Arch Capital Group (ACGL) 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 | +0.1% | +4.3% | -4.2% | -1.6% | -5.4% | +2.6% | — | — | — | — | — | — |
| 2025 | +0.8% | -0.2% | +3.5% | -5.7% | +4.8% | -4.2% | -5.5% | +6.4% | -0.9% | -4.9% | +8.8% | +2.1% |
| 2024 | +11.0% | +6.3% | +5.5% | +1.2% | +9.7% | -1.7% | -5.1% | +18.1% | -1.1% | -11.9% | +7.5% | -8.3% |
| 2023 | +2.5% | +8.8% | -3.0% | +10.6% | -7.1% | +7.4% | +3.8% | -1.1% | +3.7% | +8.7% | -3.4% | -11.3% |
| 2022 | +4.2% | +1.7% | +2.8% | -5.7% | +3.9% | -4.1% | -2.4% | +3.0% | -0.4% | +26.3% | +4.2% | +4.8% |
| 2021 | -12.9% | +14.0% | +7.1% | +3.5% | +0.5% | -2.4% | +0.2% | +5.4% | -7.1% | +9.5% | -3.4% | +10.1% |
| 2020 | +3.0% | -8.5% | -29.6% | -15.6% | +17.4% | +1.5% | +7.3% | +2.6% | -7.3% | +3.3% | +6.5% | +12.1% |
| 2019 | +9.8% | +11.3% | -1.1% | +4.5% | +1.9% | +7.7% | +4.3% | +2.1% | +6.3% | -0.5% | +0.5% | +2.2% |
| 2018 | +0.2% | -2.9% | -3.0% | -6.4% | -2.1% | +1.2% | +15.5% | +0.0% | -2.5% | -4.8% | +0.9% | -6.6% |
| 2017 | +2.4% | +7.1% | +0.2% | +2.3% | +0.3% | -4.1% | +4.3% | +0.1% | +1.2% | +1.2% | -5.0% | -4.1% |
| 2016 | -3.2% | +0.6% | +4.7% | -0.9% | +3.1% | -0.9% | +0.9% | +11.5% | -2.1% | -1.6% | +6.1% | +4.3% |
| 2015 | -1.9% | +2.1% | +4.2% | -1.5% | +5.3% | +4.8% | +6.6% | -4.3% | +7.6% | +1.9% | -3.2% | -3.7% |
| 2014 | -9.8% | +4.3% | +2.5% | -0.4% | -0.7% | +0.9% | -7.0% | +4.0% | -1.6% | +2.9% | +1.8% | +3.1% |
| 2013 | +5.4% | +5.8% | +7.0% | +1.0% | -3.5% | +0.4% | +5.3% | -1.6% | +1.5% | +7.1% | +1.5% | +1.4% |
| 2012 | -3.1% | +2.7% | +0.5% | +5.5% | -2.7% | +3.8% | -2.2% | +2.8% | +4.3% | +5.8% | +2.4% | -2.4% |
| 2011 | +0.2% | +2.6% | +9.6% | +4.9% | -2.7% | -5.3% | +5.8% | -0.3% | -3.0% | +10.0% | +5.0% | -1.4% |
| 2010 | +0.0% | +3.4% | +3.1% | -0.9% | -2.8% | +1.3% | +5.1% | +1.9% | +5.0% | +3.2% | +4.5% | -2.5% |
| 2009 | -14.2% | -10.2% | -0.4% | +7.2% | -1.6% | +3.2% | +6.1% | +4.4% | +4.1% | -0.3% | +3.8% | +2.3% |
