Quest Diagnostics Incorporated (DGX)
NYSE: DGX · Real-Time Price · USD
255.60
+8.54 (3.46%)
At close: Nov 4, 2026, 4:00 PM EST
256.50
+0.90 (0.35%)
After-hours: Nov 4, 2026, 7:01 PM EST
Quest Diagnostics Market Cap
Quest Diagnostics has a market cap or net worth of $28.12 billion as of November 4, 2026. It is the 905th most valuable company in the world and the 392nd biggest in the United States. Its market cap has increased by 41.35% in one year.
Market Cap
28.12B
Enterprise Value
33.72B
1-Year Change
41.35%
Global Rank
Country Rank
#392 United States
Category
ChartMarket Cap Chart
Since December 1, 1998, Quest Diagnostics's market cap has increased from $531.80M to $28.12B, an increase of 5,187.87%. That is a compound annual growth rate of 15.26%.
| Date | Market Cap | % Change |
|---|---|---|
| Nov 4, 2026 | 28.12B | 45.67% |
| Dec 31, 2025 | 19.30B | 14.64% |
| Dec 31, 2024 | 16.84B | 8.62% |
| Dec 29, 2023 | 15.50B | -12.99% |
| Dec 30, 2022 | 17.82B | -16.05% |
| Dec 31, 2021 | 21.22B | 32.15% |
| Dec 31, 2020 | 16.06B | 11.65% |
| Dec 31, 2019 | 14.38B | 26.95% |
| Dec 31, 2018 | 11.33B | -15.59% |
| Dec 29, 2017 | 13.42B | 5.36% |
| Dec 30, 2016 | 12.74B | 24.94% |
| Dec 31, 2015 | 10.20B | 5.21% |
| Dec 31, 2014 | 9.69B | 24.48% |
| Dec 31, 2013 | 7.79B | -15.94% |
| Dec 31, 2012 | 9.26B | 1.13% |
| Dec 30, 2011 | 9.16B | -0.41% |
| Dec 31, 2010 | 9.20B | -17.62% |
| Dec 31, 2009 | 11.16B | 9.95% |
| Dec 31, 2008 | 10.15B | -0.86% |
| Dec 31, 2007 | 10.24B | -0.93% |
| Dec 29, 2006 | 10.34B | -0.63% |
| Dec 30, 2005 | 10.40B | 7.59% |
| Dec 31, 2004 | 9.67B | 27.23% |
| Dec 31, 2003 | 7.60B | 36.58% |
| Dec 31, 2002 | 5.56B | -18.81% |
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Market Capitalization
Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.
Formula: Market Cap = Stock Price * Shares Outstanding
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