First Interstate BancSystem: Analysts May Be Too Pessimistic Going Into 2026

First Interstate BancSystem (FIBK) reported stronger Q2 2025 earnings, driven by lower deposit costs and rising yields on maturing assets. The bank's net interest margin is projected to expand further into 2026, even with anticipated Fed rate cuts, leading one analyst to estimate 2026 EPS of $2.85/share and issue a Buy rating based on a below-sector 10x forward P/E multiple. Key risks include the bank's significant concentration in real estate financing and the potential for ongoing deposit losses.

Analysis

First Interstate BancSystem (FIBK) demonstrated improved profitability in its Q2 2025 results, driven by reduced deposit costs and rising yields from its maturing loan and securities portfolio. The bank's forward outlook appears robust, with projections for its net interest margin (NIM) to continue expanding into 2026, a notable expectation given the anticipated 1% in Federal Reserve rate cuts by July of that year. This operational strength supports an analyst's forecast of $2.85 in earnings per share for 2026. The investment thesis is further bolstered by a valuation argument, as the stock trades at a 10x forward P/E multiple, which is cited as being below the sector average. However, investors must weigh these positive factors against significant risks, namely the bank's high concentration in real estate financing and the potential for continued deposit losses.

Key Decisions for Investors

• Investors may consider the stock's potential for appreciation based on the analyst's 2026 EPS forecast of $2.85 and its current valuation at a 10x forward P/E multiple, which is noted as being below the sector average.
• It is prudent to closely monitor the bank's high concentration in real estate financing, as any regional downturn could disproportionately impact asset quality and profitability.
• Key performance indicators to watch include deposit flows and the net interest margin trajectory, especially in the context of the forecasted 1% Fed rate cuts, to validate the analyst's bullish assumptions.