Quest Diagnostics Incorporated is a diagnostics & research business based in the US. Quest Diagnostics Incorporated shares (DGX) are listed on the NYSE and all prices are listed in US Dollars. Its last market close was $168.18 – an increase of 0.05% over the previous week. Quest Diagnostics Incorporated employs 55,000 staff and has a trailing 12-month revenue of around $10.2 billion.
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Is it a good time to buy Quest Diagnostics Incorporated stock?
The technical analysis gauge below displays real-time ratings for the timeframes you select. This is not a recommendation, however. It represents a technical analysis based on the most popular technical indicators: Moving Averages, Oscillators and Pivots. Finder might not concur and takes no responsibility.
This chart is not advice or a guarantee of success. Rather, it gauges the real-time recommendations of three popular technical indicators: moving averages, oscillators and pivots. Finder is not responsible for how your stock performs.
Quest Diagnostics Incorporated price performance over time
Historical closes compared with the close of $167.03 from 2025-07-16
1 week (2025-07-11)
-0.63%
1 month (2025-06-18)
-7.09%
3 months (2025-04-17)
1.97%
6 months (2025-01-17)
10.47%
1 year (2024-07-18)
13.75%
2 years (2023-07-18)
24.03%
3 years (2022-07-18)
32.88%
5 years (2020-07-17)
48.06%
Is Quest Diagnostics Incorporated stock undervalued or overvalued?
Valuing Quest Diagnostics Incorporated stock is incredibly difficult, and any metric has to be viewed as part of a bigger picture of Quest Diagnostics Incorporated's overall performance. However, analysts commonly use some key metrics to help gauge the value of a stock.
Quest Diagnostics Incorporated's P/E ratio
Quest Diagnostics Incorporated's current share price divided by its per-share earnings (EPS) over a 12-month period gives a "trailing price/earnings ratio" of roughly 21x. In other words, Quest Diagnostics Incorporated shares trade at around 21x recent earnings.
That's relatively low compared to, say, the trailing 12-month P/E ratio for the NASDAQ 100 at the end of 2019 (27.29). The low P/E ratio could mean that investors are pessimistic about the outlook for the shares or simply that they're under-valued.
Quest Diagnostics Incorporated's PEG ratio
Quest Diagnostics Incorporated's "price/earnings-to-growth ratio" can be calculated by dividing its P/E ratio by its growth – to give 1.4908. A low ratio can be interpreted as meaning the shares offer better value, while a higher ratio can be interpreted as meaning the shares offer worse value.
The PEG ratio provides a broader view than just the P/E ratio, as it gives more insight into Quest Diagnostics Incorporated's future profitability. By accounting for growth, it could also help you if you're comparing the share prices of multiple high-growth companies.
Quest Diagnostics Incorporated's EBITDA
Quest Diagnostics Incorporated's EBITDA (earnings before interest, taxes, depreciation and amortisation) is $2 billion.
The EBITDA is a measure of a Quest Diagnostics Incorporated's overall financial performance and is widely used to measure a its profitability.
Quest Diagnostics Incorporated financials
Revenue TTM
$10.2 billion
Operating margin TTM
13.88%
Gross profit TTM
$3.4 billion
Return on assets TTM
6.13%
Return on equity TTM
13.95%
Profit margin
8.83%
Book value
$61.87
Market Capitalization
$18.8 billion
TTM: trailing 12 months
Quest Diagnostics Incorporated's environmental, social and governance track record
Environmental, social and governance (known as ESG) criteria are a set of three factors used to measure the sustainability and social impact of companies like Quest Diagnostics Incorporated.
When it comes to ESG scores, lower is better, and lower scores are generally associated with lower risk for would-be investors.
Quest Diagnostics Incorporated's total ESG risk score
Total ESG risk: 18.33
Socially conscious investors use ESG scores to screen how an investment aligns with their worldview, and Quest Diagnostics Incorporated's overall score of 18.33 (as at 12/31/2018) is excellent – landing it in it in the 16th percentile of companies rated in the same sector.
ESG scores are increasingly used to estimate the level of risk a company like Quest Diagnostics Incorporated is exposed to within the areas of "environmental" (carbon footprint, resource use etc.), "social" (health and safety, human rights etc.), and "governance" (anti-corruption, tax transparency etc.).
Quest Diagnostics Incorporated's environmental score of 0.86 puts it squarely in the 1st percentile of companies rated in the same sector. This could suggest that Quest Diagnostics Incorporated is a leader in its sector terms of its environmental impact, and exposed to a lower level of risk.
Quest Diagnostics Incorporated's social score
Social score: 10.42/100
Quest Diagnostics Incorporated's social score of 10.42 puts it squarely in the 1st percentile of companies rated in the same sector. This could suggest that Quest Diagnostics Incorporated is a leader in its sector when it comes to taking good care of its workforce and the communities it impacts.