| 2008 | +0.1% | -2.7% | +0.3% | +2.8% | -0.4% | -5.7% | +5.1% | +0.0% | +4.7% | -4.5% | -2.8% | +3.5% |
| 2007 | -4.5% | -0.1% | +5.9% | +6.7% | -1.2% | +0.8% | -3.9% | +3.1% | +3.6% | +0.5% | -6.7% | +0.8% |
| 2006 | -0.7% | +4.2% | +2.0% | +5.2% | -5.6% | +3.6% | +2.4% | -2.0% | +6.5% | +1.2% | +4.0% | +1.1% |
| 2005 | -5.1% | +12.9% | -3.4% | +0.0% | +11.6% | +0.8% | +2.1% | -5.6% | +14.2% | -0.2% | +5.9% | +4.3% |
| 2004 | +10.0% | -3.2% | -0.7% | -4.7% | -4.2% | +3.7% | -3.3% | -4.9% | +6.2% | -3.4% | +3.8% | -0.7% |
| 2003 | -2.1% | +2.5% | +8.8% | +2.2% | +6.5% | -6.4% | -1.1% | -0.8% | -2.8% | +10.6% | +1.0% | +7.9% |
| 2002 | -0.7% | +5.2% | -3.9% | +12.8% | +1.9% | -5.4% | -4.0% | +3.9% | -0.3% | +0.3% | +8.1% | +2.8% |
| 2001 | +3.2% | +3.7% | -0.6% | -0.6% | +6.0% | -6.2% | +7.2% | +5.1% | -5.3% | +40.1% | +0.8% | +8.8% |
| 2000 | +16.5% | +3.9% | +7.5% | -5.8% | -3.1% | +0.0% | +3.8% | -2.4% | +3.8% | -1.2% | -3.7% | +0.0% |
| 1999 | -5.7% | -7.4% | -20.4% | -4.4% | +10.5% | -15.4% | +3.5% | +6.8% | +4.4% | -16.4% | -0.7% | -2.9% |
| 1998 | +0.0% | +5.1% | +2.8% | +4.3% | -0.8% | +0.0% | +0.0% | -12.5% | +0.9% | -5.6% | +3.7% | +1.3% |
| 1997 | -14.1% | -1.1% | +3.4% | +11.7% | +0.0% | +10.4% | +1.8% | +4.4% | +3.0% | -1.2% | +1.3% | -3.3% |
| 1996 | -13.0% | -0.5% | +1.4% | -3.2% | -0.5% | -1.0% | -11.1% | -3.3% | +12.9% | -5.5% | -2.1% | +10.2% |
| 1995 | — | — | — | — | — | — | — | — | — | +0.9% | -6.0% | +13.3% |
| Avg | -0.7% | +2.4% | +0.4% | +0.9% | +1.3% | -0.4% | +1.5% | +1.6% | +2.0% | +2.3% | +1.4% | +1.6% |
| Median | +0.0% | +2.7% | +2.0% | +1.0% | -0.4% | +0.2% | +2.2% | +2.0% | +2.3% | +0.5% | +1.5% | +1.4% |
| Last 5Y Avg | +3.7% | +4.2% | +0.9% | -0.2% | +1.2% | -1.0% | -1.8% | +6.3% | -1.1% | +5.6% | +2.7% | -0.5% |
| Std Dev (σ) | 7.3% | 5.6% | 7.8% | 6.0% | 5.6% | 5.1% | 5.4% | 5.6% | 5.1% | 10.3% | 4.3% | 5.8% |
| Consistency (μ/σ) | -0.10 | 0.43 | 0.05 | 0.16 | 0.23 | -0.07 | 0.28 | 0.28 | 0.39 | 0.22 | 0.34 | 0.27 |
