First Interstate BancSystem (FIBK) reported Q1 earnings late Tuesday of $0.49 per diluted share, down from $0.57 a year earlier.
Analysts polled by FactSet expected $0.56.
Revenue for the quarter ended March 31, expressed as the sum of net interest income and non-interest income, was $247 million, compared with $242.2 million a year earlier.
Analysts surveyed by FactSet expected $253.9 million.
Shares of the company fell 5.3% in after-hours activity Tuesday.