Old Second Bancorp (FRA:OSB) Market Cap: €1,058.4 Mil (As of Jun. 27, 2026)


FRA:OSB Old Second Bancorp Inc FRA:OSB
69 GF Score
Price €18.20
GF Value €14.54
! 7 Warning Signs
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What is Old Second Bancorp Market Cap?

Old Second Bancorp FRA:OSB -7.61% 69 Market Cap is €1,058.4 Mil as of Jun. 27, 2026. GuruFocus rates FRA:OSB with a GF Score™ of 69/100 and a GF Value™ of €14.54. The stock has 7 warning signs investors should review. Among 1,544 Banks companies, Old Second Bancorp ranks better than 59.07% on this metric.

Market cap is the total market value to buy the whole company. It is equal to the share price times the number of Shares Outstanding (EOP). Old Second Bancorp's share price for the quarter that ended in Mar. 2026 was €17.1. Old Second Bancorp's Shares Outstanding (EOP) for the quarter that ended in Mar. 2026 was 51.7 Mil. Therefore, Old Second Bancorp's market cap for the quarter that ended in Mar. 2026 was €883.5 Mil.

Old Second Bancorp's quarterly market cap increased from Sep. 2025 (€763.6 Mil) to Dec. 2025 (€874.3 Mil) and increased from Dec. 2025 (€874.3 Mil) to Mar. 2026 (€883.5 Mil).

Old Second Bancorp's annual market cap increased from Dec. 2023 (€630.2 Mil) to Dec. 2024 (€632.7 Mil) and increased from Dec. 2024 (€632.7 Mil) to Dec. 2025 (€874.3 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. Old Second Bancorp's Enterprise Value for Today is €1,217.8 Mil.


Old Second Bancorp  (FRA:OSB) 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 company’s 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.


Old Second Bancorp Market Cap Related Terms


Old Second Bancorp Market Cap Historical Data

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The historical data trend for Old Second Bancorp's Market Cap can be seen below:

* 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.

Old Second Bancorp Market Cap Chart

Old Second Bancorp Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Market Cap
Get a 7-Day Free Trial Premium Member Only Premium Member Only 497.96 677.65 630.24 632.71 874.31

Old Second Bancorp Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Market Cap Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 693.72 675.84 763.64 874.31 883.49

FRA:OSB vs UVSP, CCB, MCB: Market Cap Comparison

For the Banks - Regional subindustry, Old Second Bancorp'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.


Old Second Bancorp Market Cap vs Banks Industry

For the Banks industry and Financial Services sector, Old Second Bancorp's Market Cap distribution charts can be found below:

* The bar in red indicates where Old Second Bancorp's Market Cap falls into.


FRA:OSB
69GF Score
Old Second Bancorp Inc FRA:OSB
Market Cap is just one metric. See GF Score™, valuation, warning signs, and more.
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Old Second Bancorp 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.

Old Second Bancorp's Market Cap for the fiscal year that ended in Dec. 2025 is calculated as

Market Cap (A: Dec. 2025 )=Share Price (A: Dec. 2025 )*Shares Outstanding (EOP) (A: Dec. 2025 )
=€16.6*52.669
=€874.3

Old Second Bancorp's Market Cap for the quarter that ended in Mar. 2026 is calculated as

Market Cap (Q: Mar. 2026 )=Share Price (Q: Mar. 2026 )*Shares Outstanding (EOP) (Q: Mar. 2026 )
=€17.1*51.666
=€883.5

* 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.

Frequently Asked Questions Learn more about Market Cap →
What does a Market Cap of €1,058.4 Mil mean?
Old Second Bancorp (FRA:OSB) has a Market Cap of €1,058.4 Mil as of Jun. 27, 2026. Market cap equals the total value of a company's shares: price times shares outstanding. View historical data on Old Second Bancorp and its competitors. According to the industry distribution chart, Old Second Bancorp ranks #632 out of 1544 companies in the Banks industry, placing it in the top 40.9%.
Is Old Second Bancorp's Market Cap too high?
Old Second Bancorp's current Market Cap is €1,058.4 Mil. Based on the distribution chart, Old Second Bancorp ranks #632 out of 1544 companies in the Banks industry, which is above the industry midpoint. Overall, Old Second Bancorp has a GF Score™ of 69/100, reflecting its overall financial health beyond just this single metric.
How does Old Second Bancorp's Market Cap compare to UVSP and CCB?
According to the Banks industry distribution chart, Old Second Bancorp ranks #632 out of 1544 companies for Market Cap. This puts Old Second Bancorp in the upper half of its industry. The industry median Market Cap is 705.40. 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 705.40, based on 1,544 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. 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 Old Second Bancorp and its competitors. For the Banks industry, the median Market Cap is 705.40 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Old Second Bancorp's current Market Cap is €1,058.4 Mil. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Old Second Bancorp stock overvalued right now?
Old Second Bancorp (FRA:OSB) has a current Market Cap of €1,058.4 Mil. The stock's GF Value™ is €14.54, compared to a current price of €18.20 — trading 25.2% above its estimated fair value. The current Market Cap is €1,058.4 Mil. Old Second Bancorp's overall GF Score™ is 69/100 with 7 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 Old Second Bancorp (FRA:OSB), the current Market Cap is €1,058.4 Mil as of Jun. 27, 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 Old Second Bancorp (FRA:OSB) Overvalued in 2026?

Based on GuruFocus' analysis, Old Second Bancorp stock appears to be overvalued. The current stock price of €18.20 is trading 25.2% above its estimated GF Value™ of €14.54.

Key valuation signals for FRA:OSB:

  • Market Cap: €1,058.4 Mil
  • GF Value™: €14.54 vs. price of €18.20 (25.2% above fair value)
  • GF Score™: 69/100 with 7 warning signs

No single metric tells the full story. See the FRA:OSB stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Old Second Bancorp Business Description

Other Exchanges OSBC:USA
Address 37 South River Street, Aurora, IL, USA, 60507
Old Second Bancorp Inc is a bank holding company. It provides consumer and commercial banking products such as demand, money market, savings, time deposit, and individual retirement as well as commercial, industrial, consumer, and real estate lending, including installment loans, student loans, agricultural loans, lines of credit and overdraft checking, safe deposit operations, trust services, wealth management services, and additional services tailored to the needs of individual customers, corporates, small-medium enterprises. The company has one operating segment, which is community banking. The company's revenue consists of interest, commission, payments, and other income.
69GF Score

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Market Cap is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€18.20
Price
€14.54
GF Value