Ameren (AEE) seasonality heatmap
Returns across monthly, quarterly, and yearly periods. Cell color encodes signed magnitude; the scale auto-fits each table.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +3.4% | +9.7% | -2.3% | +3.4% | -5.0% | +1.5% | — | — | — | — | — | — |
| 2025 | +5.7% | +7.8% | -0.4% | -1.1% | -2.4% | -0.1% | +5.3% | -1.3% | +5.4% | -2.3% | +4.2% | -5.4% |
| 2024 | -3.8% | +2.3% | +4.8% | -0.1% | -0.7% | -2.2% | +11.5% | +4.1% | +6.8% | -0.4% | +8.4% | -4.9% |
| 2023 | -2.3% | -4.8% | +5.2% | +3.0% | -8.9% | +1.5% | +4.9% | -7.5% | -4.9% | +1.2% | +2.5% | -6.0% |
| 2022 | -0.3% | -3.1% | +9.8% | -0.9% | +2.5% | -4.5% | +3.1% | -0.5% | -12.5% | +1.2% | +9.6% | +0.2% |
| 2021 | -6.8% | -3.4% | +16.7% | +4.3% | -0.8% | -4.3% | +4.9% | +4.5% | -7.1% | +4.1% | -3.2% | +9.8% |
| 2020 | +6.8% | -3.7% | -7.2% | -0.1% | +2.7% | -5.2% | +14.0% | -1.4% | +0.6% | +2.6% | -4.1% | +1.0% |
| 2019 | +6.3% | +2.7% | +3.9% | -1.1% | +0.8% | +3.1% | +0.8% | +1.9% | +4.4% | -2.9% | -4.3% | +4.0% |
| 2018 | -4.0% | -4.1% | +5.2% | +3.5% | +1.0% | +3.7% | +2.0% | +1.9% | +0.7% | +2.1% | +6.3% | -4.3% |
| 2017 | +0.3% | +3.9% | +0.6% | +0.2% | +3.8% | -2.9% | +2.6% | +6.9% | -2.9% | +7.2% | +3.2% | -7.1% |
| 2016 | +3.9% | +4.5% | +7.7% | -4.2% | +3.2% | +9.1% | -2.1% | -5.8% | +0.3% | +1.6% | -1.7% | +7.8% |
| 2015 | -1.8% | -6.3% | +0.5% | -3.0% | -1.7% | -5.3% | +9.0% | -1.9% | +6.1% | +3.3% | +0.2% | -0.2% |
| 2014 | +4.7% | +6.8% | +3.0% | +0.3% | -4.7% | +4.9% | -6.0% | +4.0% | -3.2% | +10.5% | +1.8% | +8.0% |
| 2013 | +5.6% | +4.2% | +4.9% | +3.5% | -6.1% | +2.3% | +4.0% | -5.6% | +4.3% | +3.8% | -0.9% | +2.0% |
| 2012 | -4.5% | +1.3% | +2.9% | +0.6% | -1.5% | +5.1% | +2.0% | -4.3% | +1.0% | +0.7% | -8.8% | +3.9% |
| 2011 | +0.6% | -1.4% | +1.8% | +4.4% | +1.4% | -1.6% | -0.1% | +5.0% | -0.3% | +7.1% | +6.0% | -0.8% |
| 2010 | -8.6% | -3.2% | +7.1% | -0.5% | -5.0% | -2.0% | +6.7% | +10.7% | +2.6% | +2.1% | -1.0% | -0.5% |
| 2009 | -0.1% | -28.5% | -0.6% | -0.7% | +1.0% | +8.8% | +2.2% | +6.1% | -4.9% | -3.7% | +6.8% | +9.1% |
| 2008 | -17.5% | -4.6% | +4.7% | +3.0% | +0.2% | -5.7% | -2.7% | +1.9% | -5.2% | -16.9% | +9.6% | -4.7% |
| 2007 | -1.2% | -1.7% | -2.4% | +4.5% | +0.9% | -6.5% | -2.1% | +5.8% | +4.7% | +3.0% | -0.4% | +1.9% |
