DexCom (DXCM) Historical Monthly & Quarterly Returns
Dividend-adjusted returns by month and quarter. Compare performance across years.
DexCom
DXCM
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +10.0% | +0.5% | 14.5% | 8.3% | — | — | — | — | — | — | — | — |
| 2025 | +11.6% | +1.8% | 22.7% | +4.5% | +20.2% | +1.7% | 7.5% | 6.7% | 10.7% | 13.5% | +9.0% | +4.6% |
| 2024 | 2.2% | 5.2% | +20.5% | 8.2% | 6.8% | 4.5% | 40.2% | +2.2% | 3.3% | +5.1% | +10.7% | 0.3% |
| 2023 | 5.4% | +3.7% | +4.7% | +4.4% | 3.4% | +9.6% | 3.1% | 18.9% | 7.6% | 4.8% | +30.0% | +7.4% |
| 2022 | 19.8% | 3.8% | +23.6% | 20.1% | 27.1% | +0.1% | +10.1% | +0.2% | 2.0% | +50.0% | 3.7% | 2.6% |
| 2021 | +1.4% | +6.1% | 9.7% | +7.4% | 4.3% | +15.6% | +20.7% | +2.7% | +3.3% | +14.0% | 9.7% | 4.6% |
| 2020 | +10.1% | +14.6% | 2.4% | +24.5% | +12.9% | +7.2% | +7.4% | 2.3% | 3.1% | 22.5% | +0.0% | +15.7% |
| 2019 | +17.7% | 1.2% | 14.5% | +1.6% | +0.2% | +23.5% | +4.7% | +9.4% | 13.0% | +3.4% | +47.4% | 3.8% |
| 2018 | +1.4% | 3.5% | +32.1% | 1.3% | +20.2% | +8.0% | +0.1% | +51.8% | 0.9% | 7.2% | 2.4% | 7.6% |
| 2017 | +32.6% | 1.3% | +8.4% | 8.0% | 14.3% | +9.5% | 9.0% | +12.0% | 34.4% | 8.1% | +30.0% | 1.8% |
| 2016 | 13.0% | 8.8% | +4.4% | 5.2% | +0.2% | +23.0% | +16.3% | 1.3% | 3.7% | 10.8% | 16.6% | 8.5% |
| 2015 | +8.6% | +1.6% | +2.6% | +8.3% | +6.2% | +11.5% | +5.8% | +11.2% | 8.8% | 3.0% | +2.0% | 3.6% |
| 2014 | +14.4% | +11.5% | 8.3% | 21.6% | +4.1% | +17.4% | 4.9% | +17.3% | 9.5% | +12.4% | +14.5% | +6.9% |
| 2013 | +12.1% | 2.1% | +12.1% | 1.9% | +27.1% | +7.7% | 2.9% | +24.0% | +4.4% | +1.7% | +15.2% | +7.0% |
| 2012 | +17.6% | 1.5% | 3.3% | 6.5% | +10.2% | +20.4% | 15.1% | +21.1% | +12.9% | 12.8% | 0.3% | +4.0% |
| 2011 | +3.5% | +3.7% | +6.0% | +7.2% | 5.3% | 8.1% | 1.9% | 15.2% | 0.3% | 18.3% | 18.0% | +15.9% |
| 2010 | +12.4% | 0.4% | +8.0% | +12.3% | 4.0% | +9.9% | 3.5% | +9.7% | +8.2% | +4.2% | 18.3% | +20.9% |
| 2009 | +17.0% | +25.1% | +2.0% | +8.7% | +24.1% | +11.5% | +4.5% | +20.4% | +1.5% | 13.1% | +5.2% | +11.6% |
| 2008 | 5.0% | 12.4% | 44.0% | +87.4% | +2.1% | 23.4% | +11.3% | +2.4% | 9.9% | 27.1% | 55.8% | +38.0% |
| 2007 | 9.7% | 9.4% | 2.5% | +1.0% | 17.6% | +25.0% | 2.0% | +14.4% | +8.7% | 6.8% | 7.3% | +2.3% |
| 2006 | +27.3% | 8.2% | +16.3% | +24.1% | 22.6% | 30.2% | 12.6% | +8.1% | 13.4% | 20.9% | +28.2% | 12.4% |
| 2005 | — | — | — | 15.0% | +40.0% | 11.4% | 11.0% | +12.7% | 6.4% | +11.7% | +8.0% | +6.3% |
| Avg | +6.8% | +0.5% | +0.9% | +4.3% | +3.0% | +5.9% | 1.6% | +8.3% | 4.2% | 3.2% | +3.3% | +4.5% |
| Median | +10.0% | 1.2% | +2.6% | +1.3% | +0.2% | +9.5% | 2.0% | +9.4% | 3.3% | 6.8% | +2.0% | +4.0% |
