DexCom (DXCM) - Market capitalization

Market cap: $27.91 Billion USD

As of February 2026 DexCom has a market cap of $27.91 Billion USD. This makes DexCom the world's 879th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.

Market cap history of DexCom from 2005 to 2026

End of year Market Cap

Year	Marketcap	Change
2026	$27.91 B	5.36%
2025	$26.49 B	-15.45%
2024	$31.34 B	159.85%
2023	$12.06 B	-72.86%
2022	$44.44 B	-14.6%
2021	$52.04 B	46.58%
2020	$35.50 B	77.19%
2019	$20.03 B	85.83%
2018	$10.78 B	116.19%
2017	$4.98 B	-1.16%
2016	$5.04 B	-24.59%
2015	$6.69 B	57.24%
2014	$4.25 B	65.76%
2013	$2.56 B	171.81%
2012	$0.94 B	50.27%
2011	$0.62 B	-25.83%
2010	$0.84 B	128.04%
2009	$0.37 B	351.42%
2008	$82.31 M	-67.43%
2007	$0.25 B	1.78%
2006	$0.24 B	-33.91%
2005	$0.37 B

End of Day market cap according to different sources

On Feb 3rd, 2026 the market cap of DexCom was reported to be:

$27.93 Billion USD

by Nasdaq

$28.09 Billion USD

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Johnson & Johnson JNJ	$565.48 B	1,925.56%	🇺🇸 USA
Abbott Laboratories ABT	$189.84 B	580.04%	🇺🇸 USA
Medtronic MDT	$131.78 B	372.06%	🇮🇪 Ireland
Becton Dickinson BDX	$59.49 B	113.10%	🇺🇸 USA
Edwards Lifesciences EW	$47.25 B	69.27%	🇺🇸 USA
Tandem Diabetes Care TNDM	$1.29 B	-95.37%	🇺🇸 USA
QuidelOrtho QDEL	$2.01 B	-92.78%	🇺🇸 USA
West Pharmaceutical Services WST	$17.02 B	-39.03%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Market capitalization of DexCom (DXCM)

Market cap: $27.91 Billion USD