First Interstate BancSystem, Inc. (FIBK)

Last Closing Price: 36.11 (2026-01-20)

Historical Volatility (Parkinson) (10-Day)

Historical Volatility (Parkinson): The past volatility of the security over the selected time frame, calculated using the high and low prices on each trading day.

First Interstate BancSystem, Inc. (FIBK) had 10-Day Historical Volatility (Parkinson) of 0.1977 for 2026-01-20.