Boston Scientific (BSX) 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 | -1.9% | -17.8% | -18.3% | -8.2% | -16.1% | -2.9% | — | — | — | — | — | — |
| 2025 | +14.6% | +1.4% | -2.8% | +2.0% | +2.3% | +2.0% | -2.3% | +0.6% | -7.5% | +3.2% | +0.9% | -6.1% |
| 2024 | +9.4% | +4.7% | +3.4% | +4.9% | +5.1% | +1.9% | -4.1% | +10.7% | +2.5% | +0.3% | +7.9% | -1.5% |
| 2023 | -0.0% | +1.0% | +7.1% | +4.2% | -1.2% | +5.1% | -4.1% | +4.0% | -2.1% | -3.0% | +9.2% | +3.4% |
| 2022 | +1.0% | +3.0% | +0.3% | -4.9% | -2.6% | -9.1% | +10.1% | -1.8% | -3.9% | +11.3% | +5.0% | +2.2% |
| 2021 | -1.4% | +9.4% | -0.3% | +12.8% | -2.4% | +0.5% | +6.6% | -1.0% | -3.9% | -0.6% | -11.7% | +11.6% |
| 2020 | -7.4% | -10.7% | -12.7% | +14.9% | +1.4% | -7.6% | +9.9% | +6.4% | -6.9% | -10.3% | -3.3% | +8.4% |
| 2019 | +8.0% | +5.2% | -4.3% | -3.3% | +3.5% | +11.9% | -1.2% | +0.6% | -4.8% | +2.5% | +3.7% | +4.6% |
| 2018 | +12.8% | -2.5% | +0.2% | +5.1% | +5.8% | +7.6% | +2.8% | +5.8% | +8.3% | -6.1% | +4.2% | -6.2% |
| 2017 | +11.2% | +2.0% | +1.3% | +6.1% | +2.5% | +2.6% | -4.0% | +3.5% | +5.9% | -3.5% | -6.6% | -5.7% |
| 2016 | -4.9% | -3.1% | +10.8% | +16.5% | +3.6% | +2.9% | +3.9% | -1.9% | -0.1% | -7.6% | -7.0% | +5.7% |
| 2015 | +11.8% | +14.1% | +5.0% | +0.4% | +2.5% | -3.1% | -2.0% | -3.5% | -2.0% | +11.4% | +0.0% | +0.9% |
| 2014 | +12.6% | -3.2% | +3.2% | -6.7% | +1.7% | -0.5% | +0.1% | -0.8% | -6.9% | +12.4% | -3.1% | +3.0% |
| 2013 | +30.4% | -1.1% | +5.7% | -4.1% | +23.4% | +0.3% | +17.8% | -3.1% | +11.0% | -0.4% | -0.9% | +3.8% |
| 2012 | +11.6% | +4.4% | -3.9% | +4.7% | -8.3% | -1.2% | -8.8% | +4.4% | +6.3% | -10.5% | +7.8% | +3.4% |
| 2011 | -7.8% | +2.6% | +0.4% | +4.2% | -4.1% | -3.8% | +3.6% | -5.3% | -12.8% | -0.3% | +0.2% | -9.5% |
| 2010 | -4.1% | -10.3% | -6.7% | -4.7% | -12.1% | -4.1% | -3.4% | -7.3% | +18.1% | +4.2% | +0.5% | +17.9% |
| 2009 | +14.6% | -20.9% | +13.2% | +5.8% | +11.8% | +7.9% | +5.9% | +9.4% | -9.9% | -23.3% | +3.1% | +7.5% |
| 2008 | +4.4% | +3.7% | +2.2% | +3.6% | -0.3% | -7.5% | -3.3% | +5.6% | -2.3% | -26.4% | -31.7% | +25.4% |
