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Old Second BancorpFRA:OSB +1.02%73 Shiller PE Ratio is 15.23 as of Aug. 25, 2026, which is 21% above its 10-year median of 12.63. GuruFocus rates FRA:OSB with a GF Score™ of 73/100 and a GF Value™ of €15.19 (Modestly Overvalued). The stock has 8 warning signs investors should review. Among 1,241 Banks companies, Old Second Bancorp ranks worse than 68.9% on this metric.
The historical rank and industry rank for Old Second Bancorp's Shiller PE Ratio or its related term are showing as below:
FRA:OSB'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 7.08 Med: 12.63 Max: 147.5
Current: 17.01
During the past years, Old Second Bancorp's highest Shiller PE Ratio was 147.50. The lowest was 7.08. And the median was 12.63.
FRA:OSB's Shiller PE Ratio is ranked worse than 68.9% of 1241
companies
in the Banks industry
Industry Median: 13.73
vs FRA:OSB: 17.01
E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.
Old Second Bancorp's adjusted earnings per share data for the three months ended in Jun. 2026 was €0.469. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is €1.30 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Old Second Bancorp (FRA:OSB) Shiller PE Ratio Explanation
Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.
Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.
Be Aware
Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.
Old Second Bancorp Shiller PE Ratio Related Terms
Old Second Bancorp Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for Old Second Bancorp's Shiller PE Ratio 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.
FRA:OSB vs UVSP, HFWA, PFBC: Shiller PE Ratio Comparison
For the Banks - Regional subindustry, Old Second Bancorp's Shiller PE Ratio, along with its competitors' market caps and Shiller PE Ratio 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 Shiller PE Ratio vs Banks Industry
For the Banks industry and Financial Services sector, Old Second Bancorp's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Old Second Bancorp's Shiller PE Ratio falls into.
For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.
* 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.
Add all the adjusted EPS together and divide 10 will get our E10.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
Old Second Bancorp (FRA:OSB) has a Shiller PE Ratio of 15.23 as of Aug. 25, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Old Second Bancorp and its competitors. This is 21% above median its historical median of 12.63. Over the past decade, Old Second Bancorp's Shiller PE Ratio has ranged from 7.08 to 147.50. According to the industry distribution chart, Old Second Bancorp ranks #855 out of 1241 companies in the Banks industry, placing it in the top 68.9%.
Is Old Second Bancorp's Shiller PE Ratio too high?
Old Second Bancorp's current Shiller PE Ratio of 15.23 is 21% above median its 10-year median of 12.63. Over the past 10 years, this metric has ranged from a low of 7.08 to a high of 147.50. The Banks industry median Shiller PE Ratio is 13.73. Old Second Bancorp's value of 15.23 is 10.9% above this industry median. Based on the distribution chart, Old Second Bancorp ranks #855 out of 1241 companies in the Banks industry, which is below the industry midpoint. Overall, Old Second Bancorp has a GF Score™ of 73/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Old Second Bancorp's Shiller PE Ratio compare to UVSP and HFWA?
According to the Banks industry distribution chart, Old Second Bancorp ranks #855 out of 1241 companies for Shiller PE Ratio. This places Old Second Bancorp in the lower half of its industry. The industry median Shiller PE Ratio is 13.73. Old Second Bancorp's value of 15.23 is 10.9% above this benchmark. Historically, Old Second Bancorp's own Shiller PE Ratio has ranged from 7.08 to 147.50 over the past decade. While the company's 10-year median is 12.63 vs. the industry median of 13.73, Old Second Bancorp has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Shiller PE Ratio for a Banks company?
The median Shiller PE Ratio among Banks companies is 13.73, based on 1,241 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Old Second Bancorp's current Shiller PE Ratio of 15.23 is 10.9% 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 Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Old Second Bancorp and its competitors. For the Banks industry, the median Shiller PE Ratio is 13.73 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Old Second Bancorp's current Shiller PE Ratio is 15.23, which is 21% above median its own 10-year median of 12.63. 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?
Based on GuruFocus' analysis, Old Second Bancorp (FRA:OSB) is currently considered Modestly Overvalued. The stock's GF Value™ is €15.19, compared to a current price of €19.80 — trading 30.3% above its estimated fair value. The current Shiller PE Ratio is 15.23, which is 21% above median its 10-year median of 12.63 and 10.9% above the Banks industry median of 13.73. Old Second Bancorp's overall GF Score™ is 73/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For Old Second Bancorp (FRA:OSB), the current Shiller PE Ratio is 15.23 as of Aug. 25, 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 €19.80 is trading 30.3% above its estimated GF Value™ of €15.19.
GuruFocus considers Old Second Bancorp to be Modestly Overvalued.
Key valuation signals for FRA:OSB:
Shiller PE Ratio: 15.23 (21% above median its 10-year median of 12.63)
GF Value™: €15.19 vs. price of €19.80 (30.3% above fair value)
Industry Position: 10.9% above the Banks median (#855 of 1241)
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 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.
73GF Score
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