Quest Diagnostics Incorporated (NYSE:DGX) — Market Cap & Net Worth

$20.74 Billion USD  · Rank #1254

Market Cap & Net Worth: Quest Diagnostics Incorporated (DGX)

Quest Diagnostics Incorporated (NYSE:DGX) has a market capitalization of $20.74 Billion ($20.74 Billion) as of June 22, 2026. Listed on the NYSE stock exchange, this USA-based company holds position #1254 globally and #508 in its home market, demonstrating a -4.31% decrease in market value over the past year.

Market capitalization, also known as net worth in stock markets, is calculated by multiplying Quest Diagnostics Incorporated's stock price $195.00 by its total outstanding shares 110696429 (110.70 Million). Review Quest Diagnostics Incorporated balance sheet liabilities to assess the company's total debt and financial obligations.

Quest Diagnostics Incorporated Market Cap History: 2015 to 2026

Quest Diagnostics Incorporated's market capitalization history from 2015 to 2026. Data shows growth from $6.53 Billion to $21.59 Billion (12.69% CAGR).

Index Memberships

Quest Diagnostics Incorporated is a constituent of 1 market index:

Index Total Market Cap Weight (%) Rank by Market Cap
S&P 500 Index
GSPC
$61.74 Trillion 0.04% #356 of 503

Weight: Quest Diagnostics Incorporated's market cap as a percentage of total index value. Rank: Position among all constituents by market cap.

Quest Diagnostics Incorporated Market Cap to Earnings & Revenue Ratios Timeline

This chart shows how Quest Diagnostics Incorporated's valuation ratios have evolved. The Price to Sales (P/S) ratio compares market cap to revenue, while the Price to Earnings (P/E) ratio compares market cap to net income. Lower values may indicate a more undervalued company relative to its financial performance.

Latest Price to Sales (P/S) Ratio

1.74x

Quest Diagnostics Incorporated's market cap is 1.74 times its annual revenue

Industry average: 23.32x Lower than industry average

Latest Price to Earnings (P/E) Ratio

19.36x

Quest Diagnostics Incorporated's market cap is 19.36 times its annual earnings

What These Ratios Tell Investors:

  • Price to Sales (P/S) Ratio: Shows how much investors are paying for each dollar of the company's sales. Lower P/S ratios may indicate undervaluation.
  • Price to Earnings (P/E) Ratio: Shows how much investors are paying for each dollar of the company's earnings. This is one of the most common valuation metrics.
  • Trends in these ratios over time can indicate changing investor sentiment about the company's future growth prospects.
  • Industry comparison provides context for whether the company is valued higher or lower than peers.
Year Market Cap (USD) Revenue (USD) Net Income (USD) P/S Ratio P/E Ratio
2016 $8.62 Billion $7.51 Billion $645.00 Million 1.15x 13.36x
2017 $9.41 Billion $7.71 Billion $772.00 Million 1.22x 12.18x
2018 $8.10 Billion $7.53 Billion $736.00 Million 1.08x 11.01x
2019 $10.63 Billion $7.73 Billion $858.00 Million 1.38x 12.39x
2020 $12.13 Billion $9.44 Billion $1.43 Billion 1.28x 8.47x
2021 $17.93 Billion $10.79 Billion $2.00 Billion 1.66x 8.99x
2022 $16.61 Billion $9.88 Billion $946.00 Million 1.68x 17.56x
2023 $14.94 Billion $9.25 Billion $854.00 Million 1.61x 17.50x
2024 $16.70 Billion $9.87 Billion $871.00 Million 1.69x 19.17x
2025 $19.21 Billion $11.04 Billion $992.00 Million 1.74x 19.36x

Competitor Companies of DGX by Market Capitalization

Companies near Quest Diagnostics Incorporated in the global market cap rankings as of June 22, 2026.

Key companies related to Quest Diagnostics Incorporated by market ranking:

  • Thermo Fisher Scientific Inc (NYSE:TMO): Ranked #131 globally with a market cap of $174.56 Billion USD.
  • Danaher Corporation (NYSE:DHR): Ranked #189 globally with a market cap of $125.14 Billion USD.
  • IDEXX Laboratories Inc (NASDAQ:IDXX): Ranked #622 globally with a market cap of $44.18 Billion USD.
  • LONZA GROUP UNSP.ADR 1/10 (F:LO3A): Ranked #663 globally with a market cap of $41.04 Billion USD ( €35.10 Billion EUR).
Market capitalization comparison (in billions USD)
Rank Company Symbol Market Cap Price
#131 Thermo Fisher Scientific Inc NYSE:TMO $174.56 Billion $464.61
#189 Danaher Corporation NYSE:DHR $125.14 Billion $177.17
#622 IDEXX Laboratories Inc NASDAQ:IDXX $44.18 Billion $562.09
#663 LONZA GROUP UNSP.ADR 1/10 F:LO3A $41.04 Billion €54.50

Quest Diagnostics Incorporated Historical Marketcap From 2015 to 2026

Between 2015 and today, Quest Diagnostics Incorporated's market cap moved from $6.53 Billion to $ 21.59 Billion, with a yearly change of 12.69%.

Year Market Cap Change (%)
2026 $21.59 Billion +12.37%
2025 $19.21 Billion +15.03%
2024 $16.70 Billion +11.77%
2023 $14.94 Billion -10.05%
2022 $16.61 Billion -7.35%
2021 $17.93 Billion +47.86%
2020 $12.13 Billion +14.11%
2019 $10.63 Billion +31.13%
2018 $8.10 Billion -13.84%
2017 $9.41 Billion +9.16%
2016 $8.62 Billion +31.90%
2015 $6.53 Billion --

End of Day Market Cap According to Different Sources

On Jun 22nd, 2026 the market cap of Quest Diagnostics Incorporated was reported to be:

Source Market Cap
Yahoo Finance $20.74 Billion USD
MoneyControl $20.74 Billion USD
MarketWatch $20.74 Billion USD
marketcap.company $20.74 Billion USD
Reuters $20.74 Billion USD

Market cap values may vary slightly between sources due to differences in calculation methods, timing, and data refresh rates.

About Quest Diagnostics Incorporated

NYSE:DGX USA Diagnostics & Research
Market Cap
$21.59 Billion
Market Cap Rank
#1254 Global
#508 in USA
Share Price
$195.00
Change (1 day)
-1.40%
52-Week Range
$166.42 - $211.91
All Time High
$211.91
About

Quest Diagnostics Incorporated provides diagnostic testing and services in the United States. The company develops and delivers diagnostic information services, such as routine, non-routine and advanced clinical testing, anatomic pathology testing, and other diagnostic information services. It also provides services under the Quest Diagnostics brand, as well as under the AmeriPath, Dermpath Diagn… Read more