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First Interstate BancSystem's quarterly market cap
declined
from Dec. 2025 ($3,498 Mil) to Mar. 2026 ($3,255 Mil) but then
increased
from Mar. 2026 ($3,255 Mil) to Jun. 2026 ($3,684 Mil).
First Interstate BancSystem's annual market cap
increased
from Dec. 2023 ($3,196 Mil) to Dec. 2024 ($3,396 Mil) and
increased
from Dec. 2024 ($3,396 Mil) to Dec. 2025 ($3,498 Mil).
Enterprise Value is the theoretical takeover price. It is more comprehensive than market capitalization (market cap), which only includes common equity. Enterprise Value is calculated as the market cap plus debt and minority interest and preferred shares, minus total cash and cash equivalents. First Interstate BancSystem's Enterprise Value for Today is $2,837 Mil.
First Interstate BancSystem (NAS:FIBK) Market Cap Explanation
Market cap is not the real price you pay for a company. If you buy the company and become its owner, you become the owner of the cash the company has, and you also assume the companys debt. The real price you pay is the Enterprise Value.
Warren Buffett uses the ratio of total market cap of all public traded companies over GDP to measure if the market is expensive. As of April 2012, the US total market cap is about $14.7 trillion, while the US GDP is about $15 trillion. The market was modestly overvalued.
First Interstate BancSystem Market Cap Related Terms
First Interstate BancSystem Market Cap Historical Data
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
For the Banks - Regional subindustry, First Interstate BancSystem's Market Cap, along with its competitors' market caps and Market Cap data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
First Interstate BancSystem Market Cap vs Banks Industry
For the Banks industry and Financial Services sector, First Interstate BancSystem's Market Cap distribution charts can be found below:
* The bar in red indicates where First Interstate BancSystem's Market Cap falls into.
First Interstate BancSystem Market Cap Calculation
Market cap is the short version of market capitalization. It is the total market value to buy the whole company. It is equal to the share price times the number of shares outstanding.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
First Interstate BancSystem (FIBK) has a Market Cap of $3,707 Mil as of Aug. 18, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on First Interstate BancSystem and its competitors. According to the industry distribution chart, First Interstate BancSystem ranks #378 out of 1543 companies in the Banks industry, placing it in the top 24.5%.
Is First Interstate BancSystem's Market Cap too high?
First Interstate BancSystem's current Market Cap is $3,707 Mil. The Banks industry median Market Cap is 747.49. First Interstate BancSystem's value of $3,707 Mil is 395.9% above this industry median. Based on the distribution chart, First Interstate BancSystem ranks #378 out of 1543 companies in the Banks industry, which is in the top quartile — a strong position relative to peers. Overall, First Interstate BancSystem has a GF Score™ of 62/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does First Interstate BancSystem's Market Cap compare to NIC and FFBC?
According to the Banks industry distribution chart, First Interstate BancSystem ranks #378 out of 1543 companies for Market Cap. This places First Interstate BancSystem in the top 25% of its industry — outperforming the majority of peers. The industry median Market Cap is 747.49. First Interstate BancSystem's value of $3,707 Mil is 395.9% above this benchmark. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Market Cap for a Banks company?
The median Market Cap among Banks companies is 747.49, based on 1,543 companies in the industry. Companies in the top quartile (top 25%) have a Market Cap significantly above this median, while those in the bottom quartile fall well below. However, Market Cap should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. First Interstate BancSystem's current Market Cap of $3,707 Mil is 395.9% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Market Cap mean?
A high Market Cap can signal that a stock is expensive relative to its fundamentals. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on First Interstate BancSystem and its competitors. For the Banks industry, the median Market Cap is 747.49 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. First Interstate BancSystem's current Market Cap is $3,707 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is First Interstate BancSystem stock overvalued right now?
Based on GuruFocus' analysis, First Interstate BancSystem (FIBK) is currently considered Modestly Overvalued. The stock's GF Value™ is $32.89, compared to a current price of $38.90 — trading 18.3% above its estimated fair value. The current Market Cap is $3,707 Mil and 395.9% above the Banks industry median of 747.49. First Interstate BancSystem's overall GF Score™ is 62/100 with 6 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Market Cap calculated?
Market Cap is calculated from a company's financial statements. For First Interstate BancSystem (FIBK), the current Market Cap is $3,707 Mil as of Aug. 18, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is First Interstate BancSystem (FIBK) Overvalued in 2026?
Based on GuruFocus' analysis, First Interstate BancSystem stock appears to be overvalued.
The current stock price of $38.90 is trading 18.3% above its estimated GF Value™ of $32.89.
GuruFocus considers First Interstate BancSystem to be Modestly Overvalued.
Key valuation signals for FIBK:
Market Cap: $3,707 Mil
GF Value™: $32.89 vs. price of $38.90 (18.3% above fair value)
Industry Position: 395.9% above the Banks median (#378 of 1543)
No single metric tells the full story. See the FIBK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
First Interstate BancSystem Inc is a financial holding company. It is the parent company of First Interstate Bank, a community bank offering a range of internet, mobile, and other banking and financial services throughout Idaho, Montana, Oregon, South Dakota, Washington, and Wyoming. It delivers a range of financial products and services to both retail and commercial customers in industries like agriculture, construction, education, energy, governmental services, healthcare, mining, professional services, retail, tourism and wholesale trade. It generates majority of income from interest charged on loans, and interest and dividends earned on investments.
62GF Score
Get the complete analysis for FIBK
Market Cap is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
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