Ticker League

Southern Company (SO) seasonality heatmap

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

2026

Jan+2.4%
Feb+9.9%
Mar-0.9%
Apr+0.2%
May-4.8%
Jun+2.1%
Jul
Aug
Sep
Oct
Nov
Dec

2025

Jan+2.0%
Feb+7.9%
Mar+2.4%
Apr-0.1%
May-1.2%
Jun+2.0%
Jul+2.9%
Aug-1.5%
Sep+2.7%
Oct-0.8%
Nov-2.3%
Dec-4.3%

2024

Jan-0.9%
Feb-2.2%
Mar+6.7%
Apr+2.5%
May+10.0%
Jun-3.2%
Jul+7.7%
Aug+4.3%
Sep+4.4%
Oct+0.9%
Nov-1.3%
Dec-7.6%

2023

Jan-5.2%
Feb-5.9%
Mar+10.3%
Apr+5.7%
May-4.3%
Jun+0.7%
Jul+3.0%
Aug-5.4%
Sep-4.4%
Oct+4.0%
Nov+6.5%
Dec-1.2%

2022

Jan+1.3%
Feb-5.8%
Mar+11.9%
Apr+1.2%
May+4.1%
Jun-5.8%
Jul+7.8%
Aug+1.1%
Sep-11.8%
Oct-3.7%
Nov+4.4%
Dec+5.6%

2021

Jan-4.1%
Feb-2.7%
Mar+9.6%
Apr+6.5%
May-2.4%
Jun-5.3%
Jul+5.6%
Aug+4.0%
Sep-5.7%
Oct+0.6%
Nov-0.9%
Dec+12.2%

2020

Jan+10.5%
Feb-13.5%
Mar-10.3%
Apr+4.8%
May+1.8%
Jun-9.2%
Jul+5.3%
Aug-3.3%
Sep+3.9%
Oct+5.9%
Nov+5.2%
Dec+2.6%

2019

Jan+10.7%
Feb+3.5%
Mar+4.0%
Apr+3.0%
May+1.7%
Jun+3.3%
Jul+1.7%
Aug+4.8%
Sep+6.0%
Oct+1.4%
Nov-0.1%
Dec+2.7%

2018

Jan-6.2%
Feb-3.3%
Mar+3.7%
Apr+3.3%
May-1.3%
Jun+3.2%
Jul+4.9%
Aug-8.8%
Sep-0.4%
Oct+3.3%
Nov+6.5%
Dec-7.2%

2017

Jan+0.5%
Feb+4.0%
Mar-2.1%
Apr+0.0%
May+2.8%
Jun-5.4%
Jul+0.1%
Aug+1.9%
Sep+1.8%
Oct+6.2%
Nov-0.8%
Dec-6.1%

2016

Jan+4.6%
Feb-0.4%
Mar+7.4%
Apr-3.2%
May-0.2%
Jun+8.5%
Jul-0.3%
Aug-3.0%
Sep-0.1%
Oct+0.5%
Nov-8.1%
Dec+5.0%

2015

Jan+3.3%
Feb-8.7%
Mar-3.3%
Apr+0.0%
May-0.1%
Jun-4.1%
Jul+6.7%
Aug-1.8%
Sep+3.0%
Oct+0.9%
Nov-0.1%
Dec+5.1%

2014

Jan+1.6%
Feb+2.7%
Mar+3.8%
Apr+4.3%
May-3.3%
Jun+3.6%
Jul-3.4%
Aug+2.6%
Sep-1.7%
Oct+7.4%
Nov+2.3%
Dec+3.5%

2013

Jan+4.4%
Feb+1.8%
Mar+4.2%
Apr+2.8%
May-8.0%
Jun+0.5%
Jul+1.6%
Aug-6.1%
Sep-1.1%
Oct+0.5%
Nov-0.7%
Dec+1.2%

2012

Jan-1.6%
Feb-2.0%
Mar+1.7%
Apr+2.2%
May+1.0%
Jun+0.9%
Jul+4.0%
Aug-4.9%
Sep+1.7%
Oct+1.6%
Nov-6.1%
Dec-1.7%

2011

Jan-1.6%
Feb+2.6%
Mar+0.0%
Apr+3.7%
May+2.7%
Jun+0.8%
Jul-0.9%
Aug+4.6%
Sep+2.4%
Oct+1.9%
Nov+2.8%
Dec+5.4%

2010

Jan-2.7%
Feb-0.7%
Mar+4.4%
Apr+5.6%
May-5.4%
Jun+1.8%
Jul+7.5%
Aug+3.9%
Sep+1.5%
Oct+2.9%
Nov-0.4%
Dec+1.4%

2009

Jan-8.5%
Feb-9.4%
Mar+1.0%
Apr-4.3%
May-1.7%
Jun+9.7%
Jul+2.1%
Aug-0.7%
Sep+1.5%
Oct-0.2%
Nov+2.9%
Dec+3.8%

