CSLHAM:CSJ +0.07%73 OCF Margin % is 16.09% as of Dec. 2025, which is 25% below its 10-year median of 21.51. GuruFocus rates HAM:CSJ with a GF Score™ of 73/100 and a GF Value™ of €170.71 (Significantly Undervalued). The stock has 7 warning signs investors should review. Among 959 Biotechnology companies, CSL ranks better than 80.92% on this metric.
OCF Margin % is calculated as Cash Flow from Operations divided by its Revenue. CSL's Cash Flow from Operations for the
six
months ended in Dec. 2025 was €1,112 Mil. CSL's Revenue for the
six
months ended in Dec. 2025 was €6,911 Mil. Therefore, CSL's OCF Margin % for the quarter that ended in Dec. 2025 was 16.09%.
The historical rank and industry rank for CSL's OCF Margin % or its related term are showing as below:
HAM:CSJ'
s OCF Margin % Range Over the Past 10 Years
Min: 18.82 Med: 21.51 Max: 35.28
Current: 16.09
During the past 13 years, the highest OCF Margin % of CSL was 35.28%. The lowest was 18.82%. And the median was 21.51%.
HAM:CSJ's OCF Margin % is ranked better than 80.92% of 959
companies
in the Biotechnology industry
Industry Median: -66.52
vs HAM:CSJ: 16.09
CSL OCF Margin % Related Terms
CSL OCF Margin % Historical Data
* Premium members only.
The historical data trend for CSL's OCF Margin % 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.
HAM:CSJ vs VRTX, REGN, ALNY: OCF Margin % Comparison
For the Biotechnology subindustry, CSL's OCF Margin %, along with its competitors' market caps and OCF Margin % 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.
CSL OCF Margin % vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, CSL's OCF Margin % distribution charts can be found below:
* The bar in red indicates where CSL's OCF Margin % 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.
CSL (HAM:CSJ) has a OCF Margin % of 16.09% as of Dec. 2025. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on CSL and its competitors. This is 25% below median its historical median of 21.51. Over the past decade, CSL's OCF Margin % has ranged from 18.82 to 35.28. According to the industry distribution chart, CSL ranks #183 out of 959 companies in the Biotechnology industry, placing it in the top 19.1%.
Is CSL's OCF Margin % too high?
CSL's current OCF Margin % of 16.09% is 25% below median its 10-year median of 21.51. Over the past 10 years, this metric has ranged from a low of 18.82 to a high of 35.28. Based on the distribution chart, CSL ranks #183 out of 959 companies in the Biotechnology industry, which is in the top quartile — a strong position relative to peers. Overall, CSL has a GF Score™ of 73/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does CSL's OCF Margin % compare to VRTX and REGN?
According to the Biotechnology industry distribution chart, CSL ranks #183 out of 959 companies for OCF Margin %. This places CSL in the top 19% of its industry — outperforming the majority of peers. Historically, CSL's own OCF Margin % has ranged from 18.82 to 35.28 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good OCF Margin % for a Biotechnology company?
A good OCF Margin % depends on the Biotechnology industry context. However, OCF Margin % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high OCF Margin % mean?
A high OCF Margin % can signal that a stock is expensive relative to its fundamentals. OCF Margin is the ratio of Cash Flow from Operations to Total Revenue. View historical data on CSL and its competitors. CSL's current OCF Margin % is 16.09%, which is 25% below median its own 10-year median of 21.51. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is CSL stock overvalued right now?
Based on GuruFocus' analysis, CSL (HAM:CSJ) is currently considered Significantly Undervalued. The stock's GF Value™ is €170.71, compared to a current price of €68.23 — trading 60% below its estimated fair value. The current OCF Margin % is 16.09%, which is 25% below median its 10-year median of 21.51. CSL's overall GF Score™ is 73/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is OCF Margin % calculated?
OCF Margin % is calculated from a company's financial statements. For CSL (HAM:CSJ), the current OCF Margin % is 16.09% as of Dec. 2025. 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 CSL (HAM:CSJ) Overvalued in 2026?
Based on GuruFocus' analysis, CSL stock appears to be undervalued.
The current stock price of €68.23 is trading 60% below its estimated GF Value™ of €170.71.
GuruFocus considers CSL to be Significantly Undervalued.
Key valuation signals for HAM:CSJ:
OCF Margin %: 16.09% (25% below median its 10-year median of 21.51)
GF Value™: €170.71 vs. price of €68.23 (60% below fair value)
No single metric tells the full story. See the HAM:CSJ stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
CSL is one of the largest global biotech companies and has three main segments. CSL Behring either uses plasma-derived proteins or recombinants to treat conditions including immunodeficiencies, bleeding disorders, and neurological indications. CSL Seqirus is the world's second-largest influenza vaccination business and was acquired in fiscal 2016. CSL Vifor is an iron deficiency and nephrology business and was acquired in fiscal 2023. CSL has a strong R&D track record, and the product portfolio and pipeline include nonplasma products as the firm continues to broaden its scope. Originally formed in Australia as a government-owned entity, CSL now earns roughly half its revenue in North America and a quarter in Europe.
73GF Score
Get the complete analysis for HAM:CSJ
OCF Margin % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
HAM:CSJ has been successfully added to your 
