OSBGF (OSB Group) Peter Lynch Fair Value: $10.89 (As of Jul. 12, 2026) — 2925% Above Median


OSBGF OSB Group PLC OSBGF
67 GF Score
Price $6.65
GF Value $6.46
Valuation Fairly Valued
! 1 Warning Sign
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What is OSB Group Peter Lynch Fair Value?

OSB Group OSBGF 67 Peter Lynch Fair Value is $10.89 as of Jul. 12, 2026, which is 2925% above its 10-year median of 0.36. GuruFocus rates OSBGF with a GF Score™ of 67/100 and a GF Value™ of $6.46 (Fairly Valued). The stock has 1 warning sign investors should review. Among 875 Banks companies, OSB Group ranks better than 76.91% on this metric.

Peter Lynch Fair Value applies to growing companies. The ideal range for the growth rate is between 10 - 20% a year. Peter Lynch thinks that the fair P/E value for a growth company equals its growth rate, that is PEG = 1. The earnings here is trailing twelve month (TTM) earnings. For non-bank companies, the growth rate we use is the average growth rate for EBITDA per share over the past 5 years. For Banks, the growth rate we use is the average growth rate for Book Value per share over the past 5 years. If 5-Year Growth Rate is greater than 25% a year, we use 25. If 5-Year Growth Rate is smaller than 5% a year, we do not calculate Peter Lynch Fair Value.

Here, as of today, OSB Group's PEG is 1. OSB Group's 5-Year TTM Book Value Growth Rate is 11.06. OSB Group's EPS without NRI for the trailing twelve months (TTM) ended in Dec. 2025 was $0.99. Therefore, the Peter Lynch Fair Value for today is $10.89.

As of today (2026-07-12), OSB Group's share price is $6.65. OSB Group's Peter Lynch fair value is $10.89. Therefore, OSB Group's Price to Peter Lynch Fair Value Ratio for today is 0.61.


The historical rank and industry rank for OSB Group's Peter Lynch Fair Value or its related term are showing as below:

OSBGF' s Price-to-Peter-Lynch-Fair-Value Range Over the Past 10 Years
Min: 0.24   Med: 0.36   Max: 0.75
Current: 0.65


During the past 13 years, the highest Price to Peter Lynch Fair Value Ratio of OSB Group was 0.75. The lowest was 0.24. And the median was 0.36.


OSBGF's Price-to-Peter-Lynch-Fair-Value is ranked better than
76.91% of 875 companies
in the Banks industry
Industry Median: 1.12 vs OSBGF: 0.65

Note: Please don't confuse Peter Lynch Fair Value with the value reached in Peter Lynch Chart.


OSB Group  (OTCPK:OSBGF) Peter Lynch Fair Value Explanation

Peter Lynch Fair Value applies to growing companies. The ideal range for the growth rate is between 10 - 20% a year.

Peter Lynch thinks that the fair P/E value for a growth company equals its growth rate, that is PEG = 1. The earnings here is trailing twelve month (TTM) earnings. For non-bank companies, the growth rate we use is the average growth rate for EBITDA per share over the past 5 years. For Banks, the growth rate we use is the average growth rate for Book Value per share over the past 5 years.

Please don't confuse Peter Lynch Fair Value with the value reached in Peter Lynch Chart. In Peter Lynch chart, a fixed P/E ratio of 15 is used to draw the Earnings Line. Therefore the value reached has a P/E ratio of 15. But in Peter Lynch Fair Value calculation, P/E equals to the growth rate of Book Value per share over the past 5 years, which is 11.06 instead of 15 in this case.

OSB Group's Price to Peter Lynch Fair Value Ratio for today is calculated as

Price to Peter Lynch Fair Value=Share Price/Peter Lynch Fair Value
=6.65/10.89
=0.61

* 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.


OSB Group Peter Lynch Fair Value Related Terms


OSB Group Peter Lynch Fair Value Historical Data

* Premium members only.