2008

Jan-5.1%
Feb-5.1%
Mar+3.2%
Apr+4.6%
May-1.7%
Jun-3.5%
Jul+2.6%
Aug+5.9%
Sep+0.5%
Oct-7.8%
Nov+5.7%
Dec+1.9%

2007

Jan-0.9%
Feb-0.9%
Mar+2.3%
Apr+3.1%
May-3.7%
Jun-4.8%
Jul-1.9%
Aug+6.7%
Sep+2.2%
Oct+1.1%
Nov+3.8%
Dec+3.0%

2006

Jan+0.8%
Feb-1.1%
Mar-3.7%
Apr-0.4%
May-0.8%
Jun+0.2%
Jul+5.4%
Aug+2.6%
Sep+0.6%
Oct+5.6%
Nov+0.7%
Dec+1.7%

2005

Jan+0.8%
Feb-3.9%
Mar-0.9%
Apr+4.7%
May+3.0%
Jun+2.1%
Jul+2.0%
Aug-1.6%
Sep+3.9%
Oct-2.2%
Nov+0.3%
Dec-0.5%

2004

Jan-0.4%
Feb+1.8%
Mar+0.6%
Apr-4.5%
May+0.5%
Jun+0.8%
Jul+1.6%
Aug+3.7%
Sep-1.3%
Oct+6.6%
Nov+3.8%
Dec+2.2%

2003

Jan+0.5%
Feb+0.1%
Mar+0.9%
Apr+2.2%
May+9.5%
Jun-1.0%
Jul-7.6%
Aug-0.2%
Sep+3.4%
Oct+2.7%
Nov-1.8%
Dec+3.4%

2002

Jan-1.4%
Feb+3.0%
Mar+4.4%
Apr+7.0%
May-3.7%
Jun+1.5%
Jul+5.0%
Aug+1.8%
Sep-0.6%
Oct+4.4%
Nov-11.9%
Dec+8.5%

2001

Jan-12.3%
Feb+7.4%
Mar+13.2%
Apr+9.5%
May+2.1%
Jun-1.3%
Jul+1.0%
Aug+0.1%
Sep+3.5%
Oct-0.4%
Nov-3.5%
Dec+11.4%

2000

Jan+9.2%
Feb-12.4%
Mar-1.9%
Apr+15.9%
May+4.2%
Jun-10.3%
Jul+5.0%
Aug+24.0%
Sep+8.5%
Oct-9.4%
Nov+8.6%
Dec+5.3%

1999

Jan-6.2%
Feb-6.8%
Mar-7.1%
Apr+17.5%
May+4.9%
Jun-6.6%
Jul+0.8%
Aug+2.7%
Sep-4.8%
Oct+4.4%
Nov-12.1%
Dec+0.7%

1998

Jan-4.6%
Feb+1.4%
Mar+12.1%
Apr-3.0%
May+0.2%
Jun+4.1%
Jul-6.7%
Aug+10.3%
Sep+4.7%
Oct-3.1%
Nov+4.6%
Dec-1.3%

1997

Jan-2.0%
Feb-0.6%
Mar-2.9%
Apr-3.5%
May+5.5%
Jun+3.5%
Jul+1.7%
Aug-3.9%
Sep+7.2%
Oct+2.9%
Nov+4.7%
Dec+7.7%

1996

Jan+3.0%
Feb-4.5%
Mar+0.0%
Apr-8.0%
May+6.9%
Jun+6.5%
Jul-8.2%
Aug+0.9%
Sep+0.0%
Oct-0.3%
Nov+0.6%
Dec+1.7%

1995

Jan+5.7%
Feb-1.3%
Mar-1.0%
Apr+2.7%
May+7.0%
Jun+1.2%
Jul-1.5%
Aug-2.5%
Sep+10.9%
Oct+1.7%
Nov-2.8%
Dec+7.6%

1994

Jan-1.4%
Feb-4.1%
Mar-7.6%
Apr+4.3%
May-5.2%
Jun+1.2%
Jul+5.1%
Aug-2.6%
Sep-1.1%
Oct+6.5%
Nov+5.8%
Dec-3.4%

1993

Jan+1.6%
Feb+6.9%
Mar+3.4%
Apr+0.4%
May-3.6%
Jun+3.8%
Jul-0.4%
Aug+7.3%
Sep+1.0%
Oct+1.0%
Nov-3.7%
Dec+2.1%

1992

Jan-3.4%
Feb-4.6%
Mar+2.7%
Apr+4.7%
May+3.0%
Jun+3.4%
Jul+9.8%
Aug-1.7%
Sep+2.2%
Oct-1.7%
Nov-2.6%
Dec+7.0%

1991

Jan-4.5%
Feb+6.1%
Mar+3.8%
Apr-1.9%
May-1.9%
Jun+1.3%
Jul+1.9%
Aug-0.6%
Sep+10.0%
Oct+1.1%
Nov+4.5%
Dec+9.7%

1990

Jan-5.4%
Feb-3.6%
Mar+0.7%
Apr-7.4%
May+4.8%
Jun+1.5%
Jul+3.0%
Aug-8.0%
Sep+0.8%
Oct+12.5%
Nov+2.8%
Dec+4.1%