| 2006 | -0.9% | -0.2% | -0.4% | +1.1% | -1.8% | +3.3% | +2.0% | +4.0% | -0.2% | +2.5% | +1.1% | -0.6% |
| 2005 | -0.0% | +2.7% | -3.6% | +5.5% | +5.6% | +2.5% | +0.6% | -1.2% | -1.5% | -1.7% | -0.3% | -1.1% |
| 2004 | +5.0% | -1.9% | -1.4% | -5.1% | +1.1% | -1.3% | +4.0% | +4.7% | -0.1% | +4.0% | +0.9% | +5.0% |
| 2003 | -5.4% | -0.9% | +1.8% | +5.0% | +11.0% | -1.7% | -5.3% | +1.8% | +2.4% | +4.1% | -1.2% | +5.8% |
| 2002 | +1.3% | -4.7% | +6.1% | -2.3% | +4.7% | -0.1% | +1.6% | +0.8% | -4.0% | -3.0% | +2.3% | +2.1% |
| 2001 | -12.0% | +3.5% | -1.5% | +2.5% | +6.3% | -2.8% | -8.0% | +5.0% | -5.5% | +4.5% | +1.9% | +5.1% |
| 2000 | -0.6% | -7.9% | +5.6% | +18.6% | +0.0% | -6.3% | +7.2% | +11.7% | +5.2% | -5.1% | +11.6% | +5.9% |
| 1999 | -8.0% | -5.0% | -1.4% | +6.9% | +5.9% | -4.8% | +2.3% | +2.0% | -4.1% | +0.0% | -8.4% | -3.7% |
| 1998 | — | +5.0% | +11.4% | -6.0% | -1.3% | +3.2% | -4.9% | +4.7% | +7.7% | -4.7% | +3.1% | +5.2% |
| Avg | -1.2% | -1.1% | +2.8% | +1.6% | +0.4% | -0.4% | +2.1% | +2.1% | -0.2% | +0.9% | +1.6% | +1.3% |
| Median | -0.4% | -1.4% | +2.9% | +0.6% | +0.8% | -1.5% | +2.1% | +2.0% | +0.1% | +1.8% | +1.5% | +1.5% |
| Last 5Y Avg | +0.5% | +2.4% | +3.4% | +0.8% | -2.9% | -1.9% | +5.9% | -0.2% | -2.4% | +0.8% | +4.3% | -1.3% |
| Std Dev (σ) | 5.8% | 7.0% | 5.0% | 4.6% | 4.2% | 4.4% | 5.1% | 4.6% | 4.9% | 5.1% | 5.1% | 4.9% |
| Consistency (μ/σ) | -0.21 | -0.15 | 0.57 | 0.34 | 0.10 | -0.08 | 0.42 | 0.45 | -0.03 | 0.17 | 0.32 | 0.28 |
| Win Rate (%) | 39% | 41% | 66% | 59% | 55% | 39% | 71% | 68% | 50% | 64% | 61% | 57% |
| Winning / Losing Months | ▲11▼17 | ▲12▼17 | ▲19▼10 | ▲17▼12 | ▲16▼13 | ▲11▼17 | ▲20▼8 | ▲19▼9 | ▲14▼14 | ▲18▼10 | ▲17▼11 | ▲16▼12 |
| Longest Win / Loss Streak | ▲2▼6 | ▲3▼6 | ▲10▼4 | ▲4▼2 | ▲5▼4 | ▲3▼6 | ▲9▼2 | ▲7▼2 | ▲3▼3 | ▲9▼3 | ▲4▼3 | ▲5▼3 |
| Best | +6.8%in January 2020 | +9.7%in February 2026 | +16.7%in March 2021 | +18.6%in April 2000 | +11.0%in May 2003 | +9.1%in June 2016 | +14.0%in July 2020 | +11.7%in August 2000 | +7.7%in September 1998 | +10.5%in October 2014 | +11.6%in November 2000 | +9.8%in December 2021 |
| Worst | -17.5%in January 2008 | -28.5%in February 2009 | -7.2%in March 2020 | -6.0%in April 1998 | -8.9%in May 2023 | -6.5%in June 2007 | -8.0%in July 2001 | -7.5%in August 2023 | -12.5%in September 2022 | -16.9%in October 2008 | -8.8%in November 2012 | -7.1%in December 2017 |
