
-30.2%+26.8%

Frequently asked questions

Data & methodology