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Stock Seasonality for IDEXX Laboratories (IDXX)

IDEXX Laboratories (IDXX) historical monthly and quarterly returns. Dividend-adjusted performance data.

IDEXX Laboratories (IDXX) seasonality heatmap

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

2026

Jan-0.9%
Feb-2.0%
Mar-14.4%
Apr-0.2%
May+0.5%
Jun-0.5%
Jul
Aug
Sep
Oct
Nov
Dec

2025

Jan+2.1%
Feb+3.6%
Mar-3.9%
Apr+3.0%
May+18.7%
Jun+4.5%
Jul-0.4%
Aug+21.1%
Sep-1.3%
Oct-1.5%
Nov+19.6%
Dec-10.1%

2024

Jan-7.2%
Feb+11.7%
Mar-6.1%
Apr-8.7%
May+0.9%
Jun-2.0%
Jul-2.3%
Aug+1.1%
Sep+5.0%
Oct-19.5%
Nov+3.6%
Dec-2.0%

2023

Jan+17.8%
Feb-1.5%
Mar+5.7%
Apr-1.6%
May-5.6%
Jun+8.1%
Jul+10.5%
Aug-7.8%
Sep-14.5%
Oct-8.6%
Nov+16.6%
Dec+19.2%

2022

Jan-23.0%
Feb+4.9%
Mar+2.8%
Apr-21.3%
May-9.0%
Jun-10.4%
Jul+13.8%
Aug-12.9%
Sep-6.3%
Oct+10.4%
Nov+18.4%
Dec-4.2%

2021

Jan-4.2%
Feb+8.7%
Mar-5.9%
Apr+12.2%
May+1.7%
Jun+13.2%
Jul+7.4%
Aug-0.7%
Sep-7.7%
Oct+7.1%
Nov-8.7%
Dec+8.3%

2020

Jan+3.8%
Feb-6.1%
Mar-4.8%
Apr+14.6%
May+11.3%
Jun+6.9%
Jul+20.5%
Aug-1.7%
Sep+0.5%
Oct+8.1%
Nov+8.5%
Dec+8.4%

2019

Jan+14.4%
Feb-0.8%
Mar+6.0%
Apr+3.8%
May+7.7%
Jun+10.2%
Jul+2.4%
Aug+2.7%
Sep-6.1%
Oct+4.8%
Nov-11.7%
Dec+3.8%

2018

Jan+19.6%
Feb+0.1%
Mar+2.2%
Apr+1.6%
May+7.1%
Jun+4.7%
Jul+12.4%
Aug+3.7%
Sep-1.7%
Oct-15.0%
Nov-3.9%
Dec-8.7%

2017

Jan+4.3%
Feb+18.5%
Mar+6.7%
Apr+8.5%
May+0.4%
Jun-4.1%
Jul+3.1%
Aug-6.6%
Sep+0.0%
Oct+6.9%
Nov-5.9%
Dec-0.0%

2016

Jan-3.8%
Feb+4.3%
Mar+7.1%
Apr+7.7%
May+3.8%
Jun+6.0%
Jul+1.0%
Aug+20.1%
Sep+0.0%
Oct-5.0%
Nov+9.8%
Dec-0.3%

2015

Jan+6.8%
Feb-1.0%
Mar-1.5%
Apr-18.8%
May+8.2%
Jun-5.4%
Jul+13.4%
Aug-1.7%
Sep+3.9%
Oct-7.6%
Nov+3.2%
Dec+3.0%

2014

Jan+7.4%
Feb+10.2%
Mar-3.6%
Apr+4.2%
May+1.6%
Jun+4.0%
Jul-6.8%
Aug-0.4%
Sep-5.0%
Oct+20.2%
Nov+5.4%
Dec-0.7%

2013

Jan+2.6%
Feb-3.3%
Mar+0.3%
Apr-4.8%
May-6.3%
Jun+8.8%
Jul+9.3%
Aug-4.3%
Sep+6.2%
Oct+8.2%
Nov-3.4%
Dec+2.1%

2012

Jan+9.9%
Feb+1.4%
Mar+2.0%
Apr+0.5%
May-3.5%
Jun+13.3%
Jul-8.3%
Aug+7.8%
Sep+4.5%
Oct-3.2%
Nov-2.8%
Dec-0.7%

