First Interstate BancSystem, Inc. (FIBK)
NASDAQ: FIBK · Real-Time Price · USD
34.74
-0.78 (-2.20%)
At close: Oct 7, 2026, 4:00 PM EDT
34.59
-0.15 (-0.43%)
Pre-market: Oct 8, 2026, 8:25 AM EDT

FIBK Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Oct 7, 202635.2435.2934.5534.7434.74-2.20%869,249
Oct 6, 202635.6235.9935.4035.5235.52-0.28%1,218,180
Oct 5, 202636.0736.0735.5135.6235.62-1.06%2,214,598
Oct 2, 202636.1136.4835.9236.0036.000.64%1,238,284
Oct 1, 202635.5735.9234.8735.7735.770.08%1,354,150
Sep 30, 202635.9936.2835.4435.7435.74-0.72%1,015,773
Sep 29, 202636.6236.6935.9236.0036.00-0.91%1,383,890
Sep 28, 202636.7336.7436.3036.3336.33-1.57%1,026,825
Sep 25, 202636.6637.1636.6536.9136.911.10%1,646,962
Sep 24, 202636.0236.6336.0236.5136.511.36%1,031,520
Sep 23, 202636.3336.6236.0236.0236.02-1.42%1,062,138
Sep 22, 202636.9637.1336.5436.5436.54-0.79%1,211,764
Sep 21, 202637.4137.6236.8236.8336.83-1.39%1,156,942
Sep 18, 202637.1137.5036.7637.3537.350.51%4,018,246
Sep 17, 202637.2337.5537.0437.1637.160.65%1,114,597
Sep 16, 202637.4637.7036.5736.9236.92-1.44%1,977,026
Sep 15, 202637.2137.6837.2137.4637.460.43%1,049,913
Sep 14, 202636.9237.4636.9137.3037.301.03%946,807
Sep 11, 202637.2037.3736.5636.9236.920.11%725,396
Sep 10, 202636.7536.9836.4336.8836.880.16%1,074,887
Sep 9, 202637.0937.4436.7236.8236.82-1.07%1,016,714
Sep 8, 202637.7337.8637.1937.2237.22-1.66%804,889
Sep 4, 202637.5137.9437.4537.8537.850.99%868,156
Sep 3, 202637.1937.7737.1937.4837.480.86%1,066,528
Sep 2, 202636.5337.3936.3437.1637.162.33%891,970
Sep 1, 202636.6837.2036.1636.3236.32-1.34%1,216,083
Aug 31, 202637.0737.2836.6336.8136.81-0.62%792,142
Aug 28, 202637.2737.6236.9837.0437.04-0.62%801,048
Aug 27, 202636.9237.2836.7137.2737.270.19%596,781
Aug 26, 202637.2037.4236.9237.2037.200.38%632,320
Aug 25, 202637.3737.3836.8837.0637.06-0.48%749,638
Aug 24, 202637.4637.8937.1937.2437.24-0.67%1,007,427
Aug 21, 202638.2538.3337.4537.4937.49-0.85%1,075,571
Aug 20, 202637.7837.9837.5537.8137.81-0.08%837,033
Aug 19, 202638.4638.4937.6937.8437.84-1.61%886,910
Aug 18, 202638.8939.0438.3838.4638.46-1.11%894,720
Aug 17, 202639.0339.4638.8938.8938.89-0.71%903,528
Aug 14, 202638.7539.2738.7539.1739.170.85%884,389
Aug 13, 202638.8139.0938.6938.8438.840.80%688,183
Aug 12, 202638.3038.6437.8838.5338.531.34%975,099
Aug 11, 202637.6338.1337.4138.0238.021.71%930,559
Aug 10, 202637.2237.5637.0437.3837.38-0.40%943,364
Aug 7, 202637.3237.7737.1737.5337.530.29%878,865
Aug 6, 202638.1738.3237.3937.4237.42-1.71%1,120,982
Aug 5, 202638.5238.5338.0338.0738.07-0.86%1,095,849
Aug 4, 202638.1038.8437.9938.4038.400.79%1,585,673
Aug 3, 202637.8038.6237.8038.5738.101.45%1,119,475
Jul 31, 202638.6538.7537.9438.0237.56-1.14%1,015,606
Jul 30, 202638.0438.6737.9538.4637.991.88%1,103,258
Jul 29, 202638.0838.1137.5437.7537.29-0.89%1,480,762