First Interstate BancSystem, Inc. (FIBK) Fair Value 2026

FIBK · Banks - Regional ·

By CirclFi Research Team · Data from SEC EDGAR, FRED & GDELT

Quality Score

8.5 /10

32 fundamental signals · 6 models active

Value Trap Risk

SAFE (18/100)

Quick Summary — As of 2026-08-27, First Interstate BancSystem, Inc. (FIBK) trades at $37.27, versus a $35.04 median fair value across its 6 active models — 6.0% below the current price. QOC: 8.5/10. Value Trap Risk: 18/100 (SAFE). 6/13 models active.

Key Facts

Ticker
FIBK
Price
$37.27
Quality Score
8.5/10
Value Trap Risk
18/100
Models Active
6/13
Last Updated
Strength: Markov DDM suggests +3.5% upside with 56% confidence
Risk: Majority of models suggest overvaluation

Is First Interstate BancSystem, Inc. (FIBK) Undervalued or Overvalued in 2026?

According to CirclFi’s 6-model valuation engine, First Interstate BancSystem, Inc. (FIBK) appears fairly valued as of : the median of 6 independent fair value estimates is $35.04, within 6.0% of the current price of $37.27. Estimates range from $24.38 to $43.80. FIBK scores 8.5/10 on fundamental quality and 18/100 on value-trap risk.

For context, the median US equity CirclFi rates trades at an implied -23.7% versus its own 13-model consensus, across 3,801 rated companies as of 2026-08-27. FIBK’s -6.0% gap is narrower than that market norm, and the Banks - Regional sector median is -22.0%. Full market index →

This verdict compares price to intrinsic value only — it is not a buy or sell rating. For the decision case (bull vs bear arguments, risk factors, peers), read Should You Buy First Interstate BancSystem, Inc. Stock in 2026? →

What Fair Value Does Each Model Give FIBK?

6 Intrinsic Value Models vs. Current Price ($37.27)

Core Models (Unlocked)
Model Fair Value Upside
Intrinsic · High Conviction
 $24.38 -34.6%
Ensemble · Medium Conviction
 $33.52 -10.1%
Intrinsic · High Conviction
 $38.59 +3.5%
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What Is FIBK's Fair Value Range?

Spread across 6 independent models · $24.38 to $43.80

CirclFi's 6 active models place First Interstate BancSystem, Inc. (FIBK) between $24.38 and $43.80 per share, a spread of 55% of the median. The median of that range — $35.04 — is the fair value CirclFi publishes for FIBK, against a current price of $37.27.

Low · EPVHigh · Regime Cross
$24.38median $35.04$43.80
Where the range comes from
Most bearish modelEarnings Power Value (EPV)$24.38
Most bullish modelRegime Cross-Sectional$43.80
Model agreement1 bullish · 3 bearishmoderate

A band of this width is typical. The methods agree on direction but weight growth, reinvestment and risk differently, so treat the median as a centre of gravity rather than a precise target.

Every figure above is one model's standalone output on FIBK, not a CirclFi price target. How each model works →

What Is First Interstate BancSystem, Inc. (FIBK) Worth in 2026?

According to the CirclFi Deep Alpha Valuation Engine, First Interstate BancSystem, Inc. presents a highly debated valuation profile at its current price of $37.27. The median intrinsic value is estimated at $35.04 (-6.0% median upside), masking a wide model spread between the 1 bullish models and 3 bearish models. Model dispersion is worth noting: Regime Cross targets $43.80 (+17.5%), versus EPV at $24.38 (-34.6%). This +52.1% range highlights the importance of multi-model analysis rather than relying on any single methodology.

What Do the Models Say About FIBK?

6 of 13 models are currently active for FIBK. Of these, 2 models suggest upside while 4 models suggest overvaluation. Taken together, their median fair value for FIBK is $35.04 — the figure CirclFi publishes as this stock's fair value. See which stocks rank higher →

How Does FIBK Rank in Banks - Regional?

Among 349 Banks - Regional stocks, FIBK ranks #50 by Quality of Company score. CirclFi's QOC score of 8.5/10 evaluates 32 fundamental signals. A score of 8.5 places FIBK in the top tier.

See all Most Undervalued Banks - Regional Stocks →

First Interstate BancSystem, Inc.'s positioning within the Banks - Regional segment means that return on tangible equity plays an outsized role in fundamental analysis. The sector's unique characteristics — including credit quality trends — shape both the opportunity set and risk profile.

Is FIBK a Value Trap?

CirclFi's Value Trap algorithm assigns FIBK a score of 18/100 (SAFE). This indicates minimal risk. Fundamentals are healthy. The score cross-references apparent undervaluation against fundamental deterioration signals. Browse lowest value-trap stocks →

Multi-Model Methodology

6 of 13 models are active for First Interstate BancSystem, Inc.. Moderate coverage provides meaningful perspective. Each model applies a fundamentally different valuation philosophy. See the complete methodology →

According to the CirclFi Quality of Company (QOC) framework, First Interstate BancSystem, Inc. earns a quality score of 8.5/10. This robust rating reflects the company's standing across 32 fundamental signals spanning profitability, growth consistency, balance sheet strength, and capital allocation efficiency.

The gap between the most bullish and bearish model spans +52.1% — demonstrating why single-model analysis is dangerous. Browse all stocks with 13-model coverage →

Data Sources & Confidence

Every FIBK valuation is built from SEC EDGAR XBRL filings — 700+ standardized financial tags. Macroeconomic context from FRED calibrates discount rates, while GDELT news sentiment feeds into our Sentiment SOTP model. All pipelines run daily. Read the complete data methodology →

Across FIBK's 6 active models, average confidence is 45%. Lower confidence may reflect limited history or high volatility.

