DexCom (DXCM) Market Cap 2005–2026

As of November 13, 2026, DexCom had a market cap of $31.08 billion, which increased by 2.37% compared to the previous trading day. Market capitalization, often referred to as market cap, represents the total value of a company's outstanding shares on the stock market and is a common measure of its overall size and valuation.

Data updated: Nov 13, 2026, 4:00 PM ET

DexCom Inc. (DXCM)

🌍 United States 📈 NASDAQ 🏭 Health Care 🏢 Health Care Equipment & Supplies

Latest Market Cap

$31.08B ▲ 2.37%

Start of 2026

$25.89B ▲ 20.05%

1 Year Ago

$23.29B ▲ 33.45%

All-Time High

$63.122B ▼ 50.76%

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Note: Each point on the chart represents the market capitalization at the end of the trading day.
Source: Data compiled from EDGAR filings, Bloomberg and Yahoo Finance.

📈 DexCom Market Cap History by Year and Month

DexCom Market Cap History by Year and Month
Year / Month	Market Cap	% Change
2026	$31.08B	▲ 20.05%
November 13, 2026	$31.08B	▲ 1.27%
October 30, 2026	$30.69B	▼ 5.77%
September 30, 2026	$32.57B	▼ 5.24%
August 31, 2026	$34.37B	▲ 9.15%
July 31, 2026	$31.49B	▲ 21.16%
June 30, 2026	$25.99B	▼ 8.65%
May 29, 2026	$28.45B	▲ 24.13%
April 30, 2026	$22.92B	▼ 5.17%
March 31, 2026	$24.17B	▼ 14.47%
February 27, 2026	$28.26B	▼ 0.81%
January 30, 2026	$28.49B	▲ 10.04%
2025	$25.89B	▼ 14.79%
December 31, 2025	$25.89B	▲ 4.61%
November 28, 2025	$24.75B	▲ 8.98%
October 31, 2025	$22.71B	▼ 13.94%
September 30, 2025	$26.39B	▼ 10.66%
August 29, 2025	$29.54B	▼ 6.73%
July 31, 2025	$31.67B	▼ 7.48%
June 30, 2025	$34.23B	▲ 1.75%
May 30, 2025	$33.64B	▲ 20.19%
April 30, 2025	$27.99B	▲ 4.52%
March 31, 2025	$26.78B	▼ 22.44%
February 28, 2025	$34.53B	▲ 1.80%
January 31, 2025	$33.92B	▲ 11.63%
2024	$30.385B	▼ 35.84%
December 31, 2024	$30.385B	▼ 0.26%
November 29, 2024	$30.463B	▲ 10.66%
October 31, 2024	$27.529B	▲ 5.13%
September 30, 2024	$26.186B	▼ 5.76%
August 30, 2024	$27.787B	▲ 2.24%
July 31, 2024	$27.178B	▼ 39.72%
June 28, 2024	$45.089B	▼ 4.54%
May 31, 2024	$47.232B	▼ 6.77%
April 30, 2024	$50.66B	▼ 7.77%
March 28, 2024	$54.929B	▲ 23.82%
February 29, 2024	$44.362B	▼ 5.15%
January 31, 2024	$46.768B	▼ 1.25%
2023	$47.361B	▲ 8.28%
December 29, 2023	$47.361B	▲ 7.42%
November 30, 2023	$44.091B	▲ 30.05%
October 31, 2023	$33.904B	▼ 6.31%
September 29, 2023	$36.188B	▼ 7.61%
August 31, 2023	$39.167B	▼ 18.93%
July 31, 2023	$48.313B	▼ 2.63%
June 30, 2023	$49.618B	▲ 9.16%
May 31, 2023	$45.455B	▼ 3.36%
April 28, 2023	$47.036B	▲ 4.45%
March 31, 2023	$45.031B	▲ 4.98%
February 28, 2023	$42.895B	▲ 3.69%
