Ticker League

Stock Seasonality for DexCom (DXCM)

DexCom (DXCM) historical monthly and quarterly returns. Dividend-adjusted performance data.

DexCom (DXCM) seasonality heatmap

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

2026

Jan+10.0%
Feb+0.5%
Mar-14.5%
Apr-5.2%
May+23.8%
Jun+2.2%
Jul
Aug
Sep
Oct
Nov
Dec

2025

Jan+11.6%
Feb+1.8%
Mar-22.7%
Apr+4.5%
May+20.2%
Jun+1.7%
Jul-7.5%
Aug-6.7%
Sep-10.7%
Oct-13.5%
Nov+9.0%
Dec+4.6%

2024

Jan-2.2%
Feb-5.2%
Mar+20.5%
Apr-8.2%
May-6.8%
Jun-4.5%
Jul-40.2%
Aug+2.2%
Sep-3.3%
Oct+5.1%
Nov+10.7%
Dec-0.3%

2023

Jan-5.4%
Feb+3.7%
Mar+4.7%
Apr+4.4%
May-3.4%
Jun+9.6%
Jul-3.1%
Aug-18.9%
Sep-7.6%
Oct-4.8%
Nov+30.0%
Dec+7.4%

2022

Jan-19.8%
Feb-3.8%
Mar+23.6%
Apr-20.1%
May-27.1%
Jun+0.1%
Jul+10.1%
Aug+0.2%
Sep-2.0%
Oct+50.0%
Nov-3.7%
Dec-2.6%

2021

Jan+1.4%
Feb+6.1%
Mar-9.7%
Apr+7.4%
May-4.3%
Jun+15.6%
Jul+20.7%
Aug+2.7%
Sep+3.3%
Oct+14.0%
Nov-9.7%
Dec-4.6%

2020

Jan+10.1%
Feb+14.6%
Mar-2.4%
Apr+24.5%
May+12.9%
Jun+7.2%
Jul+7.4%
Aug-2.3%
Sep-3.1%
Oct-22.5%
Nov+0.0%
Dec+15.7%

2019

Jan+17.7%
Feb-1.2%
Mar-14.5%
Apr+1.6%
May+0.2%
Jun+23.5%
Jul+4.7%
Aug+9.4%
Sep-13.0%
Oct+3.4%
Nov+47.4%
Dec-3.8%

2018

Jan+1.4%
Feb-3.5%
Mar+32.1%
Apr-1.3%
May+20.2%
Jun+8.0%
Jul+0.1%
Aug+51.8%
Sep-0.9%
Oct-7.2%
Nov-2.4%
Dec-7.6%

2017

Jan+32.6%
Feb-1.3%
Mar+8.4%
Apr-8.0%
May-14.3%
Jun+9.5%
Jul-9.0%
Aug+12.0%
Sep-34.4%
Oct-8.1%
Nov+30.0%
Dec-1.8%

2016

Jan-13.0%
Feb-8.8%
Mar+4.4%
Apr-5.2%
May+0.2%
Jun+23.0%
Jul+16.3%
Aug-1.3%
Sep-3.7%
Oct-10.8%
Nov-16.6%
Dec-8.5%

2015

Jan+8.6%
Feb+1.6%
Mar+2.6%
Apr+8.3%
May+6.2%
Jun+11.5%
Jul+5.8%
Aug+11.2%
Sep-8.8%
Oct-3.0%
Nov+2.0%
Dec-3.6%

2014

Jan+14.4%
Feb+11.5%
Mar-8.3%
Apr-21.6%
May+4.1%
Jun+17.4%
Jul-4.9%
Aug+17.3%
Sep-9.5%
Oct+12.4%
Nov+14.5%
Dec+6.9%

2013

Jan+12.1%
Feb-2.1%
Mar+12.1%
Apr-1.9%
May+27.1%
Jun+7.7%
Jul-2.9%
Aug+24.0%
Sep+4.4%
Oct+1.7%
Nov+15.2%
Dec+7.0%

2012

Jan+17.6%
Feb-1.5%
Mar-3.3%
Apr-6.5%
May+10.2%
Jun+20.4%
Jul-15.1%
Aug+21.1%
Sep+12.9%
Oct-12.8%
Nov-0.3%
Dec+4.0%

