Understanding Today’s Interest Rate Risk Environment
By Steven Houle, CFA, FRM, Vice President of Asset Management, Chief Compliance Officer, Catalyst
Managing interest rate risk (IRR) feels more difficult than it used to. IRR has always been a core responsibility for credit union management, but what has changed is how quickly conditions can shift and how little margin for error exists when they do.
Over the past several years, credit union balance sheets have been exposed to:
Rapid rate increases
A sharp reversal in rate expectations
Uncertainty around the future path, timing, and volatility of rates
Each shift has forced institutions to reassess not only where risk exists, but how it is managed.
A Less Predictable Rate Environment
In prior cycles, rate changes tended to be gradual, directional, and easier to incorporate into long-term planning. Today’s environment has been different.
Rates can move quickly, pause unexpectedly, and reverse direction with little warning. Yield curves can flatten, invert, and steepen again in relatively short periods of time. As a result, precision matters more than prediction.
For credit unions, this means traditional assumptions around repricing, optionality, and member behavior are being tested more frequently and more severely.
Deposit Behavior Has Become a Bigger Variable
IRR does not exist in isolation. It is closely tied to liquidity and funding dynamics, particularly deposit behavior.
Many credit unions are navigating:
Faster repricing of nonmaturity shares
Increased competition for deposits
Greater sensitivity to rate differentials
These shifts make it more difficult to rely on historical beta assumptions and increase the importance of understanding how funding reacts under stress.
Asset Mix and Duration Still Matter — But With New Trade-Offs
On the asset side, many credit unions hold meaningful exposure to:
Long-term fixed-rate mortgage loans
Fixed-rate investments purchased during lower-rate environments
Adjustable-rate assets that reprice quickly in volatile conditions
Each of these assets serves a strategic purpose, but each also contributes differently to interest rate sensitivity, earnings volatility, and capital outcomes.
Managing these exposures often involves trade-offs between growth, earnings, liquidity, and risk.
The Strategic Shift: From Forecasting to Flexibility
As uncertainty has increased, many management teams have shifted their focus away from forecasting rates accurately and toward a different question: “How resilient is our balance sheet if rates move in ways we don’t expect?”
This shift reflects a broader evolution in interest rate risk management, moving away from directional positioning and toward structural resilience, and replacing static assumptions with more adaptable frameworks.
The goal is no longer to be “right” about rates. It is to be prepared.
Why This Conversation Matters Now
IRR touches nearly every aspect of a credit union’s financial performance, including:
Net interest margin
Earnings stability
Liquidity management
Capital strength
Growth capacity
In an environment of elevated uncertainty, how risk is managed becomes just as important as how much risk is taken.
This is why many credit unions are reassessing not only their exposure, but the tools and strategies they rely on to manage it.
Key Takeaway
Interest rate risk hasn’t changed. The environment has.
Today’s challenge is less about predicting what comes next and more about ensuring the balance sheet has flexibility, precision, and resilience to perform across a wide range of outcomes.
Understanding the environment is the first step. Choosing how to respond comes next.
Want to Go Deeper?
Watch Catalyst’s recent Derivatives Symposium on demand to explore how credit unions are approaching today’s rate environment. You can also sign up for our upcoming Derivatives Snapshot for timely insights and practical strategies.
Let’s Connect
If you’re evaluating your interest rate risk strategy, Catalyst is here to help. Contact us to start the conversation.
ABOUT CATALYST
Catalyst, one of the nation's largest corporate credit unions with approximately $6.5 billion in assets and over 1,200 member and client relationships, delivers innovative payment, asset management and liquidity solutions to credit unions nationwide. At Catalyst, we are passionate about bringing vision to life, helping credit unions grow and better serve their members every day. Discover why thousands of credit unions choose Catalyst: catalystcorp.org.
