Quest Diagnostics Incorporated (DGX)
NYSE: DGX · Real-Time Price · USD
239.15
+5.72 (2.45%)
At close: Oct 15, 2026, 4:00 PM EDT
231.09
-8.06 (-3.37%)
After-hours: Oct 15, 2026, 5:11 PM EDT
Quest Diagnostics Market Cap
Quest Diagnostics has a market cap or net worth of $26.4 billion as of October 15, 2026. It is the 952nd most valuable company in the world and the 397th biggest in the United States. Its market cap has increased by 27.33% in one year.
Market Cap
26.40B
Enterprise Value
32.17B
1-Year Change
27.33%
Global Rank
Country Rank
#397 United States
Category
ChartMarket Cap Chart
Since December 1, 1998, Quest Diagnostics's market cap has increased from $531.80M to $26.40B, an increase of 4,863.48%. That is a compound annual growth rate of 15.03%.
| Date | Market Cap | % Change |
|---|---|---|
| Oct 15, 2026 | 26.40B | 36.74% |
| 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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