| 2007 | +7.4% | -11.6% | -10.9% | +6.2% | +1.5% | -2.1% | -14.3% | -2.4% | +8.7% | -0.6% | -8.9% | -7.9% |
| 2006 | -10.7% | +11.7% | -5.6% | +0.8% | -11.0% | -18.6% | +1.0% | +2.5% | -15.2% | +7.6% | -0.4% | +8.4% |
| 2005 | -7.0% | -1.2% | -10.3% | +1.0% | -8.4% | -0.3% | +7.2% | -7.2% | -13.1% | +7.5% | +5.4% | -7.5% |
| 2004 | +11.0% | +0.1% | +3.7% | -2.8% | +7.6% | -3.4% | -10.6% | -6.6% | +11.2% | -11.2% | -1.4% | +2.1% |
| 2003 | -4.8% | +9.1% | -7.7% | +5.6% | +21.0% | +17.3% | +3.5% | -5.0% | +6.2% | +6.1% | +6.0% | +2.4% |
| 2002 | -6.8% | -0.5% | +12.3% | -0.7% | +11.8% | +5.2% | +2.3% | -2.8% | +8.2% | +19.3% | +11.6% | +1.2% |
| 2001 | +22.5% | -1.7% | +22.5% | -21.3% | +9.1% | -1.8% | +6.0% | +6.0% | +7.3% | +10.9% | +17.0% | -9.3% |
| 2000 | -5.1% | -12.0% | +16.8% | +24.3% | -3.3% | -14.4% | -24.5% | +14.5% | -13.3% | -3.0% | -19.2% | +6.2% |
| 1999 | -9.1% | +8.7% | +53.3% | +4.8% | -10.7% | +15.6% | -7.7% | -16.3% | -27.0% | -18.5% | +4.7% | +3.6% |
| 1998 | +10.6% | +17.7% | +13.0% | +7.1% | -12.0% | +12.6% | +7.0% | -9.7% | -25.8% | +6.2% | -9.2% | +8.3% |
| 1997 | +13.7% | -2.9% | -6.8% | -21.9% | +10.6% | +15.1% | +16.8% | -1.7% | -21.7% | -17.5% | -0.7% | +1.5% |
| 1996 | +4.1% | -6.3% | -4.2% | -6.3% | -0.6% | +4.9% | +6.1% | -3.9% | +25.4% | -5.5% | +7.4% | +2.8% |
| 1995 | +6.7% | +16.8% | +13.9% | +10.6% | +5.6% | +10.8% | +14.6% | +8.9% | +9.5% | -3.2% | -3.8% | +21.5% |
| 1994 | +21.7% | +2.6% | -13.6% | +2.7% | +6.3% | -14.4% | +7.9% | +22.0% | -4.6% | +11.1% | -9.3% | +8.5% |
| 1993 | +7.9% | -17.2% | -14.2% | -10.3% | +8.1% | -9.8% | +5.4% | -10.3% | -22.7% | +24.6% | -3.1% | +1.3% |
| 1992 | — | — | — | — | — | -6.1% | +16.8% | -3.2% | -8.3% | +16.9% | -9.6% | +11.3% |
| Avg | +5.2% | -0.1% | +1.9% | +1.6% | +1.5% | +0.5% | +1.9% | +0.3% | -2.5% | +0.1% | -1.0% | +3.6% |
| Median | +7.0% | +0.6% | +0.3% | +3.1% | +2.0% | -0.0% | +3.1% | -1.4% | -3.1% | -0.4% | -0.2% | +3.2% |
| Last 5Y Avg | +4.6% | -1.6% | -2.1% | -0.4% | -2.5% | +0.1% | +1.3% | +2.5% | -3.0% | +2.2% | +2.2% | +1.9% |
| Std Dev (σ) | 10.2% | 9.4% | 13.3% | 9.4% | 9.0% | 8.8% | 9.1% | 7.6% | 12.3% | 11.7% | 9.2% | 8.1% |