2011

Jan+3.5%
Feb+3.7%
Mar+6.0%
Apr+7.2%
May-5.3%
Jun-8.1%
Jul-1.9%
Aug-15.2%
Sep-0.3%
Oct-18.3%
Nov-18.0%
Dec+15.9%

2010

Jan+12.4%
Feb-0.4%
Mar+8.0%
Apr+12.3%
May-4.0%
Jun+9.9%
Jul-3.5%
Aug+9.7%
Sep+8.2%
Oct+4.2%
Nov-18.3%
Dec+20.9%

2009

Jan+17.0%
Feb+25.1%
Mar+2.0%
Apr+8.7%
May+24.1%
Jun+11.5%
Jul+4.5%
Aug+20.4%
Sep+1.5%
Oct-13.1%
Nov+5.2%
Dec+11.6%

2008

Jan-5.0%
Feb-12.4%
Mar-44.0%
Apr+87.4%
May+2.1%
Jun-23.4%
Jul+11.3%
Aug+2.4%
Sep-9.9%
Oct-27.1%
Nov-55.8%
Dec+38.0%

2007

Jan-9.7%
Feb-9.4%
Mar-2.5%
Apr+1.0%
May-17.6%
Jun+25.0%
Jul-2.0%
Aug+14.4%
Sep+8.7%
Oct-6.8%
Nov-7.3%
Dec+2.3%

2006

Jan+27.3%
Feb-8.2%
Mar+16.3%
Apr+24.1%
May-22.6%
Jun-30.2%
Jul-12.6%
Aug+8.1%
Sep-13.4%
Oct-20.9%
Nov+28.2%
Dec-12.4%

2005

Jan
Feb
Mar
Apr
May+40.0%
Jun-11.4%
Jul-11.0%
Aug+12.7%
Sep-6.4%
Oct+11.7%
Nov+8.0%
Dec+6.3%

Avg

Jan+6.8%
Feb+0.5%
Mar+0.9%
Apr+5.4%
May+3.9%
Jun+5.9%
Jul-1.6%
Aug+8.3%
Sep-4.2%
Oct-3.2%
Nov+3.3%
Dec+4.5%

Median

Jan+10.0%
Feb-1.2%
Mar+2.6%
Apr+1.6%
May+1.1%
Jun+9.5%
Jul-2.0%
Aug+9.4%
Sep-3.3%
Oct-6.8%
Nov+2.0%
Dec+4.0%

Last 5Y Avg

Jan-1.2%
Feb-0.6%
Mar+2.3%
Apr-4.9%
May+1.4%
Jun+4.5%
Jul-4.0%
Aug-4.1%
Sep-4.1%
Oct+10.2%
Nov+7.3%
Dec+0.9%

Std Dev (σ)

Jan13.0%
Feb8.6%
Mar16.9%
Apr22.1%
May17.1%
Jun14.7%
Jul12.9%
Aug15.0%
Sep10.1%
Oct16.8%
Nov21.9%
Dec11.5%

Consistency (μ/σ)

Jan0.52
Feb0.06
Mar0.05
Apr0.24
May0.23
Jun0.40
Jul-0.12
Aug0.56
Sep-0.42
Oct-0.19
Nov0.15
Dec0.39

Win Rate (%)

Jan71%
Feb43%
Mar57%
Apr57%
May59%
Jun76%
Jul43%
Aug76%
Sep29%
Oct38%
Nov57%
Dec57%

Winning / Losing Months

Jan156
Feb912
Mar129
Apr129
May139
Jun165
Jul912
Aug165
Sep615
Oct813
Nov129
Dec129

Longest Win / Loss Streak

Jan73
Feb24
Mar43
Apr63
May54
Jun122
Jul55
Aug61
Sep27
Oct24
Nov33
Dec85

Best

Jan+32.6%2017
Feb+25.1%2009
Mar+32.1%2018
Apr+87.4%2008
May+40.0%2005
Jun+25.0%2007
Jul+20.7%2021
Aug+51.8%2018
Sep+12.9%2012
Oct+50.0%2022
Nov+47.4%2019
Dec+38.0%2008

Worst

Jan-19.8%2022
Feb-12.4%2008
Mar-44.0%2008
Apr-21.6%2014
May-27.1%2022
Jun-30.2%2006
Jul-40.2%2024
Aug-18.9%2023
Sep-34.4%2017
Oct-27.1%2008
Nov-55.8%2008
Dec-12.4%2006
−55.8%+87.4%

Frequently asked questions

Data & methodology