January 31, 2023	$41.369B	▼ 5.42%
2022	$43.74B	▼ 16.02%
December 30, 2022	$43.74B	▼ 2.61%
November 30, 2022	$44.914B	▼ 3.73%
October 31, 2022	$46.652B	▲ 49.99%
September 30, 2022	$31.105B	▼ 2.88%
August 31, 2022	$32.027B	▼ 0.61%
July 29, 2022	$32.223B	▲ 10.12%
June 30, 2022	$29.26B	▲ 0.09%
May 31, 2022	$29.235B	▼ 27.08%
April 29, 2022	$40.092B	▼ 20.12%
March 31, 2022	$50.188B	▲ 24.92%
February 28, 2022	$40.176B	▼ 3.78%
January 31, 2022	$41.757B	▼ 19.83%
2021	$52.084B	▲ 46.59%
December 31, 2021	$52.084B	▼ 4.48%
November 30, 2021	$54.528B	▼ 9.73%
October 29, 2021	$60.403B	▲ 13.99%
September 30, 2021	$52.991B	▲ 3.45%
August 31, 2021	$51.221B	▲ 2.70%
July 30, 2021	$49.876B	▲ 20.78%
June 30, 2021	$41.293B	▲ 15.60%
May 28, 2021	$35.722B	▼ 4.33%
April 30, 2021	$37.338B	▲ 7.44%
March 31, 2021	$34.753B	▼ 9.16%
February 26, 2021	$38.257B	▲ 6.20%
January 29, 2021	$36.023B	▲ 1.39%
2020	$35.53B	▲ 77.33%
December 31, 2020	$35.53B	▲ 15.74%
November 30, 2020	$30.698B	▲ 0.03%
October 30, 2020	$30.688B	▼ 22.45%
September 30, 2020	$39.574B	▼ 2.84%
August 31, 2020	$40.73B	▼ 2.33%
July 31, 2020	$41.7B	▲ 7.82%
June 30, 2020	$38.675B	▲ 8.41%
May 29, 2020	$35.674B	▲ 15.25%
April 30, 2020	$30.954B	▲ 24.55%
March 31, 2020	$24.854B	▼ 1.69%
February 28, 2020	$25.28B	▲ 14.64%
January 31, 2020	$22.053B	▲ 10.06%
2019	$20.037B	▲ 85.83%
December 31, 2019	$20.037B	▼ 3.69%
November 29, 2019	$20.805B	▲ 47.42%
October 31, 2019	$14.113B	▲ 3.35%
September 30, 2019	$13.655B	▼ 12.73%
August 30, 2019	$15.648B	▲ 9.40%
July 31, 2019	$14.304B	▲ 4.85%
June 28, 2019	$13.643B	▲ 23.53%
May 31, 2019	$11.044B	▲ 0.19%
April 30, 2019	$11.023B	▲ 2.84%
March 29, 2019	$10.719B	▼ 14.52%
February 28, 2019	$12.54B	▼ 1.20%
January 31, 2019	$12.693B	▲ 17.72%
2018	$10.782B	▲ 116.19%
December 31, 2018	$10.782B	▼ 6.35%
November 30, 2018	$11.513B	▼ 2.35%
October 31, 2018	$11.79B	▼ 6.71%
September 28, 2018	$12.638B	▼ 0.93%
August 31, 2018	$12.757B	▲ 51.77%
July 31, 2018	$8.405B	▲ 0.46%
June 29, 2018	$8.366B	▲ 7.94%
May 31, 2018	$7.751B	▲ 20.24%
April 30, 2018	$6.446B	▼ 0.09%
March 29, 2018	$6.452B	▲ 32.10%
February 28, 2018	$4.884B	▼ 3.54%
January 31, 2018	$5.063B	▲ 1.53%
2017	$4.987B	▼ 1.17%
December 29, 2017	$4.987B	▼ 1.78%
November 30, 2017	$5.078B	▲ 29.93%
October 31, 2017	$3.908B	▼ 7.72%
September 29, 2017	$4.235B	▼ 34.43%
August 31, 2017	$6.458B	▲ 12.01%
July 31, 2017	$5.766B	▼ 8.88%
June 30, 2017	$6.327B	▲ 9.61%
May 31, 2017	$5.773B	▼ 14.26%
April 28, 2017	$6.733B	▼ 7.92%
March 31, 2017	$7.312B	▲ 10.30%
February 28, 2017	$6.629B	▼ 1.00%
January 31, 2017	$6.696B	▲ 32.70%
2016	$5.046B	▼ 24.59%