| Consistency (μ/σ) | 0.51 | -0.02 | 0.15 | 0.17 | 0.17 | 0.06 | 0.21 | 0.04 | -0.21 | 0.01 | -0.11 | 0.45 |
| Win Rate (%) | 62% | 53% | 56% | 65% | 59% | 50% | 62% | 44% | 38% | 47% | 47% | 76% |
| Winning / Losing Months | ▲21▼13 | ▲18▼16 | ▲19▼15 | ▲22▼12 | ▲20▼14 | ▲17▼17 | ▲21▼13 | ▲15▼19 | ▲13▼21 | ▲16▼18 | ▲16▼18 | ▲26▼8 |
| Longest Win / Loss Streak | ▲6▼2 | ▲5▼3 | ▲6▼3 | ▲5▼2 | ▲8▼3 | ▲5▼5 | ▲7▼3 | ▲4▼4 | ▲4▼5 | ▲3▼3 | ▲4▼5 | ▲9▼2 |
| Best | +30.4%in January 2013 | +17.7%in February 1998 | +53.3%in March 1999 | +24.3%in April 2000 | +23.4%in May 2013 | +17.3%in June 2003 | +17.8%in July 2013 | +22.0%in August 1994 | +25.4%in September 1996 | +24.6%in October 1993 | +17.0%in November 2001 | +25.4%in December 2008 |
| Worst | -10.7%in January 2006 | -20.9%in February 2009 | -18.3%in March 2026 | -21.9%in April 1997 | -16.1%in May 2026 | -18.6%in June 2006 | -24.5%in July 2000 | -16.3%in August 1999 | -27.0%in September 1999 | -26.4%in October 2008 | -31.7%in November 2008 | -9.5%in December 2011 |
−31.7%+53.3%
2026
Jan-1.9%
Feb-17.8%
Mar-18.3%
Apr-8.2%
May-16.1%
Jun-2.9%
Jul—
Aug—
Sep—
Oct—
Nov—
Dec—
2025
Jan+14.6%
Feb+1.4%
Mar-2.8%
Apr+2.0%
May+2.3%
Jun+2.0%
Jul-2.3%
Aug+0.6%
Sep-7.5%
Oct+3.2%
Nov+0.9%
Dec-6.1%
2024
Jan+9.4%
Feb+4.7%
Mar+3.4%
Apr+4.9%
May+5.1%
Jun+1.9%
Jul-4.1%
Aug+10.7%
Sep+2.5%
Oct+0.3%
Nov+7.9%
Dec-1.5%
2023
Jan-0.0%
Feb+1.0%
Mar+7.1%
Apr+4.2%
May-1.2%
Jun+5.1%
Jul-4.1%
Aug+4.0%
Sep-2.1%
Oct-3.0%
Nov+9.2%
Dec+3.4%
2022
Jan+1.0%
Feb+3.0%
Mar+0.3%
Apr-4.9%
May-2.6%
Jun-9.1%
Jul+10.1%
Aug-1.8%
Sep-3.9%
Oct+11.3%
Nov+5.0%
Dec+2.2%
2021
Jan-1.4%
Feb+9.4%
Mar-0.3%
Apr+12.8%
May-2.4%
Jun+0.5%
Jul+6.6%
Aug-1.0%
Sep-3.9%
Oct-0.6%
Nov-11.7%
Dec+11.6%
2020
Jan-7.4%
Feb-10.7%
Mar-12.7%
Apr+14.9%
May+1.4%
Jun-7.6%
Jul+9.9%
Aug+6.4%
Sep-6.9%
Oct-10.3%
Nov-3.3%
Dec+8.4%
2019
Jan+8.0%
Feb+5.2%
Mar-4.3%
Apr-3.3%
May+3.5%
Jun+11.9%
Jul-1.2%
Aug+0.6%
Sep-4.8%
Oct+2.5%
Nov+3.7%
Dec+4.6%
2018
Jan+12.8%
Feb-2.5%
Mar+0.2%
Apr+5.1%
May+5.8%
Jun+7.6%
Jul+2.8%
Aug+5.8%
Sep+8.3%
Oct-6.1%
Nov+4.2%
Dec-6.2%
2017
Jan+11.2%
Feb+2.0%
Mar+1.3%
Apr+6.1%
May+2.5%
Jun+2.6%
Jul-4.0%
Aug+3.5%
Sep+5.9%
Oct-3.5%
Nov-6.6%
