BlackRock (BLK) 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 | +4.5% | -5.0% | -9.0% | +10.8% | -1.8% | -1.4% | — | — | — | — | — | — |
| 2025 | +4.9% | -9.1% | -2.7% | -3.4% | +7.2% | +7.6% | +5.4% | +1.9% | +3.9% | -7.1% | -3.3% | +2.7% |
| 2024 | -4.6% | +4.8% | +3.4% | -9.5% | +2.3% | +2.7% | +11.3% | +2.9% | +5.9% | +3.3% | +4.3% | +0.7% |
| 2023 | +7.1% | -9.2% | -2.2% | +0.3% | -2.0% | +5.9% | +6.9% | -5.2% | -7.0% | -5.3% | +22.7% | +8.8% |
| 2022 | -10.1% | -9.6% | +3.4% | -18.3% | +7.1% | -8.3% | +9.9% | -0.4% | -16.8% | +17.4% | +10.9% | -0.3% |
| 2021 | -2.8% | -1.0% | +9.2% | +8.7% | +7.0% | +0.2% | -0.9% | +8.8% | -10.7% | +12.5% | -4.1% | +1.7% |
| 2020 | +4.9% | -12.2% | -4.3% | +14.1% | +5.3% | +3.6% | +5.7% | +3.3% | -4.6% | +6.3% | +16.5% | +3.8% |
| 2019 | +5.7% | +6.8% | -2.8% | +13.5% | -14.4% | +13.8% | -0.3% | -9.6% | +6.3% | +3.6% | +7.2% | +2.3% |
| 2018 | +9.4% | -2.2% | -0.9% | -3.7% | +2.4% | -6.1% | +0.7% | -4.7% | -1.0% | -12.7% | +4.0% | -7.5% |
| 2017 | -1.7% | +3.6% | -0.4% | +0.3% | +7.1% | +3.2% | +1.0% | -1.2% | +6.7% | +5.3% | +6.4% | +3.0% |
| 2016 | -7.7% | -0.7% | +9.9% | +4.6% | +2.1% | -5.3% | +6.9% | +2.4% | -2.8% | -5.9% | +8.7% | +3.3% |
| 2015 | -4.8% | +9.1% | -0.9% | -0.5% | +0.5% | -4.8% | -2.8% | -9.4% | -1.7% | +18.3% | +3.3% | -5.8% |
| 2014 | -5.1% | +1.5% | +3.8% | -4.3% | +1.3% | +5.5% | -4.7% | +9.1% | -0.7% | +3.9% | +5.3% | +0.1% |
| 2013 | +14.3% | +1.5% | +7.9% | +3.7% | +4.8% | -7.4% | +9.8% | -7.1% | +4.0% | +11.2% | +1.2% | +4.5% |
| 2012 | +2.1% | +9.3% | +3.8% | -6.5% | -10.8% | +0.3% | +0.3% | +4.5% | +1.1% | +6.4% | +4.7% | +4.9% |
| 2011 | +3.9% | +3.0% | -0.8% | -2.5% | +4.9% | -6.0% | -7.0% | -6.9% | -10.2% | +6.6% | +9.0% | +4.4% |
| 2010 | -7.9% | +2.3% | -0.0% | -15.5% | -8.8% | -14.1% | +9.8% | -9.2% | +19.9% | +0.4% | -4.7% | +17.6% |
| 2009 | -18.9% | -11.0% | +35.4% | +12.7% | +8.9% | +10.5% | +8.6% | +5.1% | +8.6% | -0.2% | +5.3% | +2.3% |
| 2008 | +1.7% | -12.3% | +6.1% | -1.2% | +11.5% | -21.0% | +22.4% | +0.6% | -10.5% | -32.5% | -4.3% | +7.4% |
| 2007 | +10.4% | -5.1% | -1.4% | -4.2% | +2.6% | +2.4% | +1.9% | -2.3% | +11.8% | +19.3% | -3.8% | +9.3% |
| 2006 | +22.4% | +7.0% | -1.2% | +8.2% | -11.6% | +4.2% | -7.2% | +1.1% | +14.5% | +1.2% | -4.7% | +6.0% |
