Castle BiosciencesCSTL +3.80%72 OCF Yield % is 6.69 as of Jun. 26, 2026, which is 1212% above its 10-year median of 0.51. GuruFocus rates CSTL with a GF Score™ of 72/100 and a GF Value™ of $29.16 (Modestly Undervalued). The stock has 4 warning signs investors should review. Among 215 Medical Diagnostics & Research companies, Castle Biosciences ranks better than 73.49% 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.
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.
Castle Biosciences OCF Yield % Related Terms
Castle Biosciences OCF Yield % Historical Data
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The historical data trend for Castle Biosciences'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, Castle Biosciences'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.
Castle Biosciences OCF Yield % vs Medical Diagnostics & Research Industry
For the Medical Diagnostics & Research industry and Healthcare sector, Castle Biosciences's OCF Yield % distribution charts can be found below:
* The bar in red indicates where Castle Biosciences'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.
Castle Biosciences (CSTL) has a OCF Yield % of 6.69 as of Jun. 26, 2026. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on Castle Biosciences and its competitors. This is 1212% above median its historical median of 0.51. According to the industry distribution chart, Castle Biosciences ranks #57 out of 215 companies in the Medical Diagnostics & Research industry, placing it in the top 26.5%.
Is Castle Biosciences' OCF Yield % too high?
Castle Biosciences' current OCF Yield % of 6.69 is 1212% above median its 10-year median of 0.51. The Medical Diagnostics & Research industry median OCF Yield % is 1.05. Castle Biosciences' value of 6.69 is 537.1% above this industry median. Based on the distribution chart, Castle Biosciences ranks #57 out of 215 companies in the Medical Diagnostics & Research industry, which is above the industry midpoint. Overall, Castle Biosciences has a GF Score™ of 72/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Castle Biosciences' OCF Yield % compare to FLGT and MYGN?
According to the Medical Diagnostics & Research industry distribution chart, Castle Biosciences ranks #57 out of 215 companies for OCF Yield %. This puts Castle Biosciences in the upper half of its industry. The industry median OCF Yield % is 1.05. Castle Biosciences' value of 6.69 is 537.1% above this benchmark. While the company's 10-year median is 0.51 vs. the industry median of 1.05, Castle Biosciences 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 1.05, based on 215 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. Castle Biosciences's current OCF Yield % of 6.69 is 537.1% 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 Castle Biosciences and its competitors. For the Medical Diagnostics & Research industry, the median OCF Yield % is 1.05 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Castle Biosciences's current OCF Yield % is 6.69, which is 1212% above median its own 10-year median of 0.51. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Castle Biosciences stock overvalued right now?
Based on GuruFocus' analysis, Castle Biosciences (CSTL) is currently considered Modestly Undervalued. The stock's GF Value™ is $29.16, compared to a current price of $23.78 — trading 18.4% below its estimated fair value. The current OCF Yield % is 6.69, which is 1212% above median its 10-year median of 0.51 and 537.1% above the Medical Diagnostics & Research industry median of 1.05. Castle Biosciences' overall GF Score™ is 72/100 with 4 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 Castle Biosciences (CSTL), the current OCF Yield % is 6.69 as of Jun. 26, 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 Castle Biosciences (CSTL) Overvalued in 2026?
Based on GuruFocus' analysis, Castle Biosciences stock appears to be undervalued.
The current stock price of $23.78 is trading 18.4% below its estimated GF Value™ of $29.16.
GuruFocus considers Castle Biosciences to be Modestly Undervalued.
Key valuation signals for CSTL:
OCF Yield %: 6.69 (1212% above median its 10-year median of 0.51)
GF Value™: $29.16 vs. price of $23.78 (18.4% below fair value)
Industry Position: 537.1% above the Medical Diagnostics & Research median (#57 of 215)
No single metric tells the full story. See the CSTL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Castle Biosciences Inc is a molecular diagnostics company. The group provides test solutions for the diagnosis and treatment of dermatologic cancers, Barrett's esophagus (BE), and uveal melanoma. The product portfolio of the company includes DecisionDx-Melanoma, a risk stratification gene expression profile (GEP) test; DecisionDx-SCC, a risk stratification test for cutaneous squamous cell carcinoma; MyPath Melanoma, a diagnostic GEP test for use in patients with difficult-to-diagnose melanocytic lesions; and TissueCypher, a test to predict future development of progression of high-grade dysplasia and/or esophageal cancer. The company derives revenues through the delivery of test reports for its molecular diagnostic tests.
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