2011

Jan+3.6%
Feb+8.4%
Mar-0.6%
Apr+5.5%
May-3.3%
Jun-1.5%
Jul+6.9%
Aug-3.8%
Sep-13.5%
Oct+4.3%
Nov+4.5%
Dec+2.3%

2010

Jan-1.8%
Feb+0.6%
Mar+9.0%
Apr+14.9%
May-4.4%
Jun-3.7%
Jul-3.5%
Aug-5.9%
Sep+11.6%
Oct-2.9%
Nov+7.1%
Dec+7.8%

2009

Jan-9.1%
Feb-8.2%
Mar+14.9%
Apr+13.6%
May+6.9%
Jun+10.0%
Jul+7.8%
Aug+1.9%
Sep-1.5%
Oct+2.2%
Nov-2.1%
Dec+6.8%

2008

Jan-3.9%
Feb-1.6%
Mar-11.2%
Apr+8.0%
May-5.1%
Jun-3.5%
Jul+9.8%
Aug+5.2%
Sep-2.7%
Oct-35.8%
Nov-12.2%
Dec+16.7%

2007

Jan+8.2%
Feb+0.5%
Mar+1.7%
Apr+2.9%
May-2.1%
Jun+7.2%
Jul+6.0%
Aug+11.4%
Sep-1.9%
Oct+11.1%
Nov-0.7%
Dec-3.1%

2006

Jan+6.7%
Feb+2.3%
Mar+9.9%
Apr-3.7%
May-8.1%
Jun-1.7%
Jul+17.8%
Aug+3.9%
Sep-0.9%
Oct-8.7%
Nov+1.7%
Dec-6.3%

2005

Jan+6.2%
Feb-4.4%
Mar-2.3%
Apr+4.8%
May+1.7%
Jun+8.0%
Jul+1.9%
Aug+0.9%
Sep+4.4%
Oct+4.8%
Nov+2.1%
Dec+0.6%

2004

Jan+5.9%
Feb+4.2%
Mar+11.4%
Apr+7.7%
May+7.2%
Jun-4.2%
Jul-19.9%
Aug-3.3%
Sep+4.2%
Oct-1.8%
Nov+3.5%
Dec+5.8%

2003

Jan+5.4%
Feb+5.4%
Mar-4.2%
Apr+11.6%
May-8.6%
Jun-6.5%
Jul+21.5%
Aug+2.6%
Sep+2.5%
Oct+11.2%
Nov+0.1%
Dec-2.3%

2002

Jan-10.8%
Feb+2.5%
Mar+2.9%
Apr+6.1%
May+11.0%
Jun-18.4%
Jul+13.3%
Aug-0.5%
Sep+6.5%
Oct+11.5%
Nov-9.3%
Dec+4.9%

2001

Jan+0.9%
Feb+6.1%
Mar-7.0%
Apr+23.7%
May+9.7%
Jun+5.0%
Jul-21.9%
Aug-0.8%
Sep-3.5%
Oct+7.9%
Nov+15.1%
Dec-1.7%

2000

Jan-6.5%
Feb+96.0%
Mar-21.1%
Apr+12.5%
May-5.5%
Jun-7.7%
Jul+5.9%
Aug+7.8%
Sep+2.5%
Oct-10.3%
Nov-5.2%
Dec-3.3%

1999

Jan-3.4%
Feb-14.0%
Mar+7.0%
Apr-5.4%
May+12.7%
Jun-8.6%
Jul-15.8%
Aug-13.4%
Sep+1.2%
Oct-12.1%
Nov+22.5%
Dec-13.0%

1998

Jan-14.1%
Feb+14.6%
Mar+14.8%
Apr+22.9%
May+0.5%
Jun+11.9%
Jul-9.5%
Aug-22.2%
Sep+36.3%
Oct-4.5%
Nov+14.0%
Dec+3.5%

1997

Jan-9.8%
Feb+14.8%
Mar-24.9%
Apr-7.1%
May+8.6%
Jun-11.9%
Jul+28.0%
Aug+18.1%
Sep-10.9%
Oct-5.3%
Nov+0.3%
Dec+0.0%

