Company: ISBA
Filing Date: 2025-11-10
Form Type: 10-Q
Source: 0000842517-25-000210
Chunk: 117

Company: ISABELLA BANK CORP
Filing Date: 2025-11-10
Form: 10-Q
Item: Part I, Item 2
Chunk 117
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 sheet structure and net interest income under a variety of scenarios that incorporate changes in interest rates, the shape of yield curves, interest rate relationships, loan prepayments, and funding sources. These forecasts are compared against net interest income projected in a stable interest rate environment. While many assets and liabilities reprice either at maturity or in accordance with their contractual terms, several balance sheet components demonstrate characteristics that require an evaluation to more accurately reflect their repricing behavior. Key assumptions in the simulation analysis include prepayments on loans, probable calls of investment securities, changes in market conditions, loan volumes and loan pricing, deposit sensitivity, and customer preferences. These assumptions are inherently uncertain as they are subject to fluctuation and revision in a dynamic rate environment. As a result, the simulation analysis cannot precisely forecast the impact of rising and falling interest rates on net interest income. Actual results will differ from simulated results due to many other factors, including changes in balance 

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sheet components, interest rate changes, changes in market conditions, and management strategies. We regularly monitor our projected net interest income sensitivity to ensure that it remains within established limits.

Gap analysis, the secondary method to measure IRR, measures the cash flows and/or the earliest repricing of our interest-bearing assets and liabilities.  This analysis is useful for measuring trends in the repricing characteristics of the balance sheet.  Significant assumptions are required in this process because of the embedded repricing options contained in assets and liabilities.  Residential real estate and consumer loans allow the borrower to repay the balance prior to maturity without penalty, while commercial and agricultural loans may have prepayment penalties.  The amount of prepayments is dependent upon many factors, including the interest rate of a given loan in comparison to the current offering rates, the level of home sales, and the overall availability of credit in the marketplace.  Generally, a decrease in interest rates will result in an increase in cash flows from these assets. Savings and demand accounts may generally be withdrawn on request without prior notice.  The timing of cash flows from these deposits is estimated based on historical experience.  Certificates of deposit have penalties that discourage early withdrawals.

Gap analysis is also utilized as a method to measure interest rate sensitivity. Interest rate sensitivity is determined by the amount of earning assets and interest-bearing liabilities repricing within a specific time period, and their relative sensitivity to a change in interest rates. We strive to achieve reasonable stability in the net interest margin through periods of changing interest rates.

We do not believe there has been a material change in the nature or categories of our primary market