| Win % | 71% | 43% | 57% | 55% | 57% | 76% | 43% | 76% | 29% | 38% | 57% | 57% |
2026
Jan+10.0%
Feb+0.5%
Mar14.5%
Apr8.3%
May—
Jun—
Jul—
Aug—
Sep—
Oct—
Nov—
Dec—
2025
Jan+11.6%
Feb+1.8%
Mar22.7%
Apr+4.5%
May+20.2%
Jun+1.7%
Jul7.5%
Aug6.7%
Sep10.7%
Oct13.5%
Nov+9.0%
Dec+4.6%
2024
Jan2.2%
Feb5.2%
Mar+20.5%
Apr8.2%
May6.8%
Jun4.5%
Jul40.2%
Aug+2.2%
Sep3.3%
Oct+5.1%
Nov+10.7%
Dec0.3%
2023
Jan5.4%
Feb+3.7%
Mar+4.7%
Apr+4.4%
May3.4%
Jun+9.6%
Jul3.1%
Aug18.9%
Sep7.6%
Oct4.8%
Nov+30.0%
Dec+7.4%
2022
Jan19.8%
Feb3.8%
Mar+23.6%
Apr20.1%
May27.1%
Jun+0.1%
Jul+10.1%
Aug+0.2%
Sep2.0%
Oct+50.0%
Nov3.7%
Dec2.6%
2021
Jan+1.4%
Feb+6.1%
Mar9.7%
Apr+7.4%
May4.3%
Jun+15.6%
Jul+20.7%
Aug+2.7%
Sep+3.3%
Oct+14.0%
Nov9.7%
Dec4.6%
2020
Jan+10.1%
Feb+14.6%
Mar2.4%
Apr+24.5%
May+12.9%
Jun+7.2%
Jul+7.4%
Aug2.3%
Sep3.1%
Oct22.5%
Nov+0.0%
Dec+15.7%
2019
Jan+17.7%
Feb1.2%
Mar14.5%
Apr+1.6%
May+0.2%
Jun+23.5%
Jul+4.7%
Aug+9.4%
Sep13.0%
Oct+3.4%
Nov+47.4%
Dec3.8%
2018
Jan+1.4%
Feb3.5%
Mar+32.1%
Apr1.3%
May+20.2%
Jun+8.0%
Jul+0.1%
Aug+51.8%
Sep0.9%
Oct7.2%
Nov2.4%
Dec7.6%
2017
Jan+32.6%
Feb1.3%
Mar+8.4%
Apr8.0%
May14.3%
Jun+9.5%
Jul9.0%
Aug+12.0%
Sep34.4%
Oct8.1%
Nov+30.0%
Dec1.8%
2016
Jan13.0%
Feb8.8%
Mar+4.4%
Apr5.2%
May+0.2%
Jun+23.0%
Jul+16.3%
Aug1.3%
Sep3.7%
Oct10.8%
Nov16.6%
Dec8.5%
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%
Sep8.8%
Oct3.0%
Nov+2.0%
Dec3.6%
2014
Jan+14.4%
Feb+11.5%
Mar8.3%
Apr21.6%
May+4.1%
Jun+17.4%
Jul4.9%
Aug+17.3%
Sep9.5%
Oct+12.4%
Nov+14.5%
Dec+6.9%
2013
Jan+12.1%
Feb2.1%
Mar+12.1%
Apr1.9%
May+27.1%
Jun+7.7%
Jul2.9%
Aug+24.0%
Sep+4.4%
Oct+1.7%
Nov+15.2%
Dec+7.0%
2012
Jan+17.6%
Feb1.5%
Mar3.3%
Apr6.5%
May+10.2%
Jun+20.4%
Jul15.1%
Aug+21.1%
Sep+12.9%
Oct12.8%
Nov0.3%
Dec+4.0%
2011
Jan+3.5%
Feb+3.7%
Mar+6.0%
Apr+7.2%
May5.3%
Jun8.1%
Jul1.9%
Aug15.2%
Sep0.3%
Oct18.3%
Nov18.0%
Dec+15.9%
2010
Jan+12.4%
Feb0.4%
Mar+8.0%
Apr+12.3%
May4.0%
Jun+9.9%
Jul3.5%
Aug+9.7%
Sep+8.2%
Oct+4.2%
Nov18.3%
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%
Oct13.1%
Nov+5.2%
Dec+11.6%
2008
Jan5.0%
Feb12.4%
Mar44.0%
Apr+87.4%
May+2.1%
Jun23.4%
Jul+11.3%
Aug+2.4%
Sep9.9%
Oct27.1%
Nov55.8%
Dec+38.0%
2007
Jan9.7%
Feb9.4%
Mar2.5%
Apr+1.0%
May17.6%
Jun+25.0%
Jul2.0%
Aug+14.4%
Sep+8.7%
Oct6.8%
Nov7.3%
Dec+2.3%
2006
Jan+27.3%
Feb8.2%
Mar+16.3%
Apr+24.1%
May22.6%
Jun30.2%
Jul12.6%
Aug+8.1%
Sep13.4%
Oct20.9%
Nov+28.2%
Dec12.4%
2005
Jan—
Feb—
Mar—
Apr15.0%
May+40.0%
Jun11.4%
Jul11.0%
Aug+12.7%
Sep6.4%
Oct+11.7%
Nov+8.0%
Dec+6.3%
Avg
Jan+6.8%
Feb+0.5%
Mar+0.9%
Apr+4.3%
May+3.0%
Jun+5.9%
Jul1.6%
Aug+8.3%
Sep4.2%
Oct3.2%
Nov+3.3%
Dec+4.5%
Median
Jan+10.0%
Feb1.2%
Mar+2.6%
Apr+1.3%
May+0.2%
Jun+9.5%
Jul2.0%
Aug+9.4%
Sep3.3%
Oct6.8%
Nov+2.0%
Dec+4.0%
Win %
Jan71%
Feb43%
Mar57%
Apr55%
