DexCom (DXCM) - Market capitalization

Market cap: £22.42 Billion

As of June 2026 DexCom has a market cap of £22.42 Billion. This makes DexCom the world's 812th 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	£22.42 B	13.99%
2025	£19.67 B	-21.22%
2024	£24.97 B	163.8%
2023	£9.46 B	-74.23%
2022	£36.73 B	-4.71%
2021	£38.55 B	48.02%
2020	£26.04 B	70.46%
2019	£15.27 B	79.89%
2018	£8.49 B	130.18%
2017	£3.69 B	-9.76%
2016	£4.08 B	-9.43%
2015	£4.51 B	65.2%
2014	£2.73 B	75.62%
2013	£1.55 B	166.33%
2012	£0.58 B	44.51%
2011	£0.40 B	-26.33%
2010	£0.54 B	139.05%
2009	£0.22 B	308.85%
2008	£56.16 M	-55.86%
2007	£0.12 B	0.35%
2006	£0.12 B	-41.82%
2005	£0.21 B

End of Day market cap according to different sources

On Jun 7th, 2026 the market cap of DexCom was reported to be:

£21.05 Billion

by Nasdaq

£21.05 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
Johnson & Johnson JNJ	£418.93 B	1,767.85%	🇺🇸 USA
Abbott Laboratories ABT	£118.31 B	427.52%	🇺🇸 USA
Medtronic MDT	£77.82 B	247.00%	🇮🇪 Ireland
Becton Dickinson BDX	£31.07 B	38.57%	🇺🇸 USA
Edwards Lifesciences EW	£37.29 B	66.29%	🇺🇸 USA
Tandem Diabetes Care TNDM	£0.95 B	-95.73%	🇺🇸 USA
QuidelOrtho QDEL	£0.75 B	-96.64%	🇺🇸 USA
West Pharmaceutical Services WST	£17.05 B	-23.97%	🇺🇸 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: £22.42 Billion