Isabella Bank (FRA:358) Net Interest Margin (Bank Only) %: 3.33% (As of Mar. 2026)

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FRA:358 Isabella Bank Corp FRA:358
64 GF Score
Price €30.60
GF Value €21.95
! 3 Warning Signs
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What is Isabella Bank Net Interest Margin (Bank Only) %?

Isabella Bank FRA:358 -1.92% 64 Net Interest Margin (Bank Only) % is 3.33% as of Mar. 2026. GuruFocus rates FRA:358 with a GF Score™ of 64/100 and a GF Value™ of €21.95. The stock has 3 warning signs investors should review.

Net Interest Margin (Bank Only) % is a measure of the difference between the interest income generated by banks or other financial institutions and the amount of interest paid out to their lenders (for example, deposits), relative to the amount of their interest-earning assets. It is usually calculated as a percentage of what the financial institution earns on loans in a time period and other assets minus the interest paid on borrowed funds divided by the average amount of the assets on which it earned income in that time period (the average earning assets).

GuruFocus calculates Net Interest Margin (Bank Only) % as Net Interest Income (for Banks) divided by its average earning assets. Isabella Bank's annualized Net Interest Income (for Banks) for the quarter that ended in Mar. 2026 was €67.53 Mil. Isabella Bank's average earning assets for the quarter that ended in Mar. 2026 was €2,029.44 Mil. Therefore, Isabella Bank's annualized Net Interest Margin (Bank Only) % for the quarter that ended in Mar. 2026 was 3.33%.


Isabella Bank  (FRA:358) Net Interest Margin (Bank Only) % Explanation

The negative value of Net Interest Margin (Bank Only) % mean the firm pays more interest for its debt than the interest revenue generated from its investment.


Isabella Bank Net Interest Margin (Bank Only) % Related Terms


Isabella Bank Net Interest Margin (Bank Only) % Historical Data

* Premium members only.

The historical data trend for Isabella Bank's Net Interest Margin (Bank Only) % 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.

Isabella Bank Net Interest Margin (Bank Only) % Chart

Isabella Bank Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Net Interest Margin (Bank Only) %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 3.11 3.31 3.12 2.97 3.19

Isabella Bank Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Net Interest Margin (Bank Only) % 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 3.08 3.22 3.39 3.39 3.33

FRA:358 vs : Net Interest Margin (Bank Only) % Comparison

For the Banks - Regional subindustry, Isabella Bank's Net Interest Margin (Bank Only) %, along with its competitors' market caps and Net Interest Margin (Bank Only) % 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.


Isabella Bank Net Interest Margin (Bank Only) % vs Banks Industry

For the Banks industry and Financial Services sector, Isabella Bank's Net Interest Margin (Bank Only) % distribution charts can be found below:

* The bar in red indicates where Isabella Bank's Net Interest Margin (Bank Only) % falls into.


FRA:358
64GF Score
Isabella Bank Corp FRA:358
Net Interest Margin (Bank Only) % is just one metric. See GF Score™, valuation, warning signs, and more.
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Isabella Bank Net Interest Margin (Bank Only) % Calculation

Net Interest Margin (Bank Only) % (NIM) is a measure of the difference between the interest income generated by banks or other financial institutions and the amount of interest paid out to their lenders (for example, deposits), relative to the amount of their interest-earning assets. It is usually calculated as a percentage of what the financial institution earns on loans in a time period and other assets minus the interest paid on borrowed funds divided by the average amount of the assets on which it earned income in that time period (the average earning assets).

Isabella Bank's annualized Net Interest Margin (Bank Only) % for the fiscal year that ended in Dec. 2025 is calculated as

Net Interest Margin (Bank Only) %(A: Dec. 2025 )
=(Interest Income + Interest Expense)/Average Earning Assets
=Net Interest Income (for Banks)/( (Earning Assets (A: Dec. 2024 ) + Earning Assets (A: Dec. 2025 ))/ count )
=62.544/( (1899.947 + 2020.851)/ 2 )
=62.544/1960.399
=3.19 %

where

Earning Assets(A: Dec. 2024 )
=Money Market Investments + Net Loan + Securities & Investments
=0 + 1410.918 + 489.029
=1899.947

Earning Assets(A: Dec. 2025 )
=Money Market Investments + Net Loan + Securities & Investments
=0 + 1523.06 + 497.791
=2020.851

Isabella Bank's annualized Net Interest Margin (Bank Only) % for the quarter that ended in Mar. 2026 is calculated as

