FIBK - First Interstate Banc GAAP EPS of $0.36 beats by $0.67 revenue of $227.2M beats by $2.71M April, 28 2022 05:37 PM First Interstate BancSystem Inc. First Interstate Banc press release (NASDAQ:FIBK): Q1 GAAP EPS of $0.36 beats by $0.67. Revenue of $227.2M (+42.4% Y/Y) beats by $2.71M. For further details see: First Interstate Banc GAAP EPS of $0.36 beats by $0.67, revenue of $227.2M beats by $2.71M