| Win Rate (%) | 48% | 68% | 65% | 52% | 45% | 50% | 63% | 60% | 60% | 55% | 68% | 61% |
| Winning / Losing Months | ▲15▼16 | ▲21▼10 | ▲20▼11 | ▲16▼15 | ▲14▼17 | ▲15▼15 | ▲19▼11 | ▲18▼12 | ▲18▼12 | ▲17▼14 | ▲21▼10 | ▲19▼12 |
| Longest Win / Loss Streak | ▲5▼4 | ▲8▼3 | ▲8▼3 | ▲4▼3 | ▲4▼9 | ▲4▼6 | ▲7▼3 | ▲7▼4 | ▲7▼3 | ▲6▼5 | ▲6▼2 | ▲5▼3 |
| Best | +16.5%in January 2000 | +14.0%in February 2021 | +9.6%in March 2011 | +12.8%in April 2002 | +17.4%in May 2020 | +10.4%in June 1997 | +15.5%in July 2018 | +18.1%in August 2024 | +14.2%in September 2005 | +40.1%in October 2001 | +8.8%in November 2025 | +13.3%in December 1995 |
| Worst | -14.2%in January 2009 | -10.2%in February 2009 | -29.6%in March 2020 | -15.6%in April 2020 | -7.1%in May 2023 | -15.4%in June 1999 | -11.1%in July 1996 | -12.5%in August 1998 | -7.3%in September 2020 | -16.4%in October 1999 | -6.7%in November 2007 | -11.3%in December 2023 |
−29.6%+40.1%
2026
Jan+0.1%
Feb+4.3%
Mar-4.2%
Apr-1.6%
May-5.4%
Jun+2.6%
Jul—
Aug—
Sep—
Oct—
Nov—
Dec—
2025
Jan+0.8%
Feb-0.2%
Mar+3.5%
Apr-5.7%
May+4.8%
Jun-4.2%
Jul-5.5%
Aug+6.4%
Sep-0.9%
Oct-4.9%
Nov+8.8%
Dec+2.1%
2024
Jan+11.0%
Feb+6.3%
Mar+5.5%
Apr+1.2%
May+9.7%
Jun-1.7%
Jul-5.1%
Aug+18.1%
Sep-1.1%
Oct-11.9%
Nov+7.5%
Dec-8.3%
2023
Jan+2.5%
Feb+8.8%
Mar-3.0%
Apr+10.6%
May-7.1%
Jun+7.4%
Jul+3.8%
Aug-1.1%
Sep+3.7%
Oct+8.7%
Nov-3.4%
Dec-11.3%
2022
Jan+4.2%
Feb+1.7%
Mar+2.8%
Apr-5.7%
May+3.9%
Jun-4.1%
Jul-2.4%
Aug+3.0%
Sep-0.4%
Oct+26.3%
Nov+4.2%
Dec+4.8%
2021
Jan-12.9%
Feb+14.0%
Mar+7.1%
Apr+3.5%
May+0.5%
Jun-2.4%
Jul+0.2%
Aug+5.4%
Sep-7.1%
Oct+9.5%
Nov-3.4%
Dec+10.1%
2020
Jan+3.0%
Feb-8.5%
Mar-29.6%
Apr-15.6%
May+17.4%
Jun+1.5%
Jul+7.3%
Aug+2.6%
Sep-7.3%
Oct+3.3%
Nov+6.5%
Dec+12.1%
2019
Jan+9.8%
Feb+11.3%
Mar-1.1%
Apr+4.5%
May+1.9%
Jun+7.7%
Jul+4.3%
Aug+2.1%
Sep+6.3%
Oct-0.5%
Nov+0.5%
Dec+2.2%
2018
Jan+0.2%
Feb-2.9%
Mar-3.0%
Apr-6.4%
May-2.1%
Jun+1.2%
Jul+15.5%
Aug+0.0%
Sep-2.5%
Oct-4.8%
Nov+0.9%
Dec-6.6%
2017
