OSB GroupOSBGF 67 WACC % is 27.24% as of Jun. 26, 2026, which is 74% above its 10-year median of 15.67. GuruFocus rates OSBGF with a GF Score™ of 67/100 and a GF Value™ of $6.49 (Fairly Valued). The stock has 1 warning sign investors should review. Among 1,543 Banks companies, OSB Group ranks worse than 90.86% on this metric.
As of today (2026-06-26), OSB Group's weighted average cost of capital is 27.24%%. OSB Group's ROIC % is 0.00% (calculated using TTM income statement data).
OSB Group earns returns that do not match up to its cost of capital. It will destroy value as it grows.
For a comprehensive WACC calculation, please access the WACC Calculator.
OSB Group (OTCPK:OSBGF) WACC % Explanation
Because it costs money to raise capital. A firm that generates higher ROIC % than it costs the company to raise the capital needed for that investment is earning excess returns. A firm that expects to continue generating positive excess returns on new investments in the future will see its value increase as growth increases, whereas a firm that earns returns that do not match up to its cost of capital will destroy value as it grows.
As of today, OSB Group's weighted average cost of capital is 27.24%%. OSB Group's ROIC % is 0.00% (calculated using TTM income statement data).
OSB Group earns returns that do not match up to its cost of capital. It will destroy value as it grows.
Be Aware
1. GuruFocus uses book value of debt (D) to do the calculation. It is simplified by adding latest one-year semi-annual average Short-Term Debt & Capital Lease Obligation and Long-Term Debt & Capital Lease Obligation together.
For companies that report quarterly, GuruFocus combines all of the most recent year's quarterly debt data from the beginning of the year to the year-end and calculates the average.
For companies that report semi-annually, GuruFocus combines all of the most recent year's semi-annual debt data from the start of the year to the year-end and calculates the average.
For companies that report annually, GuruFocus combines the beginning and ending annual debt data from the most recent year and then calculates the average.
2. The WACC formula discussed above does not include Preferred Stock. Please adjust if preferred stock is considered.
3. (Expected Return of the Market - Risk-Free Rate of Return) is also called market premium. GuruFocus requires market premium to be 6%.
4. GuruFocus uses the latest TTM Interest Expense divided by the latest one-year semi-annual average debt to get the simplified cost of debt.
Related Terms
OSB Group WACC % Historical Data
* Premium members only.
The historical data trend for OSB Group's WACC % 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 Mortgage Finance subindustry, OSB Group's WACC %, along with its competitors' market caps and WACC % 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 WACC % vs Banks Industry
For the Banks industry and Financial Services sector, OSB Group's WACC % distribution charts can be found below:
* The bar in red indicates where OSB Group's WACC % falls into.
The weighted average cost of capital (WACC) is the rate that a company is expected to pay on average to all its security holders to finance its assets. The WACC is commonly referred to as the firm's cost of capital. Generally speaking, a company's assets are financed by debt and equity. WACC is the average of the costs of these sources of financing, each of which is weighted by its respective use in the given situation. By taking a weighted average, we can see how much interest the company has to pay for every dollar it finances.
WACC
=
E
/
(E + D)
*
Cost of Equity
+
D
/
(E + D)
*
Cost of Debt
*
(1 - Tax Rate)
1. Weights:
Generally speaking, a company's assets are financed by debt and equity. We need to calculate the weight of equity and the weight of debt.
The market value of equity (E) is also called "Market Cap". As of today, OSB Group's market capitalization (E) is $2421.201 Mil.
The market value of debt is typically difficult to calculate, therefore, GuruFocus uses book value of debt (D) to do the calculation. It is simplified by adding the latest one-year semi-annual average Short-Term Debt & Capital Lease Obligation and Long-Term Debt & Capital Lease Obligation together. As of Dec. 2025, OSB Group's latest one-year semi-annual average Book Value of Debt (D) is $2599.0127 Mil.
a) weight of equity = E / (E + D) = 2421.201 / (2421.201 + 2599.0127) = 0.4823
b) weight of debt = D / (E + D) = 2599.0127 / (2421.201 + 2599.0127) = 0.5177
2. Cost of Equity:
GuruFocus uses Capital Asset Pricing Model (CAPM) to calculate the required rate of return. The formula is:
Cost of Equity = Risk-Free Rate of Return + Beta of Asset * (Expected Return of the Market - Risk-Free Rate of Return)
a) GuruFocus uses 10-Year Treasury Constant Maturity Rate as the risk-free rate. It is updated daily. The current risk-free rate is 4.9416%. Please go to Economic Indicators page for more information. Please note that we use the 10-Year Treasury Constant Maturity Rate of the country/region where the company is headquartered. If the data for that country/region is not available, then we will use the 10-Year Treasury Constant Maturity Rate of the United States as default.
b) Beta is the sensitivity of the expected excess asset returns to the expected excess market returns. OSB Group's beta is 0.0447.
c) (Expected Return of the Market - Risk-Free Rate of Return) is also called market premium. GuruFocus requires market premium to be 6%.
