First Interstate BancSystem reported second-quarter 2026 net income of $83.9 million, or $0.87 per diluted share, up from $60.2 million, or $0.61 per diluted share, in the first quarter. Results included a $19.5 million gain from a branch transaction completed during the quarter. Net interest income rose 0.7% to $202.2 million, supported by a fully taxable equivalent net interest margin that expanded to 3.48%, the ninth consecutive quarter of margin expansion. Loans declined $447 million due to accelerated payoffs, while total deposits fell $441.7 million to $21.4 billion, with more than half of the decline tied to the branch sale. The company repurchased about 1.9 million shares for approximately $69 million and increased its cumulative repurchase authorization by $150 million to $450 million.
First Interstate BancSystem IncNet income rose to $83.9M from $60.2M, with margin expansion and share repurchases.