Net Interest Margin (Bank Only) %(Q: Mar. 2026 )
=(Interest Income + Interest Expense)/Average Earning Assets
=Net Interest Income (for Banks)/( (Earning Assets (Q: Dec. 2025 ) + Earning Assets (Q: Mar. 2026 ))/ count )
=67.528/( (2020.851 + 2038.031)/ 2 )
=67.528/2029.441
=3.33 %

where

Earning Assets(Q: Dec. 2025 )
=Money Market Investments + Net Loan + Securities & Investments
=0 + 1523.06 + 497.791
=2020.851

Earning Assets(Q: Mar. 2026 )
=Money Market Investments + Net Loan + Securities & Investments
=0 + 1545.287 + 492.744
=2038.031

* 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.

Note: Interest Expense is the negative value.

In the calculation of annual Net Interest Margin (Bank Only) %, the Net Interest Income (for Banks) of the last fiscal year and the average earning assets over the fiscal year are used. In calculating the quarterly data, the Net Interest Income (for Banks) data used here is four times the quarterly (Mar. 2026) net interest income data. Net Interest Margin (Bank Only) % is displayed in the 30-year financial page for Banks.

What does a Net Interest Margin (Bank Only) % of 3.33% mean?
Isabella Bank (FRA:358) has a Net Interest Margin (Bank Only) % of 3.33% as of Mar. 2026. Net interest margin is the ratio of a bank's net interest income to its average two-period earning assets. View historical data on Isabella Bank and its competitors.
Is Isabella Bank's Net Interest Margin (Bank Only) % too high?
Isabella Bank's current Net Interest Margin (Bank Only) % is 3.33%. Overall, Isabella Bank has a GF Score™ of 64/100, reflecting its overall financial health beyond just this single metric.
How does Isabella Bank's Net Interest Margin (Bank Only) % compare to ?
Isabella Bank's Net Interest Margin (Bank Only) % of 3.33% can be compared against companies in the Banks industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Net Interest Margin (Bank Only) % for a Banks company?
A good Net Interest Margin (Bank Only) % depends on the Banks industry context. However, Net Interest Margin (Bank Only) % 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 Net Interest Margin (Bank Only) % mean?
A high Net Interest Margin (Bank Only) % can signal that a stock is expensive relative to its fundamentals. Net interest margin is the ratio of a bank's net interest income to its average two-period earning assets. View historical data on Isabella Bank and its competitors. Isabella Bank's current Net Interest Margin (Bank Only) % is 3.33%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Isabella Bank stock overvalued right now?
Isabella Bank (FRA:358) has a current Net Interest Margin (Bank Only) % of 3.33%. The stock's GF Value™ is €21.95, compared to a current price of €30.60 — trading 39.4% above its estimated fair value. The current Net Interest Margin (Bank Only) % is 3.33%. Isabella Bank's overall GF Score™ is 64/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Net Interest Margin (Bank Only) % calculated?
Net Interest Margin (Bank Only) % is calculated from a company's financial statements. For Isabella Bank (FRA:358), the current Net Interest Margin (Bank Only) % is 3.33% as of Mar. 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 Isabella Bank (FRA:358) Overvalued in 2026?

Based on GuruFocus' analysis, Isabella Bank stock appears to be overvalued. The current stock price of €30.60 is trading 39.4% above its estimated GF Value™ of €21.95.

Key valuation signals for FRA:358:

  • Net Interest Margin (Bank Only) %: 3.33%
  • GF Value™: €21.95 vs. price of €30.60 (39.4% above fair value)
  • GF Score™: 64/100 with 3 warning signs

No single metric tells the full story. See the FRA:358 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Isabella Bank Business Description

Comparable Companies
Other Exchanges ISBA:USA
Address 401 North Main Street, Mount Pleasant, MI, USA, 48858
Isabella Bank Corp is a U.S based financial service holding company. It offers banking services to businesses, institutions, and individuals. The company's lending activities include loans made according to commercial and agricultural operating and real estate purposes, residential real estate loans, and consumer loans. Deposit services offered include checking accounts, savings accounts, certificates of deposit, direct deposits, cash management services, mobile and internet banking, electronic bill pay services and automated teller machines. It also offers full-service trust and brokerage services.
64GF Score

Get the complete analysis for FRA:358

Net Interest Margin (Bank Only) % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€30.60
Price
€21.95
GF Value