The historical data trend for OSB Group's Peter Lynch Fair Value 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.

OSB Group Peter Lynch Fair Value Chart

OSB Group Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Peter Lynch Fair Value
Get a 7-Day Free Trial Premium Member Only Premium Member Only 10.24 12.42 11.39 13.65 10.63

OSB Group Semi-Annual Data
Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun23 Dec23 Jun24 Dec24 Jun25 Dec25
Peter Lynch Fair Value 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 11.39 0.00 13.65 0.00 10.63

OSBGF vs RKT, FNMA, PFSI: Peter Lynch Fair Value Comparison

For the Mortgage Finance subindustry, OSB Group's Price-to-Peter-Lynch-Fair-Value, along with its competitors' market caps and Price-to-Peter-Lynch-Fair-Value 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.


OSB Group Price-to-Peter-Lynch-Fair-Value vs Banks Industry

For the Banks industry and Financial Services sector, OSB Group's Price-to-Peter-Lynch-Fair-Value distribution charts can be found below:

* The bar in red indicates where OSB Group's Price-to-Peter-Lynch-Fair-Value falls into.


OSBGF
67GF Score
OSB Group PLC OSBGF
Peter Lynch Fair Value is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

OSB Group Peter Lynch Fair Value Calculation

OSB Group's Peter Lynch Fair Value for today is calculated as

Peter Lynch Fair Value=PEG Ratio*5-Year TTM Book Value Growth Rate***EPS without NRI (TTM)
=1* 11.06 *0.985
=10.89

For company reported semi-annually, GuruFocus uses latest annual data as the TTM data. OSB Group's EPS without NRI for the trailing twelve months (TTM) ended in Dec. 2025 was $0.99.


* 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 be aware that the 5-Year TTM Book Value Growth Rate is calculated based on TTM data over the last 5 years. For quarterly reported companies, the TTM data is the latest quarter data. For companies that report semi-annually, annually, or do not have enough quarterly data, GuruFocus uses the annual data as the TTM data.

If 5-Year Earnings Growth Rate is greater than 25% a year, we use 25.

If 5-Year Earnings Growth Rate is smaller than 5% a year, we do not calculate Peter Lynch Fair Value.

Please note that we use the 5-year average growth rate of EBITDA per share as the growth rate for non-bank companies, as EBITDA growth is subject to less manipulations than net earnings per share. For banks, we use the 5-year average growth rate of Book Value per share as the growth rate. The reason is that EBITDA is not applicable to Banks and Book value is a relative important measurement for Banks. In the calculation, PEG=1 because Peter Lynch thinks that the fair P/E ratio of the growth stock is equal to its earnings growth rate.

