International Biotechnology Trust (LSE:IBT) Cyclically Adjusted PB Ratio: 1.29 (As of Jul. 27, 2026) — Near Median

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LSE:IBT International Biotechnology Trust PLC LSE:IBT
36 GF Score
Price £10.85
! 4 Warning Signs
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What is International Biotechnology Trust Cyclically Adjusted PB Ratio?

International Biotechnology Trust LSE:IBT +0.46% 36 Cyclically Adjusted PB Ratio is 1.29 as of Jul. 27, 2026, which is 2% above its 10-year median of 1.26. GuruFocus rates LSE:IBT with a GF Score™ of 36/100. The stock has 4 warning signs investors should review. Among 700 Biotechnology companies, International Biotechnology Trust ranks better than 55.43% on this metric.

As of today (2026-07-27), International Biotechnology Trust's current share price is £10.85. International Biotechnology Trust's Cyclically Adjusted Book per Share for the fiscal year that ended in Aug25 was £8.38. International Biotechnology Trust's Cyclically Adjusted PB Ratio for today is 1.29.

The historical rank and industry rank for International Biotechnology Trust's Cyclically Adjusted PB Ratio or its related term are showing as below:

LSE:IBT' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.63   Med: 1.26   Max: 2.07
Current: 1.29

During the past 13 years, International Biotechnology Trust's highest Cyclically Adjusted PB Ratio was 2.07. The lowest was 0.63. And the median was 1.26.

LSE:IBT's Cyclically Adjusted PB Ratio is ranked better than
55.43% of 700 companies
in the Biotechnology industry
Industry Median: 1.595 vs LSE:IBT: 1.29

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.

International Biotechnology Trust's adjusted book value per share data of for the fiscal year that ended in Aug25 was £7.395. 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 £8.38 for the trailing ten years ended in Aug25.

Shiller PE for Stocks: The True Measure of Stock Valuation


International Biotechnology Trust  (LSE:IBT) 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.


International Biotechnology Trust Cyclically Adjusted PB Ratio Related Terms


International Biotechnology Trust Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for International Biotechnology Trust'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.

International Biotechnology Trust Cyclically Adjusted PB Ratio Chart

International Biotechnology Trust Annual Data
Trend Aug16 Aug17 Aug18 Aug19 Aug20 Aug21 Aug22 Aug23 Aug24 Aug25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.21 0.94 0.84 0.84 0.80

International Biotechnology Trust Semi-Annual Data
Aug16 Feb17 Aug17 Feb18 Aug18 Feb19 Aug19 Feb20 Aug20 Feb21 Aug21 Feb22 Aug22 Feb23 Aug23 Feb24 Aug24 Feb25 Aug25 Feb26
Cyclically Adjusted PB Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 0.84 0.00 0.80 0.00

LSE:IBT vs VRTX, REGN, RVMD: Cyclically Adjusted PB Ratio Comparison

For the Biotechnology subindustry, International Biotechnology Trust'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.


International Biotechnology Trust Cyclically Adjusted PB Ratio vs Biotechnology Industry

For the Biotechnology industry and Healthcare sector, International Biotechnology Trust's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where International Biotechnology Trust's Cyclically Adjusted PB Ratio falls into.


LSE:IBT
36GF Score
International Biotechnology Trust PLC LSE:IBT
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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International Biotechnology Trust Cyclically Adjusted PB Ratio Calculation

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.

International Biotechnology Trust's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=10.85/8.38
=1.29

* 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.

International Biotechnology Trust's Cyclically Adjusted Book per Share for the fiscal year that ended in Aug25 is calculated as:

For example, International Biotechnology Trust's adjusted Book Value per Share data for the fiscal year that ended in Aug25 was:

Adj_Book=Book Value per Share/CPI of Aug25 (Change)*Current CPI (Aug25)
=7.395/138.9000*138.9000
=7.395

Current CPI (Aug25) = 138.9000.