Jan+2.4%
Feb+7.1%
Mar+0.2%
Apr+2.3%
May+0.3%
Jun-4.1%
Jul+4.3%
Aug+0.1%
Sep+1.2%
Oct+1.2%
Nov-5.0%
Dec-4.1%
2016
Jan-3.2%
Feb+0.6%
Mar+4.7%
Apr-0.9%
May+3.1%
Jun-0.9%
Jul+0.9%
Aug+11.5%
Sep-2.1%
Oct-1.6%
Nov+6.1%
Dec+4.3%
2015
Jan-1.9%
Feb+2.1%
Mar+4.2%
Apr-1.5%
May+5.3%
Jun+4.8%
Jul+6.6%
Aug-4.3%
Sep+7.6%
Oct+1.9%
Nov-3.2%
Dec-3.7%
2014
Jan-9.8%
Feb+4.3%
Mar+2.5%
Apr-0.4%
May-0.7%
Jun+0.9%
Jul-7.0%
Aug+4.0%
Sep-1.6%
Oct+2.9%
Nov+1.8%
Dec+3.1%
2013
Jan+5.4%
Feb+5.8%
Mar+7.0%
Apr+1.0%
May-3.5%
Jun+0.4%
Jul+5.3%
Aug-1.6%
Sep+1.5%
Oct+7.1%
Nov+1.5%
Dec+1.4%
2012
Jan-3.1%
Feb+2.7%
Mar+0.5%
Apr+5.5%
May-2.7%
Jun+3.8%
Jul-2.2%
Aug+2.8%
Sep+4.3%
Oct+5.8%
Nov+2.4%
Dec-2.4%
2011
Jan+0.2%
Feb+2.6%
Mar+9.6%
Apr+4.9%
May-2.7%
Jun-5.3%
Jul+5.8%
Aug-0.3%
Sep-3.0%
Oct+10.0%
Nov+5.0%
Dec-1.4%
2010
Jan+0.0%
Feb+3.4%
Mar+3.1%
Apr-0.9%
May-2.8%
Jun+1.3%
Jul+5.1%
Aug+1.9%
Sep+5.0%
Oct+3.2%
Nov+4.5%
Dec-2.5%
2009
Jan-14.2%
Feb-10.2%
Mar-0.4%
Apr+7.2%
May-1.6%
Jun+3.2%
Jul+6.1%
Aug+4.4%
Sep+4.1%
Oct-0.3%
Nov+3.8%
Dec+2.3%
2008
Jan+0.1%
Feb-2.7%
Mar+0.3%
Apr+2.8%
May-0.4%
Jun-5.7%
Jul+5.1%
Aug+0.0%
Sep+4.7%
Oct-4.5%
Nov-2.8%
Dec+3.5%
2007
Jan-4.5%
Feb-0.1%
Mar+5.9%
Apr+6.7%
May-1.2%
Jun+0.8%
Jul-3.9%
Aug+3.1%
Sep+3.6%
Oct+0.5%
Nov-6.7%
Dec+0.8%
2006
Jan-0.7%
Feb+4.2%
Mar+2.0%
Apr+5.2%
May-5.6%
Jun+3.6%
Jul+2.4%
Aug-2.0%
Sep+6.5%
Oct+1.2%
Nov+4.0%
Dec+1.1%
2005
Jan-5.1%
Feb+12.9%
Mar-3.4%
Apr+0.0%
May+11.6%
Jun+0.8%
Jul+2.1%
Aug-5.6%
Sep+14.2%
Oct-0.2%
Nov+5.9%
Dec+4.3%
2004
Jan+10.0%
Feb-3.2%
Mar-0.7%
Apr-4.7%
May-4.2%
Jun+3.7%
Jul-3.3%
Aug-4.9%
Sep+6.2%
Oct-3.4%
Nov+3.8%
Dec-0.7%
2003
Jan-2.1%
Feb+2.5%
Mar+8.8%
Apr+2.2%
May+6.5%
Jun-6.4%
Jul-1.1%
Aug-0.8%
Sep-2.8%
Oct+10.6%
Nov+1.0%
Dec+7.9%
2002
Jan-0.7%
Feb+5.2%
Mar-3.9%
Apr+12.8%
May+1.9%
Jun-5.4%
Jul-4.0%
Aug+3.9%
Sep-0.3%
Oct+0.3%
Nov+8.1%
Dec+2.8%
2001
Jan+3.2%
Feb+3.7%
Mar-0.6%
Apr-0.6%
May+6.0%
Jun-6.2%
Jul+7.2%
Aug+5.1%
Sep-5.3%
Oct+40.1%
Nov+0.8%
Dec+8.8%
2000
Jan+16.5%
Feb+3.9%
Mar+7.5%
Apr-5.8%