December 30, 2016	$5.046B	▼ 8.56%
November 30, 2016	$5.519B	▼ 16.55%
October 31, 2016	$6.613B	▼ 10.72%
September 30, 2016	$7.407B	▼ 3.06%
August 31, 2016	$7.641B	▼ 1.24%
July 29, 2016	$7.736B	▲ 16.38%
June 30, 2016	$6.648B	▲ 23.55%
May 31, 2016	$5.381B	▲ 0.17%
April 29, 2016	$5.371B	▼ 5.16%
March 31, 2016	$5.664B	▲ 6.50%
February 29, 2016	$5.318B	▼ 8.68%
January 29, 2016	$5.824B	▼ 12.97%
2015	$6.691B	▲ 57.24%
December 31, 2015	$6.691B	▼ 3.19%
November 30, 2015	$6.912B	▲ 2.03%
October 30, 2015	$6.774B	▼ 2.96%
September 30, 2015	$6.98B	▼ 7.41%
August 31, 2015	$7.539B	▲ 11.21%
July 31, 2015	$6.779B	▲ 5.95%
June 30, 2015	$6.398B	▲ 12.50%
May 29, 2015	$5.687B	▲ 6.14%
April 30, 2015	$5.358B	▲ 8.52%
March 31, 2015	$4.937B	▲ 4.87%
February 27, 2015	$4.708B	▲ 1.89%
January 30, 2015	$4.621B	▲ 8.59%
2014	$4.255B	▲ 65.76%
December 31, 2014	$4.255B	▲ 8.01%
November 28, 2014	$3.94B	▲ 14.73%
October 31, 2014	$3.434B	▲ 12.40%
September 30, 2014	$3.055B	▼ 8.42%
August 29, 2014	$3.336B	▲ 17.42%
July 31, 2014	$2.841B	▼ 4.99%
June 30, 2014	$2.99B	▲ 18.23%
May 30, 2014	$2.529B	▲ 4.07%
April 30, 2014	$2.43B	▼ 21.44%
March 31, 2014	$3.094B	▼ 5.79%
February 28, 2014	$3.284B	▲ 11.94%
January 31, 2014	$2.933B	▲ 14.26%
2013	$2.567B	▲ 171.81%
December 31, 2013	$2.567B	▲ 8.08%
November 29, 2013	$2.375B	▲ 15.31%
October 31, 2013	$2.06B	▲ 1.81%
September 30, 2013	$2.023B	▲ 4.80%
August 30, 2013	$1.931B	▲ 24.51%
July 31, 2013	$1.551B	▼ 2.30%
June 28, 2013	$1.587B	▲ 7.78%
May 31, 2013	$1.473B	▲ 26.93%
April 30, 2013	$1.16B	▼ 0.27%
March 28, 2013	$1.163B	▲ 12.06%
February 28, 2013	$1.038B	▼ 1.92%
January 31, 2013	$1.058B	▲ 12.07%
2012	$0.945B	▲ 50.27%
December 31, 2012	$0.945B	▲ 4.22%
November 30, 2012	$0.906B	▼ 0.15%
October 31, 2012	$0.908B	▼ 12.52%
September 28, 2012	$1.038B	▲ 13.01%
August 31, 2012	$0.918B	▲ 21.02%
July 31, 2012	$0.759B	▼ 14.61%
June 29, 2012	$0.888B	▲ 20.45%
May 31, 2012	$0.738B	▲ 10.02%
April 30, 2012	$0.67B	▼ 6.21%
March 30, 2012	$0.715B	▼ 2.04%
February 29, 2012	$0.73B	▼ 1.52%
January 31, 2012	$0.741B	▲ 17.90%
2011	$0.629B	▼ 25.83%
December 30, 2011	$0.629B	▲ 16.08%
November 30, 2011	$0.541B	▼ 18.08%
October 31, 2011	$0.661B	▼ 18.40%
September 30, 2011	$0.81B	— 0.00%
August 31, 2011	$0.81B	▼ 15.16%
July 29, 2011	$0.955B	▼ 2.14%
June 30, 2011	$0.976B	▼ 0.86%
May 31, 2011	$0.984B	▼ 5.29%
April 29, 2011	$1.039B	▲ 7.33%
March 31, 2011	$0.968B	▲ 6.36%
February 28, 2011	$0.91B	▲ 3.90%
January 31, 2011	$0.876B	▲ 3.37%
2010	$0.847B	▲ 128.04%
December 31, 2010	$0.847B	▲ 27.90%
November 30, 2010	$0.663B	▼ 18.18%
October 29, 2010	$0.81B	▲ 4.31%
September 30, 2010	$0.776B	▲ 9.57%
