DexCom (DXCM) - Market capitalization

Market cap: A$40.63 Billion

As of January 2026 DexCom has a market cap of A$40.63 Billion. This makes DexCom the world's 890th 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	A$40.63 B	2.71%
2025	A$39.56 B	-21.49%
2024	A$50.38 B	184.62%
2023	A$17.70 B	-72.89%
2022	A$65.31 B	-9.01%
2021	A$71.78 B	55.47%
2020	A$46.17 B	61.34%
2019	A$28.61 B	86.98%
2018	A$15.30 B	139.58%
2017	A$6.38 B	-8.74%
2016	A$7.00 B	-23.78%
2015	A$9.18 B	76.65%
2014	A$5.19 B	80.66%
2013	A$2.87 B	216.67%
2012	A$0.90 B	48.27%
2011	A$0.61 B	-26.52%
2010	A$0.83 B	101.67%
2009	A$0.41 B	254.54%
2008	A$0.11 B	-59.64%
2007	A$0.28 B	-8.23%
2006	A$0.31 B	-38.66%
2005	A$0.51 B

End of Day market cap according to different sources

On Jan 14th, 2026 the market cap of DexCom was reported to be:

A$40.63 Billion

by Nasdaq

A$40.85 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Edwards Lifesciences EW	A$73.14 B	80.02%	🇺🇸 USA
Becton Dickinson BDX	A$88.51 B	117.85%	🇺🇸 USA
West Pharmaceutical WST	A$29.88 B	-26.46%	🇺🇸 USA
Tandem Diabetes Care TNDM	A$2.09 B	-94.83%	🇺🇸 USA
Medtronic MDT	A$188.76 B	364.56%	🇮🇪 Ireland
Abbott Laboratories ABT	A$321.90 B	692.24%	🇺🇸 USA
Johnson & Johnson JNJ	A$780.87 B	1,821.82%	🇺🇸 USA
QuidelOrtho QDEL	A$3.48 B	-91.43%	🇺🇸 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: A$40.63 Billion