May57%
Jun76%
Jul43%
Aug76%
Sep29%
Oct38%
Nov57%
Dec57%
Frequently asked questions
What is the best performing month for DexCom (DXCM) stock?
- Historically, August is the best performing month for DexCom (DXCM) stock with an average return of +8.34%.
What is the worst performing month for DexCom (DXCM) stock?
- Historically, September is the worst performing month for DexCom (DXCM) stock with an average return of 4.20%.
What is the best performing quarter for DexCom (DXCM) stock?
- Historically, Q2 is the best performing quarter for DexCom (DXCM) stock with an average return of +12.02%.
What is the worst performing quarter for DexCom (DXCM) stock?
- Historically, Q3 is the worst performing quarter for DexCom (DXCM) stock with an average return of +2.37%.
What is the best performing year for DexCom (DXCM) stock?
- Historically, 2009 is the best performing year for DexCom (DXCM) stock with a return of +192.75%.
What is the worst performing year for DexCom (DXCM) stock?
- Historically, 2008 is the worst performing year for DexCom (DXCM) stock with a return of 68.78%.
Which month has the highest win rate for DexCom (DXCM) stock?
- Historically, June has the highest win rate for DexCom (DXCM) stock — positive in 76% of years.
Which month has the lowest win rate for DexCom (DXCM) stock?
- Historically, September has the lowest win rate for DexCom (DXCM) stock — positive in 29% of years.
Which quarter has the highest win rate for DexCom (DXCM) stock?
- Historically, Q2 has the highest win rate for DexCom (DXCM) stock — positive in 68% of years.
Which quarter has the lowest win rate for DexCom (DXCM) stock?
- Historically, Q4 has the lowest win rate for DexCom (DXCM) stock — positive in 48% of years.
Data & methodology
How are returns calculated?
- We compare the closing price at the end of each period (month or quarter) with the closing price at the end of the previous period. The return is the percentage change. All prices are adjusted for dividends and stock splits. Based on historical prices from our data provider.
What is average vs median?
- Average is the arithmetic mean of returns for each period across years. Median is the middle value. Both exclude empty cells. Use median to reduce impact of outliers.
What does the heatmap show?
- Green cells indicate positive returns, red cells indicate negative returns. The darker the color, the stronger the move. Average and Median rows summarize each column across years.
What is Win %?
- Percentage of years when the period had a positive return. For example, 80% for January means January was positive in 80% of the years in the selected range.
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