1989

Jan+6.7%
Feb+0.0%
Mar-0.9%
Apr+4.5%
May+8.7%
Jun+3.2%
Jul+7.0%
Aug-0.7%
Sep-1.5%
Oct+2.2%
Nov+2.9%
Dec+4.2%

1988

Jan+9.9%
Feb-4.5%
Mar-2.7%
Apr-0.5%
May+7.1%
Jun-1.0%
Jul+1.0%
Aug-5.3%
Sep-0.5%
Oct+4.0%
Nov-1.0%
Dec+4.0%

1987

Jan+12.3%
Feb-1.8%
Mar-3.7%
Apr-6.3%
May-4.8%
Jun+5.4%
Jul-3.0%
Aug+0.0%
Sep-3.1%
Oct-2.2%
Nov+1.7%
Dec+3.5%

1986

Jan+1.1%
Feb+5.1%
Mar+6.0%
Apr-6.1%
May-1.6%
Jun+7.3%
Jul+5.9%
Aug+9.6%
Sep-10.6%
Oct+8.4%
Nov+2.2%
Dec-3.0%

1985

Jan-1.5%
Feb+2.0%
Mar+8.2%
Apr+0.6%
May+5.7%
Jun+6.6%
Jul-4.0%
Aug-1.3%
Sep-4.8%
Oct+7.0%
Nov+6.1%
Dec+3.0%

1984

Jan-0.5%
Feb-5.4%
Mar+2.4%
Apr+0.9%
May-3.5%
Jun+2.5%
Jul+3.9%
Aug+8.3%
Sep+6.1%
Oct+5.1%
Nov+2.8%
Dec+4.2%

1983

Jan+2.3%
Feb+2.7%
Mar-2.3%
Apr+5.0%
May-1.4%
Jun-0.8%
Jul-3.1%
Aug+4.2%
Sep+8.1%
Oct+3.8%
Nov+1.3%
Dec-3.7%

1982

Jan+4.6%
Feb+0.0%
Mar+8.4%
Apr+1.0%
May-2.8%
Jun+0.0%
Jul+6.3%
Aug+12.8%
Sep+0.7%
Oct+4.8%
Nov+1.8%
Dec+3.3%

1981

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

Avg

Jan+0.4%
Feb-1.0%
Mar+2.0%
Apr+1.9%
May+0.7%
Jun+0.7%
Jul+2.0%
Aug+1.5%
Sep+1.1%
Oct+2.1%
Nov+0.8%
Dec+2.5%

Median

Jan+0.5%
Feb-0.9%
Mar+2.3%
Apr+2.2%
May-0.1%
Jun+1.2%
Jul+2.0%
Aug+0.5%
Sep+1.3%
Oct+1.8%
Nov+1.5%
Dec+3.0%

Last 5Y Avg

Jan-0.1%
Feb+0.8%
Mar+6.1%
Apr+1.9%
May+0.8%
Jun-2.3%
Jul+5.4%
Aug+0.5%
Sep-3.0%
Oct+0.2%
Nov+1.3%
Dec+0.9%

Std Dev (σ)

Jan5.2%
Feb5.1%
Mar5.2%
Apr5.1%
May4.4%
Jun4.4%
Jul4.2%
Aug6.0%
Sep4.7%
Oct4.0%
Nov4.5%
Dec4.5%

Consistency (μ/σ)

Jan0.08
Feb-0.20
Mar0.39
Apr0.37
May0.15
Jun0.15
Jul0.48
Aug0.25
Sep0.24
Oct0.52
Nov0.18
Dec0.55

Win Rate (%)

Jan51%
Feb38%
Mar62%
Apr71%
May49%
Jun66%
Jul73%
Aug52%
Sep61%
Oct75%
Nov59%
Dec75%

Winning / Losing Months

Jan2322
Feb1728
Mar2817
Apr3213
May2223
Jun2915
Jul3212
Aug2321
Sep2717
Oct3311
Nov2618
Dec3311

Longest Win / Loss Streak

Jan56
Feb46
Mar54
Apr83
May75
Jun103
Jul92
Aug56
Sep85
Oct122
Nov63
Dec73

Best

Jan+12.3%1987
Feb+9.9%2026
Mar+13.2%2001
Apr+17.5%1999
May+10.0%2024
Jun+9.7%2009
Jul+9.8%1992
Aug+24.0%2000
Sep+10.9%1995
Oct+12.5%1990
Nov+8.6%2000
Dec+12.2%2021

Worst

Jan-12.3%2001
Feb-13.5%2020
Mar-10.3%2020
Apr-8.0%1996
May-8.0%2013
Jun-10.3%2000
Jul-8.2%1996
Aug-8.8%2018
Sep-11.8%2022
Oct-9.4%2000
Nov-12.1%1999
Dec-7.6%2024
−13.5%+24.0%

Frequently asked questions

Data & methodology