Market Cap for Quest Diagnostics (DGX)
According to Quest Diagnostics's latest reported financial statements, the company's latest reported market cap is $21.95B USD. Market capitalization is the total dollar value of all outstanding shares — shares outstanding × stock price — and the standard measure of a company's equity value. On this page, historical market cap snaps filing-period share counts to closing prices on or before each statement date (not intraday tick data).
Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .
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Latest period
$21.95B
YoY change
+8.1%
5Y CAGR
-0.9%
Peak year (2021)
$22.15B
Latest annual
$21.20B
Market Cap history chart for Quest Diagnostics (DGX) from 1996 to 2026
Market Cap history table for Quest Diagnostics (DGX) from 1996 to 2026
| Fiscal year | Period ended | Reported | Market Cap | YoY |
|---|---|---|---|---|
| 2026 | $21.20B | +8.1% | ||
| 2025 | $19.61B | +15.0% | ||
| 2024 | $17.05B | +9.4% | ||
| 2023 | $15.58B | -15.6% | ||
| 2022 | $18.46B | -16.6% | ||
| 2021 | $22.15B | +36.6% | ||
| 2020 | $16.21B | +11.6% | ||
| 2019 | $14.52B | +25.5% | ||
| 2018 | $11.57B | -16.1% | ||
| 2017 | $13.79B | +5.7% | ||
| 2016 | $13.05B | +26.5% | ||
| 2015 | $10.32B | +6.1% | ||
| 2014 | $9.72B | +18.7% | ||
| 2013 | $8.19B | -12.2% | ||
| 2012 | $9.33B | +0.3% | ||
| 2011 | $9.30B | -2.8% | ||
| 2010 | $9.57B | -15.6% | ||
| 2009 | $11.34B | +11.5% | ||
| 2008 | $10.17B | -1.5% | ||
| 2007 | $10.33B | -2.3% | ||
| 2006 | $10.58B | -0.0% | ||
| 2005 | $10.58B | +4.2% | ||
| 2004 | $10.15B | +28.4% | ||
| 2003 | $7.90B | +39.3% | ||
| 2002 | $5.68B | -19.1% | ||
| 2001 | $7.01B | +4.5% | ||
| 2000 | $6.71B | +545.7% | ||
| 1999 | $1.04B | +93.1% | ||
| 1998 | $538.00M | +9.8% | ||
| 1997 | $490.17M | +10.4% | ||
| 1996 | $443.97M | — |
Market Cap values are taken from Quest Diagnostics's reported income statements (10-Q quarterly and 10-K annual filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the date the filing was reported; YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.
Analysis
As of the 2026 fiscal year, Quest Diagnostics (DGX) reported market cap of $21.20B – grew 8.1% year-over-year.
Through 2021–2026 (5 years), Quest Diagnostics market cap delivered a -0.9% annualised rate; sustaining 3 straight years of year-over-year growth.
Quest Diagnostics market cap peaked at $22.15B in 2021; the latest annual figure is $21.20B in 2026 (4.3% below peak).
The dataset's maximum market cap sits at $22.15B (2021); the minimum reading of $443.97M dates to 1996.
Within Healthcare, Quest Diagnostics (DGX) ranks 9th among 8 peers we track. The peer median for market cap is $311.16B.
Quest Diagnostics Market Cap by Year
Quest Diagnostics Market Cap 2026: $21.20B
Quest Diagnostics market cap in 2026 was $21.20B, grew 8.1% from 2025.
Quest Diagnostics Market Cap 2025: $19.61B
Quest Diagnostics market cap in 2025 was $19.61B, grew 15.0% from 2024.
Quest Diagnostics Market Cap 2024: $17.05B
Quest Diagnostics market cap in 2024 was $17.05B, grew 9.4% from 2023.
Quest Diagnostics Market Cap 2023: $15.58B
Quest Diagnostics market cap in 2023 was $15.58B, declined 15.6% below 2022.
Quest Diagnostics Market Cap 2022: $18.46B
Quest Diagnostics market cap in 2022 was $18.46B.
See more financial history for Quest Diagnostics (DGX).
Sector peers — Market Cap
Companies in the same sector as Quest Diagnostics, ranked by their latest market cap.
| Company | Market Cap | Sector |
|---|---|---|
| Eli Lilly and Company (LLY) | $825.77B | Healthcare |
| Johnson & Johnson (JNJ) | $548.34B | Healthcare |
| AbbVie Inc. (ABBV) | $349.67B | Healthcare |
| UnitedHealth Group Incorporated (UNH) | $332.91B | Healthcare |
| AstraZeneca PLC (AZN) | $289.41B | Healthcare |
| Merck & Co., Inc. (MRK) | $272.11B | Healthcare |
| Amgen Inc. (AMGN) | $183.05B | Healthcare |
| Novo Nordisk A/S (NVO) | $182.96B | Healthcare |
Frequently asked questions
What is Quest Diagnostics's market cap?
- Latest reported market cap for Quest Diagnostics (DGX) is $21.95B (period ending March 31, 2026).
How has Quest Diagnostics market cap changed year-over-year?
- Quest Diagnostics (DGX) market cap changed +8.1% year-over-year on the latest annual filing.
What is the long-term growth rate of Quest Diagnostics market cap?
- Quest Diagnostics (DGX) market cap compound annual growth rate is -0.9% over the most recent 5 years available.
When did Quest Diagnostics market cap hit its highest annual value?
- Quest Diagnostics market cap reached its highest annual value of $22.15B in 2021.
What was Quest Diagnostics market cap in 2025?
- Quest Diagnostics (DGX) market cap in 2025 was $19.61B.
What was Quest Diagnostics market cap in 2026?
- Quest Diagnostics (DGX) market cap in 2026 was $21.20B.
Metrics overview
Pick a metric for charts, filings, and peers — each row shows the latest TTM or annual value with year-over-year change.
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