Quest Diagnostics Incorporated's governance score
Governance score: 5.77/100
Quest Diagnostics Incorporated's governance score puts it squarely in the 1st percentile of companies rated in the same sector. That could suggest that Quest Diagnostics Incorporated is a leader in its sector when it comes to responsible management and strategy, and exposed to a lower level of risk.
ESG scores also evaluate any incidences of controversy that a company has been involved in. Quest Diagnostics Incorporated scored a 3 out of 5 for controversy – a middle-of-the-table result reflecting that Quest Diagnostics Incorporated hasn't always managed to keep its nose clean.
Environmental, social, and governance (ESG) summary
Quest Diagnostics Incorporated was last rated for ESG on: 2019-01-01.
Total ESG score
18.33
Total ESG percentile
16.26
Environmental score
0.86
Environmental score percentile
1
Social score
10.42
Social score percentile
1
Governance score
5.77
Governance score percentile
1
Level of controversy
3
Quest Diagnostics Incorporated share dividends
Dividend payout ratio: 34.1% of net profits
Recently Quest Diagnostics Incorporated has paid out, on average, around 0% of net profits as dividends. That has enabled analysts to estimate a "forward annual dividend yield" of 0% of the current stock value. This means that over a year, based on recent payouts (which are sadly no guarantee of future payouts), Quest Diagnostics Incorporated shareholders could enjoy a 0% return on their shares, in the form of dividend payments. In Quest Diagnostics Incorporated's case, that would currently equate to about $3.05 per share.
While Quest Diagnostics Incorporated's payout ratio might seem fairly standard, it's worth remembering that Quest Diagnostics Incorporated may be investing much of the rest of its net profits in future growth.
Quest Diagnostics Incorporated's most recent dividend payout was on 20 July 2025. The latest dividend was paid out to all shareholders who bought their shares by 6 July 2025 (the "ex-dividend date").
Have Quest Diagnostics Incorporated's shares ever split?
Quest Diagnostics Incorporated's shares were
split on a 2:1 basis on 20 June 2005
. So if you had owned 1 share the day before before the split, the next day you'd have owned 2 shares. This wouldn't directly have changed the overall worth of your Quest Diagnostics Incorporated shares – just the quantity. However, indirectly, the new 50% lower share price could have impacted the market appetite for Quest Diagnostics Incorporated shares which in turn could have impacted Quest Diagnostics Incorporated's share price.
Over the last 12 months, Quest Diagnostics Incorporated's shares have ranged in value from as little as $135.0857 up to $181.5553. A popular way to gauge a stock's volatility is its "beta".
Beta is a measure of a share's volatility in relation to the market. The market (NYSE average) beta is 1, while Quest Diagnostics Incorporated's is 0.491. This would suggest that Quest Diagnostics Incorporated's shares are less volatile than average (for this exchange).
Quest Diagnostics Incorporated overview
Quest Diagnostics Incorporated provides diagnostic testing and services in the United States and internationally. 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 diagnostic information services primarily under the Quest Diagnostics brand, as well as under the AmeriPath, Dermpath Diagnostics, ExamOne, and Quanum brands to physicians, hospitals, patients and consumers, health plans, government agencies, employers, emerging retail healthcare providers, pharmaceutical companies and insurers, commercial clinical laboratories, and accountable care organizations through a network of laboratories, patient service centers, phlebotomists in physician offices, call centers and mobile phlebotomists, nurses, and other health and wellness professionals. In addition, the company offers risk assessment services for the life insurance industry; and healthcare organizations and clinicians information technology solutions. Quest Diagnostics Incorporated was founded in 1967 and is headquartered in Secaucus, New Jersey. .
Frequently asked questions
What percentage of Quest Diagnostics Incorporated is owned by insiders or institutions? Currently 0.398% of Quest Diagnostics Incorporated shares are held by insiders and 96.033% by institutions.How many people work for Quest Diagnostics Incorporated? Latest data suggests 55,000 work at Quest Diagnostics Incorporated.When does the fiscal year end for Quest Diagnostics Incorporated? Quest Diagnostics Incorporated's fiscal year ends in December.Where is Quest Diagnostics Incorporated based? Quest Diagnostics Incorporated's address is: 500 Plaza Drive, Secaucus, NJ, United States, 07094What is Quest Diagnostics Incorporated's ISIN number? Quest Diagnostics Incorporated's international securities identification number is: US74834L1008What is Quest Diagnostics Incorporated's CUSIP number? Quest Diagnostics Incorporated's Committee on Uniform Securities Identification Procedures number is: 74834L100
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