Frequently Asked Questions Learn more about Peter Lynch Fair Value →
What does a Peter Lynch Fair Value of $10.89 mean?
OSB Group (OSBGF) has a Peter Lynch Fair Value of $10.89 as of Jul. 12, 2026. Peter Lynch Fair Value is the stock value based on a company's current earnings and five-year earnings growth, assuming a PEG of one. View historical data on OSB Group and its competitors. This is 2925% above median its historical median of 0.36. Over the past decade, OSB Group's Peter Lynch Fair Value has ranged from 0.24 to 0.75. According to the industry distribution chart, OSB Group ranks #202 out of 875 companies in the Banks industry, placing it in the top 23.1%.
Is OSB Group's Peter Lynch Fair Value too high?
OSB Group's current Peter Lynch Fair Value of $10.89 is 2925% above median its 10-year median of 0.36. Over the past 10 years, this metric has ranged from a low of 0.24 to a high of 0.75. The Banks industry median Peter Lynch Fair Value is 1.12. OSB Group's value of $10.89 is 872.3% above this industry median. Based on the distribution chart, OSB Group ranks #202 out of 875 companies in the Banks industry, which is in the top quartile — a strong position relative to peers. Overall, OSB Group has a GF Score™ of 67/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does OSB Group's Peter Lynch Fair Value compare to RKT and FNMA?
According to the Banks industry distribution chart, OSB Group ranks #202 out of 875 companies for Peter Lynch Fair Value. This places OSB Group in the top 23% of its industry — outperforming the majority of peers. The industry median Peter Lynch Fair Value is 1.12. OSB Group's value of $10.89 is 872.3% above this benchmark. Historically, OSB Group's own Peter Lynch Fair Value has ranged from 0.24 to 0.75 over the past decade. While the company's 10-year median is 0.36 vs. the industry median of 1.12, OSB Group 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 Peter Lynch Fair Value for a Banks company?
The median Peter Lynch Fair Value among Banks companies is 1.12, based on 875 companies in the industry. Companies in the top quartile (top 25%) have a Peter Lynch Fair Value significantly above this median, while those in the bottom quartile fall well below. However, Peter Lynch Fair Value should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. OSB Group's current Peter Lynch Fair Value of $10.89 is 872.3% 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 Peter Lynch Fair Value mean?
A high Peter Lynch Fair Value can signal that a stock is expensive relative to its fundamentals. Peter Lynch Fair Value is the stock value based on a company's current earnings and five-year earnings growth, assuming a PEG of one. View historical data on OSB Group and its competitors. For the Banks industry, the median Peter Lynch Fair Value is 1.12 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. OSB Group's current Peter Lynch Fair Value is $10.89, which is 2925% above median its own 10-year median of 0.36. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is OSB Group stock overvalued right now?
Based on GuruFocus' analysis, OSB Group (OSBGF) is currently considered Fairly Valued. The stock's GF Value™ is $6.46, compared to a current price of $6.65 — trading 2.9% above its estimated fair value. The current Peter Lynch Fair Value is $10.89, which is 2925% above median its 10-year median of 0.36 and 872.3% above the Banks industry median of 1.12. OSB Group's overall GF Score™ is 67/100 with 1 warning sign to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Peter Lynch Fair Value calculated?
Peter Lynch Fair Value is calculated from a company's financial statements. For OSB Group (OSBGF), the current Peter Lynch Fair Value is $10.89 as of Jul. 12, 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 OSB Group (OSBGF) Overvalued in 2026?

Based on GuruFocus' analysis, OSB Group stock appears to be overvalued. The current stock price of $6.65 is trading 2.9% above its estimated GF Value™ of $6.46. GuruFocus considers OSB Group to be Fairly Valued.

Key valuation signals for OSBGF:

  • Peter Lynch Fair Value: $10.89 (2925% above median its 10-year median of 0.36)
  • GF Value™: $6.46 vs. price of $6.65 (2.9% above fair value)
  • GF Score™: 67/100 with 1 warning sign
  • Industry Position: 872.3% above the Banks median (#202 of 875)

No single metric tells the full story. See the OSBGF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


OSB Group Business Description

Other Exchanges OSBl:UKOSB:UK2UK:Germany
Address Quayside, OSB House, Chatham Maritime, Chatham, GBR, ME4 4QZ
OSB Group PLC is a specialist mortgage lender, focused on selected sub-segments of the mortgage market. Its lending business is supported by various funding platforms, including retail savings deposits sourced under two brands: Kent Reliance and Charter Savings Bank (CSB), securitisation platforms, debt issuance, and Bank of England schemes. The Group operates under two segments: OneSavings Bank (OSB) and Charter Court Financial Services (CCFS). The majority of its revenue is generated from the OSB segment, which includes first charge residential mortgages for owner-occupiers, under shared ownership schemes, Buy-to-Let mortgages secured on residential property held for investment purposes by landlords, and commercial mortgages secured on commercial and semi-commercial properties.
67GF Score

Get the complete analysis for OSBGF

Peter Lynch Fair Value is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$6.65
Price
$6.46
GF Value