−28.5%+18.6%
2026
Jan+3.4%
Feb+9.7%
Mar-2.3%
Apr+3.4%
May-5.0%
Jun+1.5%
Jul—
Aug—
Sep—
Oct—
Nov—
Dec—
2025
Jan+5.7%
Feb+7.8%
Mar-0.4%
Apr-1.1%
May-2.4%
Jun-0.1%
Jul+5.3%
Aug-1.3%
Sep+5.4%
Oct-2.3%
Nov+4.2%
Dec-5.4%
2024
Jan-3.8%
Feb+2.3%
Mar+4.8%
Apr-0.1%
May-0.7%
Jun-2.2%
Jul+11.5%
Aug+4.1%
Sep+6.8%
Oct-0.4%
Nov+8.4%
Dec-4.9%
2023
Jan-2.3%
Feb-4.8%
Mar+5.2%
Apr+3.0%
May-8.9%
Jun+1.5%
Jul+4.9%
Aug-7.5%
Sep-4.9%
Oct+1.2%
Nov+2.5%
Dec-6.0%
2022
Jan-0.3%
Feb-3.1%
Mar+9.8%
Apr-0.9%
May+2.5%
Jun-4.5%
Jul+3.1%
Aug-0.5%
Sep-12.5%
Oct+1.2%
Nov+9.6%
Dec+0.2%
2021
Jan-6.8%
Feb-3.4%
Mar+16.7%
Apr+4.3%
May-0.8%
Jun-4.3%
Jul+4.9%
Aug+4.5%
Sep-7.1%
Oct+4.1%
Nov-3.2%
Dec+9.8%
2020
Jan+6.8%
Feb-3.7%
Mar-7.2%
Apr-0.1%
May+2.7%
Jun-5.2%
Jul+14.0%
Aug-1.4%
Sep+0.6%
Oct+2.6%
Nov-4.1%
Dec+1.0%
2019
Jan+6.3%
Feb+2.7%
Mar+3.9%
Apr-1.1%
May+0.8%
Jun+3.1%
Jul+0.8%
Aug+1.9%
Sep+4.4%
Oct-2.9%
Nov-4.3%
Dec+4.0%
2018
Jan-4.0%
Feb-4.1%
Mar+5.2%
Apr+3.5%
May+1.0%
Jun+3.7%
Jul+2.0%
Aug+1.9%
Sep+0.7%
Oct+2.1%
Nov+6.3%
Dec-4.3%
2017
Jan+0.3%
Feb+3.9%
Mar+0.6%
Apr+0.2%
May+3.8%
Jun-2.9%
Jul+2.6%
Aug+6.9%
Sep-2.9%
Oct+7.2%
Nov+3.2%
Dec-7.1%
2016
Jan+3.9%
Feb+4.5%
Mar+7.7%
Apr-4.2%
May+3.2%
Jun+9.1%
Jul-2.1%
Aug-5.8%
Sep+0.3%
Oct+1.6%
Nov-1.7%
Dec+7.8%
2015
Jan-1.8%
Feb-6.3%
Mar+0.5%
Apr-3.0%
May-1.7%
Jun-5.3%
Jul+9.0%
Aug-1.9%
Sep+6.1%
Oct+3.3%
Nov+0.2%
Dec-0.2%
2014
Jan+4.7%
Feb+6.8%
Mar+3.0%
Apr+0.3%
May-4.7%
Jun+4.9%
Jul-6.0%
Aug+4.0%
Sep-3.2%
Oct+10.5%
Nov+1.8%
Dec+8.0%
2013
Jan+5.6%
Feb+4.2%
Mar+4.9%
Apr+3.5%
May-6.1%
Jun+2.3%
Jul+4.0%
Aug-5.6%
Sep+4.3%
Oct+3.8%
Nov-0.9%
Dec+2.0%
2012
Jan-4.5%
Feb+1.3%
Mar+2.9%
Apr+0.6%
May-1.5%
Jun+5.1%
Jul+2.0%
Aug-4.3%
Sep+1.0%
Oct+0.7%
Nov-8.8%
Dec+3.9%
2011
Jan+0.6%
Feb-1.4%
Mar+1.8%
Apr+4.4%
May+1.4%
Jun-1.6%
Jul-0.1%
Aug+5.0%
Sep-0.3%
Oct+7.1%
Nov+6.0%
Dec-0.8%
2010
Jan-8.6%
Feb-3.2%
Mar+7.1%
Apr-0.5%
May-5.0%
Jun-2.0%
Jul+6.7%
Aug+10.7%
Sep+2.6%
Oct+2.1%
Nov-1.0%
Dec-0.5%
2009
Jan-0.1%
Feb-28.5%
Mar-0.6%
Apr-0.7%
May+1.0%
Jun+8.8%
Jul+2.2%
Aug+6.1%
Sep-4.9%
Oct-3.7%
Nov+6.8%
Dec+9.1%
2008
Jan-17.5%
Feb-4.6%
Mar+4.7%
Apr+3.0%
May+0.2%
Jun-5.7%
Jul-2.7%
Aug+1.9%
Sep-5.2%
Oct-16.9%
Nov+9.6%
Dec-4.7%
2007
Jan-1.2%
Feb-1.7%
Mar-2.4%
Apr+4.5%
May+0.9%
Jun-6.5%
Jul-2.1%
Aug+5.8%
Sep+4.7%
Oct+3.0%
Nov-0.4%
Dec+1.9%
2006
Jan-0.9%
Feb-0.2%
Mar-0.4%