| 2005 | +3.9% | -3.4% | -3.1% | +0.0% | +4.1% | +3.5% | +5.7% | -3.0% | +7.9% | +7.0% | +13.8% | +0.9% |
| 2004 | +9.2% | +2.6% | +3.3% | +1.7% | +1.4% | +1.6% | -2.9% | +18.4% | +0.5% | +0.0% | +1.4% | +4.0% |
| 2003 | +7.2% | -1.5% | +4.6% | +4.4% | -0.2% | -0.8% | +0.3% | +0.7% | +8.2% | +4.8% | -0.8% | +4.7% |
| 2002 | +3.1% | +3.5% | +0.2% | +3.1% | -6.5% | +3.0% | -5.3% | +5.5% | -6.4% | -13.8% | +12.0% | -1.5% |
| 2001 | -4.9% | -1.3% | -8.6% | -6.1% | +7.7% | -5.8% | +16.2% | -4.5% | +16.2% | -2.2% | -10.3% | +7.5% |
| 2000 | +1.9% | +25.0% | -7.5% | +28.4% | -7.4% | +20.5% | +16.4% | +21.5% | -21.9% | +33.2% | +2.3% | -3.7% |
| 1999 | — | — | — | — | — | — | — | — | — | — | +20.5% | -6.5% |
| Avg | +1.8% | -0.1% | +1.7% | +1.4% | +0.9% | +0.3% | +4.2% | +0.9% | +0.8% | +3.1% | +4.6% | +2.8% |
| Median | +3.1% | -0.7% | -0.4% | +0.3% | +2.3% | +2.0% | +3.6% | +0.6% | +0.8% | +3.8% | +4.3% | +3.0% |
| Last 5Y Avg | +0.4% | -5.6% | -1.4% | -4.0% | +2.6% | +1.6% | +6.5% | +1.6% | -4.9% | +4.2% | +6.1% | +2.7% |
| Std Dev (σ) | 8.4% | 8.1% | 8.3% | 9.7% | 6.8% | 8.6% | 7.6% | 7.7% | 10.1% | 12.5% | 8.1% | 5.3% |
| Consistency (μ/σ) | 0.21 | -0.02 | 0.20 | 0.15 | 0.13 | 0.04 | 0.55 | 0.11 | 0.08 | 0.25 | 0.57 | 0.52 |
| Win Rate (%) | 63% | 48% | 44% | 56% | 67% | 62% | 69% | 54% | 54% | 69% | 70% | 78% |
| Winning / Losing Months | ▲17▼10 | ▲13▼14 | ▲12▼15 | ▲15▼12 | ▲18▼9 | ▲16▼10 | ▲18▼8 | ▲14▼12 | ▲14▼12 | ▲18▼8 | ▲19▼8 | ▲21▼6 |
| Longest Win / Loss Streak | ▲7▼4 | ▲6▼4 | ▲3▼4 | ▲5▼3 | ▲6▼2 | ▲4▼2 | ▲4▼2 | ▲3▼3 | ▲5▼4 | ▲6▼2 | ▲10▼3 | ▲12▼2 |
| Best | +22.4%in January 2006 | +25.0%in February 2000 | +35.4%in March 2009 | +28.4%in April 2000 | +11.5%in May 2008 | +20.5%in June 2000 | +22.4%in July 2008 | +21.5%in August 2000 | +19.9%in September 2010 | +33.2%in October 2000 | +22.7%in November 2023 | +17.6%in December 2010 |
| Worst | -18.9%in January 2009 | -12.3%in February 2008 | -9.0%in March 2026 | -18.3%in April 2022 | -14.4%in May 2019 | -21.0%in June 2008 | -7.2%in July 2006 | -9.6%in August 2019 | -21.9%in September 2000 | -32.5%in October 2008 | -10.3%in November 2001 | -7.5%in December 2018 |
−32.5%+35.4%
2026
Jan+4.5%
Feb-5.0%
