While reports using immediate and permanent rate shocks fill a regulatory need, they are not very useful and don’t provide much insight for the bank or credit union. Rates change over time, and not all rates move by the same amount or, in some cases, in the same direction, so their impact on the balance sheet, income statement, and economic value of equity (EVE) can be difficult to discern.
As proof, consider how rates in the last 18 months did not move immediately and permanently by 100 bps or more; they moved over time. Financial institutions need to take into account different types of rate environments and the non-parallel, inverted, flattening, and steepening curves that can play out over two to three years.
For example, if my institution has a $1 million bottom line in a flat-rate environment and interest rates run up 20 or 30 bp over the course of a year, will I see what’s happening by running a one-year forecast? Not really. I need the ability to look out for two or three years to see what the full impact of those rate changes might be. What if the rates move differently than they have been? I need the ability to run forecasts for multiple environments using different yield-curve shapes and yield-curve rate changes.
What if rates fall? A one-year report, similarly, would not allow us to see the full impact of the rate changes on liquidity, capital, and various components of the income statement. Two- and three-year reports would be better.