Dec-5.7%
2016
Jan-4.9%
Feb-3.1%
Mar+10.8%
Apr+16.5%
May+3.6%
Jun+2.9%
Jul+3.9%
Aug-1.9%
Sep-0.1%
Oct-7.6%
Nov-7.0%
Dec+5.7%
2015
Jan+11.8%
Feb+14.1%
Mar+5.0%
Apr+0.4%
May+2.5%
Jun-3.1%
Jul-2.0%
Aug-3.5%
Sep-2.0%
Oct+11.4%
Nov+0.0%
Dec+0.9%
2014
Jan+12.6%
Feb-3.2%
Mar+3.2%
Apr-6.7%
May+1.7%
Jun-0.5%
Jul+0.1%
Aug-0.8%
Sep-6.9%
Oct+12.4%
Nov-3.1%
Dec+3.0%
2013
Jan+30.4%
Feb-1.1%
Mar+5.7%
Apr-4.1%
May+23.4%
Jun+0.3%
Jul+17.8%
Aug-3.1%
Sep+11.0%
Oct-0.4%
Nov-0.9%
Dec+3.8%
2012
Jan+11.6%
Feb+4.4%
Mar-3.9%
Apr+4.7%
May-8.3%
Jun-1.2%
Jul-8.8%
Aug+4.4%
Sep+6.3%
Oct-10.5%
Nov+7.8%
Dec+3.4%
2011
Jan-7.8%
Feb+2.6%
Mar+0.4%
Apr+4.2%
May-4.1%
Jun-3.8%
Jul+3.6%
Aug-5.3%
Sep-12.8%
Oct-0.3%
Nov+0.2%
Dec-9.5%
2010
Jan-4.1%
Feb-10.3%
Mar-6.7%
Apr-4.7%
May-12.1%
Jun-4.1%
Jul-3.4%
Aug-7.3%
Sep+18.1%
Oct+4.2%
Nov+0.5%
Dec+17.9%
2009
Jan+14.6%
Feb-20.9%
Mar+13.2%
Apr+5.8%
May+11.8%
Jun+7.9%
Jul+5.9%
Aug+9.4%
Sep-9.9%
Oct-23.3%
Nov+3.1%
Dec+7.5%
2008
Jan+4.4%
Feb+3.7%
Mar+2.2%
Apr+3.6%
May-0.3%
Jun-7.5%
Jul-3.3%
Aug+5.6%
Sep-2.3%
Oct-26.4%
Nov-31.7%
Dec+25.4%
2007
Jan+7.4%
Feb-11.6%
Mar-10.9%
Apr+6.2%
May+1.5%
Jun-2.1%
Jul-14.3%
Aug-2.4%
Sep+8.7%
Oct-0.6%
Nov-8.9%
Dec-7.9%
2006
Jan-10.7%
Feb+11.7%
Mar-5.6%
Apr+0.8%
May-11.0%
Jun-18.6%
Jul+1.0%
Aug+2.5%
Sep-15.2%
Oct+7.6%
Nov-0.4%
Dec+8.4%
2005
Jan-7.0%
Feb-1.2%
Mar-10.3%
Apr+1.0%
May-8.4%
Jun-0.3%
Jul+7.2%
Aug-7.2%
Sep-13.1%
Oct+7.5%
Nov+5.4%
Dec-7.5%
2004
Jan+11.0%
Feb+0.1%
Mar+3.7%
Apr-2.8%
May+7.6%
Jun-3.4%
Jul-10.6%
Aug-6.6%
Sep+11.2%
Oct-11.2%
Nov-1.4%
Dec+2.1%
2003
Jan-4.8%
Feb+9.1%
Mar-7.7%
Apr+5.6%
May+21.0%
Jun+17.3%
Jul+3.5%
Aug-5.0%
Sep+6.2%
Oct+6.1%
Nov+6.0%
Dec+2.4%
2002
Jan-6.8%
Feb-0.5%
Mar+12.3%
Apr-0.7%
May+11.8%
Jun+5.2%
Jul+2.3%
Aug-2.8%
Sep+8.2%
Oct+19.3%
Nov+11.6%
Dec+1.2%
2001
Jan+22.5%
Feb-1.7%
Mar+22.5%
Apr-21.3%
May+9.1%
Jun-1.8%
Jul+6.0%
Aug+6.0%
Sep+7.3%
Oct+10.9%
Nov+17.0%
Dec-9.3%
2000
Jan-5.1%
Feb-12.0%
Mar+16.8%
Apr+24.3%
May-3.3%
Jun-14.4%
Jul-24.5%
Aug+14.5%
Sep-13.3%
Oct-3.0%
Nov-19.2%
Dec+6.2%
1999
Jan-9.1%
Feb+8.7%
Mar+53.3%
Apr+4.8%
May-10.7%
Jun+15.6%
Jul-7.7%
Aug-16.3%
Sep-27.0%
Oct-18.5%
Nov+4.7%
Dec+3.6%
1998
Jan+10.6%
Feb+17.7%