CirclFi's output is a research starting point, not a buy/sell signal. All data updates daily. Read the full methodology →

This analysis is produced by the CirclFi Valuation Engine using quantitative models applied to SEC EDGAR filings, public market feeds, and FRED macroeconomic indicators. It is not financial advice.

Read the full investment analysis: Should You Buy First Interstate BancSystem, Inc. Stock in 2026? →

Bull case, bear case, risk factors & peer comparison — updated daily

Which Similar Banks - Regional Stocks Should You Also Analyze?

11 related Banks - Regional stocks with 13-model coverage

FCFFirst Commonwealth Financial CorporationQOC 8.5CBNKCapital Bancorp, Inc.QOC 8.5CIVBCivista Bancshares, Inc.QOC 8.5CASHPathward Financial, Inc.QOC 8.5NBTBNBT Bancorp Inc.QOC 8.5OVLYOak Valley BancorpQOC 8.5GBCIGlacier Bancorp, Inc.QOC 8.2NKSHNational Bankshares, Inc.QOC 7.8BLXBladex Inc.QOC 6.8ESQEsquire Financial Holdings, Inc.QOC 9.1PEBOPeoples Bancorp Inc.QOC 9.1

Read investment analysis: FCF · CBNK · CIVB · CASH · NBTB · OVLY · GBCI · NKSH · BLX · ESQ · PEBO

Which Other Stocks Have a Similar Quality Score to FIBK?

6 companies across all industries closest to FIBK’s Quality of Company score of 8.5/10.

LYTSLSI Industries Inc.QOC 8.5FELEFranklin Electric Co., Inc.QOC 8.5APGAPi Group CorporationQOC 8.5UMCUnited Microelectronics CorporationQOC 8.5MRVLMarvell Technology, Inc.QOC 8.5NVDANVIDIA CorporationQOC 10.0

Read investment analysis: LYTS · FELE · APG · UMC · MRVL · NVDA

Where Does FIBK Sit in CirclFi's Banks - Regional Rankings?

FIBK is ranked against every other Banks - Regional stock CirclFi covers in each of these screens.

See all Banks - Regional stocks ranked →

What Else Do Investors Ask About First Interstate BancSystem, Inc.’s Valuation?

What is First Interstate BancSystem, Inc.'s intrinsic value in 2026?

CirclFi puts First Interstate BancSystem, Inc. (FIBK)'s intrinsic value at $35.04 — the median of 6 independent model estimates as of 2026-08-27, ranging from $24.38 to $43.80. The Quality of Company score is 8.5/10 across 32 fundamental signals. All models use SEC EDGAR filings updated daily. See our methodology page for how each model works.

Is FIBK overvalued or undervalued right now?

At $37.27, 2 of 6 active models suggest FIBK may be undervalued, while 4 indicate potential overvaluation. The median of all 6 fair value estimates is $35.04, within 6.0% of the current price of $37.27 — a consensus view that FIBK is fairly valued. The assessment depends on which methodology best fits First Interstate BancSystem, Inc.'s business model in Banks - Regional.

What does a Quality of Company score of 8.5 mean for FIBK?

First Interstate BancSystem, Inc.'s QOC of 8.5/10 reflects 32 fundamental signals: profitability margins, revenue growth consistency, balance sheet leverage, free cash flow generation, and capital allocation efficiency. Scores above 7 indicate strong fundamentals and disciplined management.

How many valuation models does CirclFi run on FIBK?

CirclFi analyzes FIBK with 13 institutional-grade models daily: Bayesian DCF (Monte Carlo + jump-diffusion), EPV (Greenwald zero-growth), EROIC Spread (McKinsey reinvestment), First Chicago (3-scenario), Markov DDM (regime-switching), ML-RIV (machine learning residual income), Dynamic NAV (asset-based), PWERM (option-theoretic), Regime Cross-Sectional (relative), Sentiment SOTP (hybrid), CUCE Ensemble (meta-model), FTNN Topology (neural network), and RCMH-DCF (conditional regime). Currently 6 of 13 are active for this stock. Read the full methodology →

Which valuation models are most bullish and most bearish on FIBK?

Of the 6 models currently active on FIBK, Regime Cross-Sectional is the most bullish at $43.80 per share, and Earnings Power Value (EPV) is the most bearish at $24.38. CirclFi's published fair value for FIBK is the median of that range, $35.04, not either extreme. The gap between the two ends equals 55% of the median — a normal spread for a company of this profile. Browse stocks by value-trap risk →

Is FIBK a value trap in 2026?

First Interstate BancSystem, Inc.'s Value Trap score is 18/100 (SAFE). This low score indicates the current valuation is not artificially depressed by fundamental deterioration, suggesting genuine opportunity rather than a trap.

Cite this analysis — “According to CirclFi’s 6-model valuation engine, First Interstate BancSystem, Inc. (FIBK) has a median fair value of $35.04 — within 6.0% of the current price of $37.27 — as of 2026-08-27.” Source: circlfi.com/stock/FIBK/ · Methodology
Primary sources for this FIBK valuation
  • Financial statements: First Interstate BancSystem, Inc. 10-K and 10-Q filings on SEC EDGAR (CIK 0000860413) — 700+ standardized XBRL tags, published by the U.S. Securities and Exchange Commission.
  • Discount-rate inputs: FRED, Federal Reserve Bank of St. Louis — risk-free rates, VIX, yield curve, inflation.
  • News sentiment: The GDELT Project — global media tone, input to the Sentiment SOTP model.
  • Model definitions: CirclFi methodology — the published specification for all 13 models, including the academic sources each one implements.

Market data for FIBK as of ; valuations recomputed .

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