First Interstate BancSystem, Inc. (FIBK) NASDAQ

Currency In USD

FIBK Historical Return

If you invested $1000 in First Interstate BancSystem, Inc. (FIBK) 10 years ago, it would be worth $1,919.61 as of August 23, 2026, based on a reinvested dividends scenario. Over the same period, a $1000 investment made 5 years ago would be worth $1,074.52, while $1000 invested 1 year ago would be worth $1,209.75. This corresponds to total returns of 91.96%, 7.45%, 20.97%, respectively, with annualized returns of 6.73%, 1.45%, 20.97%.

Custom investment amounts or purchase dates can also be explored using the Stoculator calculator. Past performance does not guarantee future results.

FIBK Historical Data

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
August 21, 2026	38.25	37.49	37.49	38.33	37.45	1.08M
August 20, 2026	37.78	37.81	37.81	37.98	37.55	837,032
August 19, 2026	38.46	37.84	37.84	38.49	37.69	886,908
August 18, 2026	38.89	38.46	38.46	39.04	38.38	894,720
August 17, 2026	39.03	38.89	38.89	39.46	38.89	903,527
August 14, 2026	38.75	39.17	39.17	39.27	38.75	883,788
August 13, 2026	38.81	38.84	38.84	39.09	38.69	688,182
August 12, 2026	38.3	38.53	38.53	38.64	37.88	975,098
August 11, 2026	37.63	38.02	38.02	38.13	37.41	930,558
August 10, 2026	37.22	37.38	37.38	37.56	37.04	943,362
August 07, 2026	37.32	37.53	37.53	37.77	37.17	878,864
August 06, 2026	38.17	37.42	37.42	38.32	37.39	1.12M
August 05, 2026	38.52	38.07	38.07	38.53	38.03	1.1M
August 04, 2026	38.1	38.4	38.4	38.84	37.99	1.59M
August 03, 2026	37.8	38.57	38.57	38.62	37.8	1.12M
July 31, 2026	38.65	38.02	38.02	38.75	37.94	1.02M
July 30, 2026	38.04	38.46	38.46	38.67	37.95	1.1M
July 29, 2026	38.08	37.75	37.75	38.11	37.54	1.48M
July 28, 2026	38	38.09	38.09	38.42	37.76	2.12M
July 27, 2026	38.28	37.76	37.76	38.66	37.74	1.6M
July 23, 2026	37.9	38.1	38.1	38.1	37.59	1.76M
July 22, 2026	38.94	38.39	38.39	38.94	38.29	821,505
July 21, 2026	38.52	38.97	38.97	38.98	38.18	987,502
July 20, 2026	39.24	38.55	38.55	39.25	38.47	918,325
July 17, 2026	39.83	39.18	39.18	39.94	38.85	1.66M
July 16, 2026	39.36	40.22	40.22	40.6	39	1.91M
July 15, 2026	39.13	39.35	39.35	40.06	38.96	1.66M
July 14, 2026	38.83	38.94	38.94	39.26	38.74	897,822
July 13, 2026	38.94	38.83	38.83	39.05	38.58	887,798
July 10, 2026	39.05	38.85	38.85	39.25	38.69	629,556
July 09, 2026	38.38	38.91	38.91	39.21	38.38	754,964
July 08, 2026	39.06	38.25	38.25	39.11	37.95	1.22M
July 07, 2026	39.5	39.16	39.16	39.54	39.08	848,586
July 06, 2026	38.95	39.38	39.38	39.4	38.92	797,908
July 02, 2026	39.5	39.15	39.15	39.65	38.69	896,860
July 01, 2026	38.5	39.26	39.26	39.33	38.34	1.28M
June 30, 2026	38.41	38.56	38.56	38.58	38.2	1.24M
June 29, 2026	38.33	38.59	38.59	38.61	37.87	979,029
June 26, 2026	38.51	38.63	38.63	38.75	38.26	2.42M
June 25, 2026	37.95	38.44	38.44	38.64	37.68	670,990
June 24, 2026	37.33	37.88	37.88	38.03	37.33	888,557
June 23, 2026	36.61	37.33	37.33	37.35	36.61	771,795
June 22, 2026	36.47	36.71	36.71	36.89	36.33	888,593
June 18, 2026	36	36.43	36.43	36.54	35.88	2.43M
June 17, 2026	36.35	35.64	35.64	36.79	35.14	1.49M
June 16, 2026	36.67	36.52	36.52	37.03	36.35	753,414
June 15, 2026	37.39	36.43	36.43	37.63	36.37	802,242
June 12, 2026	36.63	37.11	37.11	37.17	36.63	646,125
June 11, 2026	36.29	36.56	36.56	36.76	36.02	891,935
June 10, 2026	36.08	36.22	36.22	36.58	36.08	796,579
June 09, 2026	35.8	36.1	36.1	36.85	35.8	829,669
June 08, 2026	35.65	35.57	35.57	36.03	35.56	713,808
June 05, 2026	35.66	35.57	35.57	36.03	35.41	1.09M
June 04, 2026	34.89	35.72	35.72	35.74	34.86	853,250
June 03, 2026	35.04	34.32	34.32	35.14	34.26	1.09M
June 02, 2026	34.56	35.22	35.22	35.36	34.56	691,737
June 01, 2026	35.25	34.73	34.73	35.27	34.45	932,357
May 29, 2026	36.01	35.6	35.6	36.01	35.55	1.16M
May 28, 2026	35.62	35.6	35.6	35.63	35.04	862,947
May 27, 2026	35.86	35.66	35.66	36.05	35.42	1.11M