Mar+13.0%
Apr+7.1%
May-12.0%
Jun+12.6%
Jul+7.0%
Aug-9.7%
Sep-25.8%
Oct+6.2%
Nov-9.2%
Dec+8.3%
1997
Jan+13.7%
Feb-2.9%
Mar-6.8%
Apr-21.9%
May+10.6%
Jun+15.1%
Jul+16.8%
Aug-1.7%
Sep-21.7%
Oct-17.5%
Nov-0.7%
Dec+1.5%
1996
Jan+4.1%
Feb-6.3%
Mar-4.2%
Apr-6.3%
May-0.6%
Jun+4.9%
Jul+6.1%
Aug-3.9%
Sep+25.4%
Oct-5.5%
Nov+7.4%
Dec+2.8%
1995
Jan+6.7%
Feb+16.8%
Mar+13.9%
Apr+10.6%
May+5.6%
Jun+10.8%
Jul+14.6%
Aug+8.9%
Sep+9.5%
Oct-3.2%
Nov-3.8%
Dec+21.5%
1994
Jan+21.7%
Feb+2.6%
Mar-13.6%
Apr+2.7%
May+6.3%
Jun-14.4%
Jul+7.9%
Aug+22.0%
Sep-4.6%
Oct+11.1%
Nov-9.3%
Dec+8.5%
1993
Jan+7.9%
Feb-17.2%
Mar-14.2%
Apr-10.3%
May+8.1%
Jun-9.8%
Jul+5.4%
Aug-10.3%
Sep-22.7%
Oct+24.6%
Nov-3.1%
Dec+1.3%
1992
Jan—
Feb—
Mar—
Apr—
May—
Jun-6.1%
Jul+16.8%
Aug-3.2%
Sep-8.3%
Oct+16.9%
Nov-9.6%
Dec+11.3%
Avg
Jan+5.2%
Feb-0.1%
Mar+1.9%
Apr+1.6%
May+1.5%
Jun+0.5%
Jul+1.9%
Aug+0.3%
Sep-2.5%
Oct+0.1%
Nov-1.0%
Dec+3.6%
Median
Jan+7.0%
Feb+0.6%
Mar+0.3%
Apr+3.1%
May+2.0%
Jun-0.0%
Jul+3.1%
Aug-1.4%
Sep-3.1%
Oct-0.4%
Nov-0.2%
Dec+3.2%
Last 5Y Avg
Jan+4.6%
Feb-1.6%
Mar-2.1%
Apr-0.4%
May-2.5%
Jun+0.1%
Jul+1.3%
Aug+2.5%
Sep-3.0%
Oct+2.2%
Nov+2.2%
Dec+1.9%
Std Dev (σ)
Jan10.2%
Feb9.4%
Mar13.3%
Apr9.4%
May9.0%
Jun8.8%
Jul9.1%
Aug7.6%
Sep12.3%
Oct11.7%
Nov9.2%
Dec8.1%
Consistency (μ/σ)
Jan0.51
Feb-0.02
Mar0.15
Apr0.17
May0.17
Jun0.06
Jul0.21
Aug0.04
Sep-0.21
Oct0.01
Nov-0.11
Dec0.45
Win Rate (%)
Jan62%
Feb53%
Mar56%
Apr65%
May59%
Jun50%
Jul62%
Aug44%
Sep38%
Oct47%
Nov47%
Dec76%
Winning / Losing Months
Jan▲21▼13
Feb▲18▼16
Mar▲19▼15
Apr▲22▼12
May▲20▼14
Jun▲17▼17
Jul▲21▼13
Aug▲15▼19
Sep▲13▼21
Oct▲16▼18
Nov▲16▼18
Dec▲26▼8
Longest Win / Loss Streak
Jan▲6▼2
Feb▲5▼3
Mar▲6▼3
Apr▲5▼2
May▲8▼3
Jun▲5▼5
Jul▲7▼3
Aug▲4▼4
Sep▲4▼5
Oct▲3▼3
Nov▲4▼5
Dec▲9▼2
Best
Jan+30.4%2013
Feb+17.7%1998
Mar+53.3%1999
Apr+24.3%2000
May+23.4%2013
Jun+17.3%2003
Jul+17.8%2013
Aug+22.0%1994
Sep+25.4%1996
Oct+24.6%1993
Nov+17.0%2001
Dec+25.4%2008
Worst
Jan-10.7%2006
Feb-20.9%2009
Mar-18.3%2026
Apr-21.9%1997
May-16.1%2026
Jun-18.6%2006
Jul-24.5%2000
Aug-16.3%1999
Sep-27.0%1999
Oct-26.4%2008
Nov-31.7%2008
Dec-9.5%2011
−31.7%+53.3%
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