CSLCSLLY +2.19%73 Cyclically Adjusted PB Ratio is 3.78 as of Jul. 01, 2026, which is 79% below its 10-year median of 17.63. GuruFocus rates CSLLY with a GF Score™ of 73/100 and a GF Value™ of $51.03 (Significantly Undervalued). The stock has 7 warning signs investors should review. Among 701 Biotechnology companies, CSL ranks worse than 69.19% on this metric.
As of today (2026-07-01), CSL's current share price is $20.50. CSL's Cyclically Adjusted Book per Share for the fiscal year that ended in Jun25 was $5.43. CSL's Cyclically Adjusted PB Ratio for today is 3.78.
The historical rank and industry rank for CSL's Cyclically Adjusted PB Ratio or its related term are showing as below:
CSLLY'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 2.94 Med: 17.63 Max: 35.45
Current: 3.5
During the past 13 years, CSL's highest Cyclically Adjusted PB Ratio was 35.45. The lowest was 2.94. And the median was 17.63.
CSLLY's Cyclically Adjusted PB Ratio is ranked worse than 69.19% of 701
companies
in the Biotechnology industry
Industry Median: 1.55
vs CSLLY: 3.50
The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.
CSL's adjusted book value per share data of for the fiscal year that ended in Jun25 was $9.983. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is $5.43 for the trailing ten years ended in Jun25.
Shiller PE for Stocks: The True Measure of Stock Valuation
CSL (OTCPK:CSLLY) Cyclically Adjusted PB Ratio Explanation
Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.
CSL Cyclically Adjusted PB Ratio Related Terms
CSL Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for CSL's Cyclically Adjusted PB Ratio 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.
CSLLY vs VRTX, REGN, ALNY: Cyclically Adjusted PB Ratio Comparison
For the Biotechnology subindustry, CSL's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB Ratio 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 Cyclically Adjusted PB Ratio vs Biotechnology Industry
For the Biotechnology industry and Healthcare sector, CSL's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where CSL's Cyclically Adjusted PB Ratio falls into.
Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.
CSL's Cyclically Adjusted PB Ratio for today is calculated as
* 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.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
What does a Cyclically Adjusted PB Ratio of 3.78 mean?
CSL (CSLLY) has a Cyclically Adjusted PB Ratio of 3.78 as of Jul. 01, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on CSL and its competitors. This is 79% below median its historical median of 17.63. Over the past decade, CSL's Cyclically Adjusted PB Ratio has ranged from 2.94 to 35.45. According to the industry distribution chart, CSL ranks #485 out of 701 companies in the Biotechnology industry, placing it in the top 69.2%.
Is CSL's Cyclically Adjusted PB Ratio too high?
CSL's current Cyclically Adjusted PB Ratio of 3.78 is 79% below median its 10-year median of 17.63. Over the past 10 years, this metric has ranged from a low of 2.94 to a high of 35.45. The Biotechnology industry median Cyclically Adjusted PB Ratio is 1.55. CSL's value of 3.78 is 143.9% above this industry median. Based on the distribution chart, CSL ranks #485 out of 701 companies in the Biotechnology industry, which is below the industry midpoint. 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 Cyclically Adjusted PB Ratio compare to VRTX and REGN?
According to the Biotechnology industry distribution chart, CSL ranks #485 out of 701 companies for Cyclically Adjusted PB Ratio. This places CSL in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.55. CSL's value of 3.78 is 143.9% above this benchmark. Historically, CSL's own Cyclically Adjusted PB Ratio has ranged from 2.94 to 35.45 over the past decade. While the company's 10-year median is 17.63 vs. the industry median of 1.55, CSL 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 Cyclically Adjusted PB Ratio for a Biotechnology company?
The median Cyclically Adjusted PB Ratio among Biotechnology companies is 1.55, based on 701 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. CSL's current Cyclically Adjusted PB Ratio of 3.78 is 143.9% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on CSL and its competitors. For the Biotechnology industry, the median Cyclically Adjusted PB Ratio is 1.55 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. CSL's current Cyclically Adjusted PB Ratio is 3.78, which is 79% below median its own 10-year median of 17.63. 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 (CSLLY) is currently considered Significantly Undervalued. The stock's GF Value™ is $51.03, compared to a current price of $20.50 — trading 59.8% below its estimated fair value. The current Cyclically Adjusted PB Ratio is 3.78, which is 79% below median its 10-year median of 17.63 and 143.9% above the Biotechnology industry median of 1.55. 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 Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For CSL (CSLLY), the current Cyclically Adjusted PB Ratio is 3.78 as of Jul. 01, 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 CSL (CSLLY) Overvalued in 2026?
Based on GuruFocus' analysis, CSL stock appears to be undervalued.
The current stock price of $20.50 is trading 59.8% below its estimated GF Value™ of $51.03.
GuruFocus considers CSL to be Significantly Undervalued.
Key valuation signals for CSLLY:
Cyclically Adjusted PB Ratio: 3.78 (79% below median its 10-year median of 17.63)
GF Value™: $51.03 vs. price of $20.50 (59.8% below fair value)
Industry Position: 143.9% above the Biotechnology median (#485 of 701)
No single metric tells the full story. See the CSLLY 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
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Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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