1996

Jan+6.8%
Feb-4.5%
Mar-12.5%
Apr+5.9%
May-2.2%
Jun-9.7%
Jul-1.4%
Aug+0.0%
Sep+16.9%
Oct-13.3%
Nov-10.8%
Dec+2.7%

1995

Jan-1.3%
Feb+7.2%
Mar+8.8%
Apr+3.9%
May+4.5%
Jun+15.7%
Jul+18.2%
Aug+10.2%
Sep+10.2%
Oct+9.2%
Nov+9.2%
Dec+5.8%

1994

Jan-15.1%
Feb+13.6%
Mar-12.0%
Apr+21.9%
May-2.9%
Jun-7.0%
Jul-0.5%
Aug+9.2%
Sep-8.9%
Oct-3.8%
Nov+20.9%
Dec+5.1%

1993

Jan+2.9%
Feb-2.9%
Mar+7.8%
Apr+0.9%
May+10.8%
Jun+0.0%
Jul+13.8%
Aug+0.7%
Sep+8.5%
Oct+3.3%
Nov+3.2%
Dec+22.1%

1992

Jan+12.4%
Feb-22.5%
Mar+5.8%
Apr+3.7%
May+12.9%
Jun-7.3%
Jul+10.7%
Aug-1.5%
Sep+7.2%
Oct+3.8%
Nov+10.6%
Dec+9.3%

1991

Jan
Feb
Mar
Apr
May
Jun
Jul+0.0%
Aug+13.8%
Sep+8.3%
Oct+48.3%
Nov-24.5%
Dec+11.2%

Avg

Jan+0.9%
Feb+4.8%
Mar-0.3%
Apr+4.4%
May+2.3%
Jun+0.7%
Jul+4.7%
Aug+1.6%
Sep+1.5%
Oct+0.7%
Nov+2.8%
Dec+2.7%

Median

Jan+2.6%
Feb+2.3%
Mar+1.7%
Apr+4.2%
May+1.6%
Jun-0.7%
Jul+6.0%
Aug+0.7%
Sep+0.5%
Oct+2.2%
Nov+3.2%
Dec+2.3%

Last 5Y Avg

Jan-2.2%
Feb+3.3%
Mar-3.2%
Apr-5.8%
May+1.1%
Jun+2.7%
Jul+5.8%
Aug+0.2%
Sep-5.0%
Oct-2.4%
Nov+9.9%
Dec+2.2%

Std Dev (σ)

Jan9.3%
Feb17.9%
Mar9.5%
Apr10.0%
May7.2%
Jun8.5%
Jul11.4%
Aug9.1%
Sep9.3%
Oct13.6%
Nov10.7%
Dec7.6%

Consistency (μ/σ)

Jan0.10
Feb0.27
Mar-0.03
Apr0.44
May0.33
Jun0.08
Jul0.41
Aug0.17
Sep0.17
Oct0.05
Nov0.26
Dec0.35

Win Rate (%)

Jan57%
Feb63%
Mar54%
Apr74%
May63%
Jun47%
Jul66%
Aug51%
Sep57%
Oct51%
Nov63%
Dec57%

Winning / Losing Months

Jan2015
Feb2213
Mar1916
Apr269
May2213
Jun1618
Jul2312
Aug1817
Sep2015
Oct1817
Nov2213
Dec2015

Longest Win / Loss Streak

Jan54
Feb52
Mar43
Apr63
May84
Jun43
Jul92
Aug54
Sep44
Oct45
Nov43
Dec63

Best

Jan+19.6%2018
Feb+96.0%2000
Mar+14.9%2009
Apr+23.7%2001
May+18.7%2025
Jun+15.7%1995
Jul+28.0%1997
Aug+21.1%2025
Sep+36.3%1998
Oct+48.3%1991
Nov+22.5%1999
Dec+22.1%1993

Worst

Jan-23.0%2022
Feb-22.5%1992
Mar-24.9%1997
Apr-21.3%2022
May-9.0%2022
Jun-18.4%2002
Jul-21.9%2001
Aug-22.2%1998
Sep-14.5%2023
Oct-35.8%2008
Nov-24.5%1991
Dec-13.0%1999
−35.8%+96.0%

Frequently asked questions

Data & methodology