Mar-9.0%
Apr+10.8%
May-1.8%
Jun-1.4%
Jul—
Aug—
Sep—
Oct—
Nov—
Dec—
2025
Jan+4.9%
Feb-9.1%
Mar-2.7%
Apr-3.4%
May+7.2%
Jun+7.6%
Jul+5.4%
Aug+1.9%
Sep+3.9%
Oct-7.1%
Nov-3.3%
Dec+2.7%
2024
Jan-4.6%
Feb+4.8%
Mar+3.4%
Apr-9.5%
May+2.3%
Jun+2.7%
Jul+11.3%
Aug+2.9%
Sep+5.9%
Oct+3.3%
Nov+4.3%
Dec+0.7%
2023
Jan+7.1%
Feb-9.2%
Mar-2.2%
Apr+0.3%
May-2.0%
Jun+5.9%
Jul+6.9%
Aug-5.2%
Sep-7.0%
Oct-5.3%
Nov+22.7%
Dec+8.8%
2022
Jan-10.1%
Feb-9.6%
Mar+3.4%
Apr-18.3%
May+7.1%
Jun-8.3%
Jul+9.9%
Aug-0.4%
Sep-16.8%
Oct+17.4%
Nov+10.9%
Dec-0.3%
2021
Jan-2.8%
Feb-1.0%
Mar+9.2%
Apr+8.7%
May+7.0%
Jun+0.2%
Jul-0.9%
Aug+8.8%
Sep-10.7%
Oct+12.5%
Nov-4.1%
Dec+1.7%
2020
Jan+4.9%
Feb-12.2%
Mar-4.3%
Apr+14.1%
May+5.3%
Jun+3.6%
Jul+5.7%
Aug+3.3%
Sep-4.6%
Oct+6.3%
Nov+16.5%
Dec+3.8%
2019
Jan+5.7%
Feb+6.8%
Mar-2.8%
Apr+13.5%
May-14.4%
Jun+13.8%
Jul-0.3%
Aug-9.6%
Sep+6.3%
Oct+3.6%
Nov+7.2%
Dec+2.3%
2018
Jan+9.4%
Feb-2.2%
Mar-0.9%
Apr-3.7%
May+2.4%
Jun-6.1%
Jul+0.7%
Aug-4.7%
Sep-1.0%
Oct-12.7%
Nov+4.0%
Dec-7.5%
2017
Jan-1.7%
Feb+3.6%
Mar-0.4%
Apr+0.3%
May+7.1%
Jun+3.2%
Jul+1.0%
Aug-1.2%
Sep+6.7%
Oct+5.3%
Nov+6.4%
Dec+3.0%
2016
Jan-7.7%
Feb-0.7%
Mar+9.9%
Apr+4.6%
May+2.1%
Jun-5.3%
Jul+6.9%
Aug+2.4%
Sep-2.8%
Oct-5.9%
Nov+8.7%
Dec+3.3%
2015
Jan-4.8%
Feb+9.1%
Mar-0.9%
Apr-0.5%
May+0.5%
Jun-4.8%
Jul-2.8%
Aug-9.4%
Sep-1.7%
Oct+18.3%
Nov+3.3%
Dec-5.8%
2014
Jan-5.1%
Feb+1.5%
Mar+3.8%
Apr-4.3%
May+1.3%
Jun+5.5%
Jul-4.7%
Aug+9.1%
Sep-0.7%
Oct+3.9%
Nov+5.3%
Dec+0.1%
2013
Jan+14.3%
Feb+1.5%
Mar+7.9%
Apr+3.7%
May+4.8%
Jun-7.4%
Jul+9.8%
Aug-7.1%
Sep+4.0%
Oct+11.2%
Nov+1.2%
Dec+4.5%
2012
Jan+2.1%
Feb+9.3%
Mar+3.8%
Apr-6.5%
May-10.8%
Jun+0.3%
Jul+0.3%
Aug+4.5%
Sep+1.1%
Oct+6.4%
Nov+4.7%
Dec+4.9%
2011
Jan+3.9%
Feb+3.0%
Mar-0.8%
Apr-2.5%
May+4.9%
Jun-6.0%
Jul-7.0%
Aug-6.9%
Sep-10.2%
Oct+6.6%
Nov+9.0%
Dec+4.4%
2010
Jan-7.9%
Feb+2.3%
Mar-0.0%
Apr-15.5%
May-8.8%
Jun-14.1%
Jul+9.8%
Aug-9.2%
Sep+19.9%
Oct+0.4%
Nov-4.7%
Dec+17.6%
2009
Jan-18.9%
Feb-11.0%
Mar+35.4%
Apr+12.7%
May+8.9%
Jun+10.5%
Jul+8.6%
Aug+5.1%
Sep+8.6%
Oct-0.2%
Nov+5.3%
Dec+2.3%
2008
Jan+1.7%
Feb-12.3%
Mar+6.1%
Apr-1.2%
May+11.5%
Jun-21.0%
Jul+22.4%
Aug+0.6%
Sep-10.5%
Oct-32.5%
Nov-4.3%
Dec+7.4%
2007
Jan+10.4%
Feb-5.1%
Mar-1.4%
Apr-4.2%
May+2.6%
Jun+2.4%
Jul+1.9%
Aug-2.3%
Sep+11.8%
Oct+19.3%
