First Interstate BancSystem, Inc. - Class A (FIBK)
FIBK moved a median of -0.04% 30 minutes after news, and -0.19% by the close. How FIBK actually reacts to news — the realized, point-in-time move the market made, measured across 337 labeled events over the last three years with zero look-ahead.
FIBK’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | +0.04% | 53% | 336 |
| 30-min | -0.04% | 48% | 336 |
| 60-min | 0.00% | 50% | 337 |
| to close | -0.19% | 43% | 334 |
| Middle 50% of FIBK reactions | -0.47% to +0.61% |
|---|---|
| Median reaction (30-min) | -0.04% |
| Measured reactions | 337 |
Half of all First Interstate BancSystem, Inc. - Class A news events land between -0.47% and +0.61% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How FIBK reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Analyst upgrades | 25 | +0.09% | 68% | -0.39% |
| Analyst downgrades | 41 | +0.09% | 54% | +0.18% |
| Rating reiterations | 65 | +0.03% | 54% | -0.44% |
| Price-target raises | 21 | -0.14% | 38% | -0.73% |
| Price-target cuts | 10 | +0.07% | 60% | -0.23% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 1 further class was observed with fewer than 10 measured events and is not published. See how FIBK ranks against every other measured name →
That’s how FIBK usually reacts — get an email when it moves on news →Email me when FIBK moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to FIBK's baseline. Nothing else.
Recent FIBK events, each with its measured reaction.
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the FIBK section they belong to.
Where else FIBK is measured.
FIBK earnings → · Analyst actions → · SEC filings →
Other Financial Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Regional Management Corp. (RM) | 338 | 0.00% | 44% |
| Equity Bancshares, Inc. Class A (EQBK) | 337 | 0.00% | 49% |
| City Holding Company (CHCO) | 336 | -0.07% | 39% |
| Assurant, Inc. (AIZ) | 335 | +0.17% | 57% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Financial Services names, measured the same way →
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How the numbers are made.
How is First Interstate BancSystem, Inc. - Class A's median reaction calculated?
Every labeled FIBK news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 337 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 48% of FIBK's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does FIBK's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.