International Biotechnology Trust Annual Data

Book Value per Share CPI Adj_Book
201608 5.751 101.200 7.893
201708 6.729 104.000 8.987
201808 6.990 106.500 9.117
201908 6.239 108.300 8.002
202008 7.386 108.800 9.429
202108 7.824 112.100 9.695
202208 6.972 121.800 7.951
202308 6.875 129.400 7.380
202408 7.663 133.400 7.979
202508 7.395 138.900 7.395

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

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 1.29 mean?
International Biotechnology Trust (LSE:IBT) has a Cyclically Adjusted PB Ratio of 1.29 as of Jul. 27, 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 International Biotechnology Trust and its competitors. This is near median its historical median of 1.26. Over the past decade, International Biotechnology Trust's Cyclically Adjusted PB Ratio has ranged from 0.63 to 2.07. According to the industry distribution chart, International Biotechnology Trust ranks #312 out of 700 companies in the Biotechnology industry, placing it in the top 44.6%.
Is International Biotechnology Trust's Cyclically Adjusted PB Ratio too high?
International Biotechnology Trust's current Cyclically Adjusted PB Ratio of 1.29 is near median its 10-year median of 1.26. Over the past 10 years, this metric has ranged from a low of 0.63 to a high of 2.07. The Biotechnology industry median Cyclically Adjusted PB Ratio is 1.60. International Biotechnology Trust's value of 1.29 is 19.1% below this industry median. Based on the distribution chart, International Biotechnology Trust ranks #312 out of 700 companies in the Biotechnology industry, which is above the industry midpoint. Overall, International Biotechnology Trust has a GF Score™ of 36/100, reflecting its overall financial health beyond just this single metric.
How does International Biotechnology Trust's Cyclically Adjusted PB Ratio compare to VRTX and REGN?
According to the Biotechnology industry distribution chart, International Biotechnology Trust ranks #312 out of 700 companies for Cyclically Adjusted PB Ratio. This puts International Biotechnology Trust in the upper half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.60. International Biotechnology Trust's value of 1.29 is 19.1% below this benchmark. Historically, International Biotechnology Trust's own Cyclically Adjusted PB Ratio has ranged from 0.63 to 2.07 over the past decade. While the company's 10-year median is 1.26 vs. the industry median of 1.60, International Biotechnology Trust has consistently been below 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 1.60, based on 700 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. International Biotechnology Trust's current Cyclically Adjusted PB Ratio of 1.29 is 19.1% below 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 International Biotechnology Trust and its competitors. For the Biotechnology industry, the median Cyclically Adjusted PB Ratio is 1.60 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. International Biotechnology Trust's current Cyclically Adjusted PB Ratio is 1.29, which is near median its own 10-year median of 1.26. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is International Biotechnology Trust stock overvalued right now?
International Biotechnology Trust (LSE:IBT) has a current Cyclically Adjusted PB Ratio of 1.29. The current Cyclically Adjusted PB Ratio is 1.29, which is near median its 10-year median of 1.26 and 19.1% below the Biotechnology industry median of 1.60. International Biotechnology Trust's overall GF Score™ is 36/100 with 4 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 International Biotechnology Trust (LSE:IBT), the current Cyclically Adjusted PB Ratio is 1.29 as of Jul. 27, 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.

International Biotechnology Trust Business Description

Address 1 London Wall Place, London, GBR, EC2Y 5AU
International Biotechnology Trust PLC is an investment trust company. It aims at achieving long-term capital growth by investing in biotechnology and other life sciences companies. It seeks to achieve its objective by investing in a diversified portfolio of companies which has good growth prospects. It focuses on investments in biotechnology companies which are engaged in on drug discovery and development, medical devices companies and healthcare services provider. The invests in various financial instruments such as equities, index-linked securities, debt securities, cash deposits, money market instruments ,and foreign currency exchange transactions. Its revenue comprises of dividend, interest and other income from investment made.
36GF 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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