May-3.1%
Jun+0.0%
Jul+3.8%
Aug-2.4%
Sep+3.8%
Oct-1.2%
Nov-3.7%
Dec+0.0%
1999
Jan-5.7%
Feb-7.4%
Mar-20.4%
Apr-4.4%
May+10.5%
Jun-15.4%
Jul+3.5%
Aug+6.8%
Sep+4.4%
Oct-16.4%
Nov-0.7%
Dec-2.9%
1998
Jan+0.0%
Feb+5.1%
Mar+2.8%
Apr+4.3%
May-0.8%
Jun+0.0%
Jul+0.0%
Aug-12.5%
Sep+0.9%
Oct-5.6%
Nov+3.7%
Dec+1.3%
1997
Jan-14.1%
Feb-1.1%
Mar+3.4%
Apr+11.7%
May+0.0%
Jun+10.4%
Jul+1.8%
Aug+4.4%
Sep+3.0%
Oct-1.2%
Nov+1.3%
Dec-3.3%
1996
Jan-13.0%
Feb-0.5%
Mar+1.4%
Apr-3.2%
May-0.5%
Jun-1.0%
Jul-11.1%
Aug-3.3%
Sep+12.9%
Oct-5.5%
Nov-2.1%
Dec+10.2%
1995
Jan—
Feb—
Mar—
Apr—
May—
Jun—
Jul—
Aug—
Sep—
Oct+0.9%
Nov-6.0%
Dec+13.3%
Avg
Jan-0.7%
Feb+2.4%
Mar+0.4%
Apr+0.9%
May+1.3%
Jun-0.4%
Jul+1.5%
Aug+1.6%
Sep+2.0%
Oct+2.3%
Nov+1.4%
Dec+1.6%
Median
Jan+0.0%
Feb+2.7%
Mar+2.0%
Apr+1.0%
May-0.4%
Jun+0.2%
Jul+2.2%
Aug+2.0%
Sep+2.3%
Oct+0.5%
Nov+1.5%
Dec+1.4%
Last 5Y Avg
Jan+3.7%
Feb+4.2%
Mar+0.9%
Apr-0.2%
May+1.2%
Jun-1.0%
Jul-1.8%
Aug+6.3%
Sep-1.1%
Oct+5.6%
Nov+2.7%
Dec-0.5%
Std Dev (σ)
Jan7.3%
Feb5.6%
Mar7.8%
Apr6.0%
May5.6%
Jun5.1%
Jul5.4%
Aug5.6%
Sep5.1%
Oct10.3%
Nov4.3%
Dec5.8%
Consistency (μ/σ)
Jan-0.10
Feb0.43
Mar0.05
Apr0.16
May0.23
Jun-0.07
Jul0.28
Aug0.28
Sep0.39
Oct0.22
Nov0.34
Dec0.27
Win Rate (%)
Jan48%
Feb68%
Mar65%
Apr52%
May45%
Jun50%
Jul63%
Aug60%
Sep60%
Oct55%
Nov68%
Dec61%
Winning / Losing Months
Jan▲15▼16
Feb▲21▼10
Mar▲20▼11
Apr▲16▼15
May▲14▼17
Jun▲15▼15
Jul▲19▼11
Aug▲18▼12
Sep▲18▼12
Oct▲17▼14
Nov▲21▼10
Dec▲19▼12
Longest Win / Loss Streak
Jan▲5▼4
Feb▲8▼3
Mar▲8▼3
Apr▲4▼3
May▲4▼9
Jun▲4▼6
Jul▲7▼3
Aug▲7▼4
Sep▲7▼3
Oct▲6▼5
Nov▲6▼2
Dec▲5▼3
Best
Jan+16.5%2000
Feb+14.0%2021
Mar+9.6%2011
Apr+12.8%2002
May+17.4%2020
Jun+10.4%1997
Jul+15.5%2018
Aug+18.1%2024
Sep+14.2%2005
Oct+40.1%2001
Nov+8.8%2025
Dec+13.3%1995
Worst
Jan-14.2%2009
Feb-10.2%2009
Mar-29.6%2020
Apr-15.6%2020
May-7.1%2023
Jun-15.4%1999
Jul-11.1%1996
Aug-12.5%1998
Sep-7.3%2020
Oct-16.4%1999
Nov-6.7%2007
Dec-11.3%2023
−29.6%+40.1%
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