August 31, 2010	$0.708B	▲ 9.59%
July 30, 2010	$0.646B	▼ 3.46%
June 30, 2010	$0.67B	▲ 10.71%
May 28, 2010	$0.605B	▼ 3.84%
April 30, 2010	$0.629B	▲ 12.43%
March 31, 2010	$0.559B	▲ 34.40%
February 26, 2010	$0.416B	▼ 0.22%
January 29, 2010	$0.417B	▲ 12.27%
2009	$0.372B	▲ 351.41%
December 31, 2009	$0.372B	▲ 11.34%
November 30, 2009	$0.334B	▲ 5.69%
October 30, 2009	$0.316B	▼ 13.48%
September 30, 2009	$0.365B	▲ 1.80%
August 31, 2009	$0.359B	▲ 20.90%
July 31, 2009	$0.297B	▲ 4.36%
June 30, 2009	$0.284B	▲ 11.33%
May 29, 2009	$0.255B	▲ 24.11%
April 30, 2009	$0.206B	▲ 8.21%
March 31, 2009	$0.19B	▲ 57.34%
February 27, 2009	$0.121B	▲ 25.39%
January 30, 2009	$96.335M	▲ 17.03%
2008	$82.317M	▼ 67.43%
December 31, 2008	$82.317M	▲ 38.17%
November 28, 2008	$59.575M	▼ 55.75%
October 31, 2008	$0.135B	▼ 26.98%
September 30, 2008	$0.184B	▼ 9.70%
August 29, 2008	$0.204B	▲ 2.38%
July 31, 2008	$0.199B	▲ 11.43%
June 30, 2008	$0.179B	▼ 23.03%
May 30, 2008	$0.233B	▲ 2.47%
April 30, 2008	$0.227B	▲ 85.96%
March 31, 2008	$0.122B	▼ 42.15%
February 29, 2008	$0.211B	▼ 12.37%
January 31, 2008	$0.241B	▼ 4.76%
2007	$0.253B	▼ 8.79%
December 31, 2007	$0.253B	▲ 3.27%
November 30, 2007	$0.245B	▼ 6.99%
October 31, 2007	$0.263B	▼ 7.25%
September 28, 2007	$0.284B	▲ 8.70%
August 31, 2007	$0.261B	▲ 14.57%
July 31, 2007	$0.228B	▼ 1.82%
June 29, 2007	$0.232B	▲ 24.85%
May 31, 2007	$0.186B	▼ 17.69%
April 30, 2007	$0.226B	▲ 1.74%
March 30, 2007	$0.222B	▼ 2.84%
February 28, 2007	$0.228B	▼ 8.86%
January 31, 2007	$0.251B	▼ 9.55%
2006	$0.277B	▼ 26.81%
December 29, 2006	$0.277B	▼ 12.43%
November 30, 2006	$0.316B	▲ 27.95%
October 31, 2006	$0.247B	▼ 20.81%
September 29, 2006	$0.312B	▼ 13.32%
August 31, 2006	$0.36B	▲ 7.99%
July 31, 2006	$0.334B	▼ 12.44%
June 30, 2006	$0.381B	▼ 23.67%
May 31, 2006	$0.499B	▼ 22.66%
April 28, 2006	$0.645B	▲ 24.12%
March 31, 2006	$0.52B	▲ 16.76%
February 28, 2006	$0.445B	▼ 8.16%
January 31, 2006	$0.485B	▲ 28.07%
2005	$0.379B	N/A
December 30, 2005	$0.379B	▲ 6.42%
November 30, 2005	$0.356B	▲ 7.76%
October 31, 2005	$0.33B	▲ 11.96%
September 30, 2005	$0.295B	▼ 6.57%
August 31, 2005	$0.316B	▲ 12.89%
July 29, 2005	$0.28B	▼ 11.13%
June 30, 2005	$0.315B	▼ 11.39%
May 31, 2005	$0.355B	▲ 40.00%
April 29, 2005	$0.254B	N/A

All market cap values reflect closing prices for the period shown.

📊 DexCom Market Cap and Other Industry Peers

Below are selected companies for comparison based on industry, sub-industry, and sector:

Note: Market capitalization figures are based on available sources and may differ slightly from actual values, particularly for historical data.