Apr+1.1%
May-1.8%
Jun+3.3%
Jul+2.0%
Aug+4.0%
Sep-0.2%
Oct+2.5%
Nov+1.1%
Dec-0.6%
2005
Jan-0.0%
Feb+2.7%
Mar-3.6%
Apr+5.5%
May+5.6%
Jun+2.5%
Jul+0.6%
Aug-1.2%
Sep-1.5%
Oct-1.7%
Nov-0.3%
Dec-1.1%
2004
Jan+5.0%
Feb-1.9%
Mar-1.4%
Apr-5.1%
May+1.1%
Jun-1.3%
Jul+4.0%
Aug+4.7%
Sep-0.1%
Oct+4.0%
Nov+0.9%
Dec+5.0%
2003
Jan-5.4%
Feb-0.9%
Mar+1.8%
Apr+5.0%
May+11.0%
Jun-1.7%
Jul-5.3%
Aug+1.8%
Sep+2.4%
Oct+4.1%
Nov-1.2%
Dec+5.8%
2002
Jan+1.3%
Feb-4.7%
Mar+6.1%
Apr-2.3%
May+4.7%
Jun-0.1%
Jul+1.6%
Aug+0.8%
Sep-4.0%
Oct-3.0%
Nov+2.3%
Dec+2.1%
2001
Jan-12.0%
Feb+3.5%
Mar-1.5%
Apr+2.5%
May+6.3%
Jun-2.8%
Jul-8.0%
Aug+5.0%
Sep-5.5%
Oct+4.5%
Nov+1.9%
Dec+5.1%
2000
Jan-0.6%
Feb-7.9%
Mar+5.6%
Apr+18.6%
May+0.0%
Jun-6.3%
Jul+7.2%
Aug+11.7%
Sep+5.2%
Oct-5.1%
Nov+11.6%
Dec+5.9%
1999
Jan-8.0%
Feb-5.0%
Mar-1.4%
Apr+6.9%
May+5.9%
Jun-4.8%
Jul+2.3%
Aug+2.0%
Sep-4.1%
Oct+0.0%
Nov-8.4%
Dec-3.7%
1998
Jan—
Feb+5.0%
Mar+11.4%
Apr-6.0%
May-1.3%
Jun+3.2%
Jul-4.9%
Aug+4.7%
Sep+7.7%
Oct-4.7%
Nov+3.1%
Dec+5.2%
Avg
Jan-1.2%
Feb-1.1%
Mar+2.8%
Apr+1.6%
May+0.4%
Jun-0.4%
Jul+2.1%
Aug+2.1%
Sep-0.2%
Oct+0.9%
Nov+1.6%
Dec+1.3%
Median
Jan-0.4%
Feb-1.4%
Mar+2.9%
Apr+0.6%
May+0.8%
Jun-1.5%
Jul+2.1%
Aug+2.0%
Sep+0.1%
Oct+1.8%
Nov+1.5%
Dec+1.5%
Last 5Y Avg
Jan+0.5%
Feb+2.4%
Mar+3.4%
Apr+0.8%
May-2.9%
Jun-1.9%
Jul+5.9%
Aug-0.2%
Sep-2.4%
Oct+0.8%
Nov+4.3%
Dec-1.3%
Std Dev (σ)
Jan5.8%
Feb7.0%
Mar5.0%
Apr4.6%
May4.2%
Jun4.4%
Jul5.1%
Aug4.6%
Sep4.9%
Oct5.1%
Nov5.1%
Dec4.9%
Consistency (μ/σ)
Jan-0.21
Feb-0.15
Mar0.57
Apr0.34
May0.10
Jun-0.08
Jul0.42
Aug0.45
Sep-0.03
Oct0.17
Nov0.32
Dec0.28
Win Rate (%)
Jan39%
Feb41%
Mar66%
Apr59%
May55%
Jun39%
Jul71%
Aug68%
Sep50%
Oct64%
Nov61%
Dec57%
Winning / Losing Months
Jan▲11▼17
Feb▲12▼17
Mar▲19▼10
Apr▲17▼12
May▲16▼13
Jun▲11▼17
Jul▲20▼8
Aug▲19▼9
Sep▲14▼14
Oct▲18▼10
Nov▲17▼11
Dec▲16▼12
Longest Win / Loss Streak
Jan▲2▼6
Feb▲3▼6
Mar▲10▼4
Apr▲4▼2
May▲5▼4
Jun▲3▼6
Jul▲9▼2
Aug▲7▼2
Sep▲3▼3
Oct▲9▼3
Nov▲4▼3
Dec▲5▼3
Best
Jan+6.8%2020
Feb+9.7%2026
Mar+16.7%2021
Apr+18.6%2000
May+11.0%2003
Jun+9.1%2016
Jul+14.0%2020
Aug+11.7%2000
Sep+7.7%1998
Oct+10.5%2014
Nov+11.6%2000
Dec+9.8%2021
Worst
Jan-17.5%2008
Feb-28.5%2009
Mar-7.2%2020
Apr-6.0%1998
May-8.9%2023
Jun-6.5%2007
Jul-8.0%2001
Aug-7.5%2023
Sep-12.5%2022
Oct-16.9%2008
Nov-8.8%2012
Dec-7.1%2017
−28.5%+18.6%
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