FIBK Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Sep 17, 2026	37.23	37.55	37.04	37.16	37.16	0.65%	1,114,595
Sep 16, 2026	37.46	37.70	36.57	36.92	36.92	-1.44%	1,977,023
Sep 15, 2026	37.21	37.68	37.21	37.46	37.46	0.43%	1,049,913
Sep 14, 2026	36.92	37.46	36.91	37.30	37.30	1.03%	946,807
Sep 11, 2026	37.20	37.37	36.56	36.92	36.92	0.11%	725,396
Sep 10, 2026	36.75	36.98	36.43	36.88	36.88	0.16%	1,074,887
Sep 9, 2026	37.09	37.44	36.72	36.82	36.82	-1.07%	1,016,714
Sep 8, 2026	37.73	37.86	37.19	37.22	37.22	-1.66%	804,889
Sep 4, 2026	37.51	37.94	37.45	37.85	37.85	0.99%	868,156
Sep 3, 2026	37.19	37.77	37.19	37.48	37.48	0.86%	1,066,528
Sep 2, 2026	36.53	37.39	36.34	37.16	37.16	2.33%	891,970
Sep 1, 2026	36.68	37.20	36.16	36.32	36.32	-1.34%	1,216,083
Aug 31, 2026	37.07	37.28	36.63	36.81	36.81	-0.62%	792,142
Aug 28, 2026	37.27	37.62	36.98	37.04	37.04	-0.62%	801,048
Aug 27, 2026	36.92	37.28	36.71	37.27	37.27	0.19%	596,781
Aug 26, 2026	37.20	37.42	36.92	37.20	37.20	0.38%	632,320
Aug 25, 2026	37.37	37.38	36.88	37.06	37.06	-0.48%	749,638
Aug 24, 2026	37.46	37.89	37.19	37.24	37.24	-0.67%	1,007,427
Aug 21, 2026	38.25	38.33	37.45	37.49	37.49	-0.85%	1,075,571
Aug 20, 2026	37.78	37.98	37.55	37.81	37.81	-0.08%	837,033
Aug 19, 2026	38.46	38.49	37.69	37.84	37.84	-1.61%	886,910
Aug 18, 2026	38.89	39.04	38.38	38.46	38.46	-1.11%	894,720
Aug 17, 2026	39.03	39.46	38.89	38.89	38.89	-0.71%	903,528
Aug 14, 2026	38.75	39.27	38.75	39.17	39.17	0.85%	884,389
Aug 13, 2026	38.81	39.09	38.69	38.84	38.84	0.80%	688,183
Aug 12, 2026	38.30	38.64	37.88	38.53	38.53	1.34%	975,099
Aug 11, 2026	37.63	38.13	37.41	38.02	38.02	1.71%	930,559
Aug 10, 2026	37.22	37.56	37.04	37.38	37.38	-0.40%	943,364
Aug 7, 2026	37.32	37.77	37.17	37.53	37.53	0.29%	878,865
Aug 6, 2026	38.17	38.32	37.39	37.42	37.42	-1.71%	1,120,982
Aug 5, 2026	38.52	38.53	38.03	38.07	38.07	-0.86%	1,095,849
Aug 4, 2026	38.10	38.84	37.99	38.40	38.40	0.79%	1,585,673
Aug 3, 2026	37.80	38.62	37.80	38.57	38.10	1.45%	1,119,475
Jul 31, 2026	38.65	38.75	37.94	38.02	37.56	-1.14%	1,015,606
Jul 30, 2026	38.04	38.67	37.95	38.46	37.99	1.88%	1,103,258
Jul 29, 2026	38.08	38.11	37.54	37.75	37.29	-0.89%	1,480,762
Jul 28, 2026	38.00	38.42	37.76	38.09	37.63	0.87%	2,118,138
Jul 27, 2026	38.28	38.66	37.74	37.76	37.30	-0.94%	1,599,417
Jul 24, 2026	37.68	38.52	37.54	38.12	37.66	0.05%	1,996,797
Jul 23, 2026	37.90	38.10	37.59	38.10	37.64	-0.76%	1,759,266
Jul 22, 2026	38.94	38.94	38.29	38.39	37.92	-1.49%	821,509
Jul 21, 2026	38.52	38.98	38.18	38.97	38.50	1.09%	987,502
Jul 20, 2026	39.24	39.25	38.47	38.55	38.08	-1.61%	918,327
Jul 17, 2026	39.83	39.94	38.86	39.18	38.70	-2.59%	1,659,657
Jul 16, 2026	39.36	40.60	39.00	40.22	39.73	2.21%	1,910,171
Jul 15, 2026	39.13	40.06	38.96	39.35	38.87	1.05%	1,660,513
Jul 14, 2026	38.83	39.26	38.74	38.94	38.47	0.28%	897,822
Jul 13, 2026	38.94	39.05	38.58	38.83	38.36	-0.05%	887,851
Jul 10, 2026	39.05	39.25	38.69	38.85	38.38	-0.15%	629,556
Jul 9, 2026	38.38	39.21	38.38	38.91	38.44	1.73%	754,964