FIBK Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Oct 28, 2026	37.88	38.20	37.27	37.37	37.37	-1.22%	327,180
Oct 27, 2026	37.93	37.98	37.41	37.83	37.83	0.40%	1,203,252
Oct 26, 2026	37.04	37.73	36.85	37.68	37.68	2.45%	1,641,841
Oct 23, 2026	36.37	37.11	36.20	36.78	36.78	-0.27%	1,585,636
Oct 22, 2026	35.54	36.95	35.54	36.88	36.88	3.39%	1,957,300
Oct 21, 2026	35.78	35.81	35.35	35.67	35.67	0.31%	787,081
Oct 20, 2026	34.73	35.73	34.73	35.56	35.56	2.39%	841,625
Oct 19, 2026	34.81	34.96	34.66	34.73	34.73	-0.26%	776,418
Oct 16, 2026	34.98	35.59	34.70	34.82	34.82	0.03%	864,535
Oct 15, 2026	34.49	35.00	34.32	34.81	34.81	1.28%	882,744
Oct 14, 2026	34.12	34.57	34.02	34.37	34.37	-0.98%	1,061,183
Oct 13, 2026	34.98	35.14	34.40	34.71	34.71	-0.23%	989,445
Oct 12, 2026	34.54	34.98	34.54	34.79	34.79	0.78%	836,090
Oct 9, 2026	34.78	34.88	34.52	34.52	34.52	-1.20%	750,423
Oct 8, 2026	34.51	35.03	34.29	34.94	34.94	0.58%	999,867
Oct 7, 2026	35.24	35.29	34.55	34.74	34.74	-2.20%	869,248
Oct 6, 2026	35.62	35.99	35.40	35.52	35.52	-0.28%	1,222,527
Oct 5, 2026	36.07	36.07	35.51	35.62	35.62	-1.06%	2,214,603
Oct 2, 2026	36.11	36.48	35.92	36.00	36.00	0.64%	1,238,284
Oct 1, 2026	35.57	35.92	34.87	35.77	35.77	0.08%	1,354,150
Sep 30, 2026	35.99	36.28	35.44	35.74	35.74	-0.72%	1,015,773
Sep 29, 2026	36.62	36.69	35.92	36.00	36.00	-0.91%	1,383,890
Sep 28, 2026	36.73	36.74	36.30	36.33	36.33	-1.57%	1,026,825
Sep 25, 2026	36.66	37.16	36.65	36.91	36.91	1.10%	1,646,962
Sep 24, 2026	36.02	36.63	36.02	36.51	36.51	1.36%	1,031,520
Sep 23, 2026	36.33	36.62	36.02	36.02	36.02	-1.42%	1,062,138
Sep 22, 2026	36.96	37.13	36.54	36.54	36.54	-0.79%	1,211,764
Sep 21, 2026	37.41	37.62	36.82	36.83	36.83	-1.39%	1,156,942
Sep 18, 2026	37.11	37.50	36.76	37.35	37.35	0.51%	4,018,246
Sep 17, 2026	37.23	37.55	37.04	37.16	37.16	0.65%	1,114,597
Sep 16, 2026	37.46	37.70	36.57	36.92	36.92	-1.44%	1,977,026
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