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Quest DiagnosticsMEX:DGX 71 OCF Yield % is 8.08 as of Jul. 22, 2026, which is 7% below its 10-year median of 8.67. GuruFocus rates MEX:DGX with a GF Score™ of 71/100 and a GF Value™ of MXN3,302.49 (Fairly Valued). The stock has 8 warning signs investors should review. Among 213 Medical Diagnostics & Research companies, Quest Diagnostics ranks better than 77.93% on this metric.
OCF Yield % is calculated as Cash Flow from Operations divided by Market Capitalization. It is a financial solvency ratio that compares the operating cash flow a company is expected to earn against its market value.
The historical rank and industry rank for Quest Diagnostics's OCF Yield % or its related term are showing as below:
MEX:DGX'
s OCF Yield % Range Over the Past 10 Years
Min: 6.55 Med: 8.67 Max: 15.32
Current: 8.08
During the past 13 years, the highest OCF Yield % of Quest Diagnostics was 15.32%. The lowest was 6.55%. And the median was 8.67%.
MEX:DGX's OCF Yield % is ranked better than 77.93% of 213
companies
in the Medical Diagnostics & Research industry
Industry Median: 1.07
vs MEX:DGX: 8.08
Similar to Earnings Yield %, OCF Yield % is financial solvency ratio. A lower ratio suggests a less attractive investment, indicating that investors might not receive substantial returns in proportion to their investment. Conversely, a high operating cash flow yield signals that a company generates sufficient cash to comfortably meet its debts, obligations, and dividend payments, making it a promising investment choice.
Quest Diagnostics OCF Yield % Related Terms
Quest Diagnostics OCF Yield % Historical Data
* Premium members only.
The historical data trend for Quest Diagnostics's OCF Yield % can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Diagnostics & Research subindustry, Quest Diagnostics's OCF Yield %, along with its competitors' market caps and OCF Yield % data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Quest Diagnostics OCF Yield % vs Medical Diagnostics & Research Industry
For the Medical Diagnostics & Research industry and Healthcare sector, Quest Diagnostics's OCF Yield % distribution charts can be found below:
* The bar in red indicates where Quest Diagnostics's OCF Yield % falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Quest Diagnostics (MEX:DGX) has a OCF Yield % of 8.08 as of Jul. 22, 2026. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on Quest Diagnostics and its competitors. This is near median its historical median of 8.67. Over the past decade, Quest Diagnostics' OCF Yield % has ranged from 6.55 to 15.32. According to the industry distribution chart, Quest Diagnostics ranks #47 out of 213 companies in the Medical Diagnostics & Research industry, placing it in the top 22.1%.
Is Quest Diagnostics' OCF Yield % too high?
Quest Diagnostics' current OCF Yield % of 8.08 is near median its 10-year median of 8.67. Over the past 10 years, this metric has ranged from a low of 6.55 to a high of 15.32. The Medical Diagnostics & Research industry median OCF Yield % is 1.07. Quest Diagnostics' value of 8.08 is 655.1% above this industry median. Based on the distribution chart, Quest Diagnostics ranks #47 out of 213 companies in the Medical Diagnostics & Research industry, which is in the top quartile — a strong position relative to peers. Overall, Quest Diagnostics has a GF Score™ of 71/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Quest Diagnostics' OCF Yield % compare to LH and MTD?
According to the Medical Diagnostics & Research industry distribution chart, Quest Diagnostics ranks #47 out of 213 companies for OCF Yield %. This places Quest Diagnostics in the top 22% of its industry — outperforming the majority of peers. The industry median OCF Yield % is 1.07. Quest Diagnostics' value of 8.08 is 655.1% above this benchmark. Historically, Quest Diagnostics' own OCF Yield % has ranged from 6.55 to 15.32 over the past decade. While the company's 10-year median is 8.67 vs. the industry median of 1.07, Quest Diagnostics has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good OCF Yield % for a Medical Diagnostics & Research company?
The median OCF Yield % among Medical Diagnostics & Research companies is 1.07, based on 213 companies in the industry. Companies in the top quartile (top 25%) have a OCF Yield % significantly above this median, while those in the bottom quartile fall well below. However, OCF Yield % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Quest Diagnostics's current OCF Yield % of 8.08 is 655.1% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high OCF Yield % mean?
A high OCF Yield % can signal that a stock is expensive relative to its fundamentals. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on Quest Diagnostics and its competitors. For the Medical Diagnostics & Research industry, the median OCF Yield % is 1.07 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Quest Diagnostics's current OCF Yield % is 8.08, which is near median its own 10-year median of 8.67. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Quest Diagnostics stock overvalued right now?
Based on GuruFocus' analysis, Quest Diagnostics (MEX:DGX) is currently considered Fairly Valued. The stock's GF Value™ is MXN3,302.49, compared to a current price of MXN3,624.00 — trading 9.7% above its estimated fair value. The current OCF Yield % is 8.08, which is near median its 10-year median of 8.67 and 655.1% above the Medical Diagnostics & Research industry median of 1.07. Quest Diagnostics' overall GF Score™ is 71/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Yield % calculated?
OCF Yield % is calculated from a company's financial statements. For Quest Diagnostics (MEX:DGX), the current OCF Yield % is 8.08 as of Jul. 22, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Quest Diagnostics (MEX:DGX) Overvalued in 2026?
Based on GuruFocus' analysis, Quest Diagnostics stock appears to be overvalued.
The current stock price of MXN3,624.00 is trading 9.7% above its estimated GF Value™ of MXN3,302.49.
GuruFocus considers Quest Diagnostics to be Fairly Valued.
Key valuation signals for MEX:DGX:
OCF Yield %: 8.08 (near median its 10-year median of 8.67)
GF Value™: MXN3,302.49 vs. price of MXN3,624.00 (9.7% above fair value)
Industry Position: 655.1% above the Medical Diagnostics & Research median (#47 of 213)
No single metric tells the full story. See the MEX:DGX stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Quest Diagnostics is a leading independent provider of diagnostic testing, information, and services in the US. The company generates over 97% of its revenue through clinical testing, anatomic pathology, esoteric testing, and substance abuse testing with specimens collected at its national network of roughly 2,400 patient service centers, as well as multiple doctors offices and hospitals. The firm also runs a much smaller diagnostic solutions segment that provides clinical trials testing, risk-assessment services, and information technology solutions.
71GF Score
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