First Interstate BancSystem Inc. Common Stock (DE) (FIBK)
Showing Closing Date Range from Apr 19 to Oct 16, 2026 compared to Oct 20, 2025 to Apr 18, 2026.
Compare Last 6 Months with Previous Period
Investor Relations:fibk.com
Current Period Close
$34.82
Apr 19, 2026 - Oct 16, 2026
Previous Period Close
$34.62
Oct 20, 2025 - Apr 18, 2026
Net Comparison Delta
+$0.20 (+0.58%)
Relative performance vs prior benchmark
Historical Quotes & Breakdown(125 dates)
| Current Date | Current Close | Previous Date | Previous Close | Delta (%) |
|---|---|---|---|---|
| Oct 16, 2026 | $34.82 | - | - | - |
| Oct 15, 2026 | $34.81 | Apr 17, 2026 | $34.62 | +0.55% |
| Oct 14, 2026 | $34.37 | Apr 16, 2026 | $33.77 | +1.78% |
| Oct 13, 2026 | $34.71 | Apr 15, 2026 | $34.07 | +1.88% |
| Oct 12, 2026 | $34.79 | Apr 14, 2026 | $34.25 | +1.58% |
| Oct 09, 2026 | $34.52 | Apr 13, 2026 | $34.44 | +0.23% |
| Oct 08, 2026 | $34.94 | Apr 10, 2026 | $34.03 | +2.67% |
| Oct 07, 2026 | $34.74 | Apr 09, 2026 | $34.27 | +1.37% |
| Oct 06, 2026 | $35.52 | Apr 08, 2026 | $34.04 | +4.35% |
| Oct 05, 2026 | $35.62 | Apr 07, 2026 | $33.22 | +7.22% |
| Oct 02, 2026 | $36.00 | Apr 06, 2026 | $33.85 | +6.35% |
| Sep 30, 2026 | $35.74 | Apr 02, 2026 | $33.48 | +6.75% |
| Sep 29, 2026 | $36.00 | Apr 01, 2026 | $33.55 | +7.30% |
| Sep 28, 2026 | $36.33 | Mar 31, 2026 | $33.40 | +8.77% |
| Sep 25, 2026 | $36.91 | Mar 30, 2026 | $32.82 | +12.46% |
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