Nov-3.8%
Dec+9.3%
2006
Jan+22.4%
Feb+7.0%
Mar-1.2%
Apr+8.2%
May-11.6%
Jun+4.2%
Jul-7.2%
Aug+1.1%
Sep+14.5%
Oct+1.2%
Nov-4.7%
Dec+6.0%
2005
Jan+3.9%
Feb-3.4%
Mar-3.1%
Apr+0.0%
May+4.1%
Jun+3.5%
Jul+5.7%
Aug-3.0%
Sep+7.9%
Oct+7.0%
Nov+13.8%
Dec+0.9%
2004
Jan+9.2%
Feb+2.6%
Mar+3.3%
Apr+1.7%
May+1.4%
Jun+1.6%
Jul-2.9%
Aug+18.4%
Sep+0.5%
Oct+0.0%
Nov+1.4%
Dec+4.0%
2003
Jan+7.2%
Feb-1.5%
Mar+4.6%
Apr+4.4%
May-0.2%
Jun-0.8%
Jul+0.3%
Aug+0.7%
Sep+8.2%
Oct+4.8%
Nov-0.8%
Dec+4.7%
2002
Jan+3.1%
Feb+3.5%
Mar+0.2%
Apr+3.1%
May-6.5%
Jun+3.0%
Jul-5.3%
Aug+5.5%
Sep-6.4%
Oct-13.8%
Nov+12.0%
Dec-1.5%
2001
Jan-4.9%
Feb-1.3%
Mar-8.6%
Apr-6.1%
May+7.7%
Jun-5.8%
Jul+16.2%
Aug-4.5%
Sep+16.2%
Oct-2.2%
Nov-10.3%
Dec+7.5%
2000
Jan+1.9%
Feb+25.0%
Mar-7.5%
Apr+28.4%
May-7.4%
Jun+20.5%
Jul+16.4%
Aug+21.5%
Sep-21.9%
Oct+33.2%
Nov+2.3%
Dec-3.7%
1999
Jan—
Feb—
Mar—
Apr—
May—
Jun—
Jul—
Aug—
Sep—
Oct—
Nov+20.5%
Dec-6.5%
Avg
Jan+1.8%
Feb-0.1%
Mar+1.7%
Apr+1.4%
May+0.9%
Jun+0.3%
Jul+4.2%
Aug+0.9%
Sep+0.8%
Oct+3.1%
Nov+4.6%
Dec+2.8%
Median
Jan+3.1%
Feb-0.7%
Mar-0.4%
Apr+0.3%
May+2.3%
Jun+2.0%
Jul+3.6%
Aug+0.6%
Sep+0.8%
Oct+3.8%
Nov+4.3%
Dec+3.0%
Last 5Y Avg
Jan+0.4%
Feb-5.6%
Mar-1.4%
Apr-4.0%
May+2.6%
Jun+1.6%
Jul+6.5%
Aug+1.6%
Sep-4.9%
Oct+4.2%
Nov+6.1%
Dec+2.7%
Std Dev (σ)
Jan8.4%
Feb8.1%
Mar8.3%
Apr9.7%
May6.8%
Jun8.6%
Jul7.6%
Aug7.7%
Sep10.1%
Oct12.5%
Nov8.1%
Dec5.3%
Consistency (μ/σ)
Jan0.21
Feb-0.02
Mar0.20
Apr0.15
May0.13
Jun0.04
Jul0.55
Aug0.11
Sep0.08
Oct0.25
Nov0.57
Dec0.52
Win Rate (%)
Jan63%
Feb48%
Mar44%
Apr56%
May67%
Jun62%
Jul69%
Aug54%
Sep54%
Oct69%
Nov70%
Dec78%
Winning / Losing Months
Jan▲17▼10
Feb▲13▼14
Mar▲12▼15
Apr▲15▼12
May▲18▼9
Jun▲16▼10
Jul▲18▼8
Aug▲14▼12
Sep▲14▼12
Oct▲18▼8
Nov▲19▼8
Dec▲21▼6
Longest Win / Loss Streak
Jan▲7▼4
Feb▲6▼4
Mar▲3▼4
Apr▲5▼3
May▲6▼2
Jun▲4▼2
Jul▲4▼2
Aug▲3▼3
Sep▲5▼4
Oct▲6▼2
Nov▲10▼3
Dec▲12▼2
Best
Jan+22.4%2006
Feb+25.0%2000
Mar+35.4%2009
Apr+28.4%2000
May+11.5%2008
Jun+20.5%2000
Jul+22.4%2008
Aug+21.5%2000
Sep+19.9%2010
Oct+33.2%2000
Nov+22.7%2023
Dec+17.6%2010
Worst
Jan-18.9%2009
Feb-12.3%2008
Mar-9.0%2026
Apr-18.3%2022
May-14.4%2019
Jun-21.0%2008
Jul-7.2%2006
Aug-9.6%2019
Sep-21.9%2000
Oct-32.5%2008
Nov-10.3%2001
Dec-7.5%2018
−32.5%+35.4%
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