Cost of Equity = 4.9416% + 0.0447 * 6% = 5.2098%
3. Cost of Debt:
GuruFocus uses latest TTM Interest Expense divided by the latest one-year semi-annual average debt to get the simplified cost of debt.
As of Dec. 2025, OSB Group's interest expense (positive number) was $1662.002 Mil. Its total Book Value of Debt (D) is $2599.0127 Mil.
Cost of Debt = 1662.002 / 2599.0127 = 63.9474%.
4. Multiply by one minus TTM Tax Rate:
GuruFocus uses the most recent TTM Tax Expense divided by the most recent TTM Pre-Tax Income to calculate the tax rate. The calculated TTM tax rate is limited to between 0% and 100%. If the calculated tax rate is higher than 100%, it is set to 100%. If the calculated tax rate is less than 0%, it is set to 0%.
The latest calculated TTM Tax Rate = 130.497 / 515.541 = 25.31%.
OSB Group's Weighted Average Cost Of Capital (WACC) for Today is calculated as:
WACC
=
E / (E + D)
*
Cost of Equity
+
D / (E + D)
*
Cost of Debt
*
(1 - Tax Rate)
=
0.4823
*
5.2098%
+
0.5177
*
63.9474%
*
(1 - 25.31%)
=
27.24%
* 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 (OSBGF) has a WACC % of 27.24% as of Jun. 26, 2026. The weighted average cost of capital (WACC) is the average rate a company pays to finance assets. View historical data on OSB Group and its competitors. This is 74% above median its historical median of 15.67. Over the past decade, OSB Group's WACC % has ranged from 4.44 to 42.69. According to the industry distribution chart, OSB Group ranks #1402 out of 1543 companies in the Banks industry, placing it in the top 90.9%.
Is OSB Group's WACC % too high?
OSB Group's current WACC % of 27.24% is 74% above median its 10-year median of 15.67. Over the past 10 years, this metric has ranged from a low of 4.44 to a high of 42.69. The Banks industry median WACC % is 13.20. OSB Group's value of 27.24% is 106.4% above this industry median. Based on the distribution chart, OSB Group ranks #1402 out of 1543 companies in the Banks industry, which is in the bottom quartile 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 WACC % compare to RKT and FNMA?
According to the Banks industry distribution chart, OSB Group ranks #1402 out of 1543 companies for WACC %. This places OSB Group in the lower half of its industry. The industry median WACC % is 13.20. OSB Group's value of 27.24% is 106.4% above this benchmark. Historically, OSB Group's own WACC % has ranged from 4.44 to 42.69 over the past decade. While the company's 10-year median is 15.67 vs. the industry median of 13.20, 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 WACC % for a Banks company?
The median WACC % among Banks companies is 13.20, based on 1,543 companies in the industry. Companies in the top quartile (top 25%) have a WACC % significantly above this median, while those in the bottom quartile fall well below. However, WACC % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. OSB Group's current WACC % of 27.24% is 106.4% 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 WACC % mean?
A high WACC % can signal that a stock is expensive relative to its fundamentals. The weighted average cost of capital (WACC) is the average rate a company pays to finance assets. View historical data on OSB Group and its competitors. For the Banks industry, the median WACC % is 13.20 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. OSB Group's current WACC % is 27.24%, which is 74% above median its own 10-year median of 15.67. 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 $6.49, compared to a current price of $6.65 — trading 2.5% above its estimated fair value. The current WACC % is 27.24%, which is 74% above median its 10-year median of 15.67 and 106.4% above the Banks industry median of 13.20. 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 WACC % calculated?
WACC % is calculated from a company's financial statements. For OSB Group (OSBGF), the current WACC % is 27.24% 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 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 2.5% above its estimated GF Value™ of $6.49.
GuruFocus considers OSB Group to be Fairly Valued.
Key valuation signals for OSBGF:
WACC %: 27.24% (74% above median its 10-year median of 15.67)
GF Value™: $6.49 vs. price of $6.65 (2.5% above fair value)
Industry Position: 106.4% above the Banks median (#1402 of 1543)
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 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
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