Quest Diagnostics (DGX) - Market capitalization

Market cap: HK$158.97 Billion

As of December 2025 Quest Diagnostics has a market cap of HK$158.97 Billion. This makes Quest Diagnostics the world's 1092th 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 Quest Diagnostics from 1997 to 2025

End of year Market Cap

Year	Marketcap	Change
2025	HK$158.97 B	20.2%
2024	HK$132.25 B	9.24%
2023	HK$121.07 B	-13.02%
2022	HK$139.20 B	-15.89%
2021	HK$165.49 B	32.93%
2020	HK$124.50 B	12.55%
2019	HK$110.61 B	25.65%
2018	HK$88.03 B	-16.07%
2017	HK$104.88 B	6.16%
2016	HK$98.80 B	25.31%
2015	HK$78.84 B	5.27%
2014	HK$74.90 B	25.29%
2013	HK$59.78 B	-16.4%
2012	HK$71.51 B	0.52%
2011	HK$71.14 B	-0.78%
2010	HK$71.70 B	-16.44%
2009	HK$85.81 B	9.36%
2008	HK$78.46 B	-2.02%
2007	HK$80.07 B	0.16%
2006	HK$79.94 B	0.93%
2005	HK$79.21 B	5.41%
2004	HK$75.14 B	28.97%
2003	HK$58.26 B	34.03%
2002	HK$43.46 B	-19.04%
2001	HK$53.69 B	4.17%
2000	HK$51.54 B	391.81%
1999	HK$10.48 B	152.87%
1998	HK$4.14 B	5.69%
1997	HK$3.92 B

End of Day market cap according to different sources

On Dec 4th, 2025 the market cap of Quest Diagnostics was reported to be:

HK$159.46 Billion

by Nasdaq

HK$160.33 Billion

by CompaniesMarketCap

Market capitalization for similar companies or competitors

Name	Marketcap	Market cap differencediff.	Country
LabCorp LH	HK$167.46 B	5.34%	🇺🇸 USA
Psychemedics PMD	HK$0.12 B	-99.92%	🇺🇸 USA
NeoGenomics NEO	HK$11.88 B	-92.52%	🇺🇸 USA
Enzo Biochem ENZB	HK$0.28 B	-99.82%	🇺🇸 USA
Translate Bio TBIO.defunct	HK$21.98 B	-86.17%	🇺🇸 USA
Qiagen QGEN	HK$79.38 B	-50.06%	🇳🇱 Netherlands

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 Quest Diagnostics (DGX)

Market cap: HK$158.97 Billion