DexCom (DXCM) - Market capitalization

Market cap: NZ$47.55 Billion

As of February 2026 DexCom has a market cap of NZ$47.55 Billion. This makes DexCom the world's 846th 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	NZ$47.55 B	3.95%
2025	NZ$45.75 B	-17.67%
2024	NZ$55.57 B	191.37%
2023	NZ$19.07 B	-72.76%
2022	NZ$70.00 B	-8.12%
2021	NZ$76.19 B	54.85%
2020	NZ$49.20 B	65.39%
2019	NZ$29.75 B	85.09%
2018	NZ$16.07 B	128.89%
2017	NZ$7.02 B	-3.6%
2016	NZ$7.28 B	-25.49%
2015	NZ$9.77 B	80.01%
2014	NZ$5.43 B	73.85%
2013	NZ$3.12 B	172.1%
2012	NZ$1.14 B	42.57%
2011	NZ$0.80 B	-26.68%
2010	NZ$1.09 B	114.69%
2009	NZ$0.51 B	260.68%
2008	NZ$0.14 B	-57.01%
2007	NZ$0.32 B	-6.39%
2006	NZ$0.35 B	-35.88%
2005	NZ$0.54 B

End of Day market cap according to different sources

On Jan 31st, 2026 the market cap of DexCom was reported to be:

NZ$47.29 Billion

by Nasdaq

NZ$47.55 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Johnson & Johnson JNJ	NZ$909.08 B	1,811.50%	🇺🇸 USA
Abbott Laboratories ABT	NZ$315.86 B	564.15%	🇺🇸 USA
Medtronic MDT	NZ$219.26 B	361.05%	🇮🇪 Ireland
Becton Dickinson BDX	NZ$96.43 B	102.76%	🇺🇸 USA
Edwards Lifesciences EW	NZ$79.31 B	66.76%	🇺🇸 USA
Tandem Diabetes Care TNDM	NZ$2.23 B	-95.29%	🇺🇸 USA
QuidelOrtho QDEL	NZ$3.06 B	-93.56%	🇺🇸 USA
West Pharmaceutical Services WST	NZ$27.60 B	-41.95%	🇺🇸 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: NZ$47.55 Billion