Old Second BancorpOSBC +0.20%69 Cyclically Adjusted PB Ratio is 1.89 as of Jul. 11, 2026, which is 5% above its 10-year median of 1.80. GuruFocus rates OSBC with a GF Score™ of 69/100 and a GF Value™ of $18.70 (Modestly Overvalued). The stock has 7 warning signs investors should review. Among 1,299 Banks companies, Old Second Bancorp ranks worse than 77.75% on this metric.
The historical rank and industry rank for Old Second Bancorp's Cyclically Adjusted PB Ratio or its related term are showing as below:
OSBC'
s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 1 Med: 1.8 Max: 2.75
Current: 1.88
During the past years, Old Second Bancorp's highest Cyclically Adjusted PB Ratio was 2.75. The lowest was 1.00. And the median was 1.80.
OSBC's Cyclically Adjusted PB Ratio is ranked worse than 77.75% of 1299
companies
in the Banks industry
Industry Median: 1.24
vs OSBC: 1.88
The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.
Old Second Bancorp's adjusted book value per share data for the three months ended in Mar. 2026 was $17.290. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is $12.14 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Old Second Bancorp (NAS:OSBC) Cyclically Adjusted PB Ratio Explanation
Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.
Old Second Bancorp Cyclically Adjusted PB Ratio Related Terms
Old Second Bancorp Cyclically Adjusted PB Ratio Historical Data
* Premium members only.
The historical data trend for Old Second Bancorp's Cyclically Adjusted PB 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.
Old Second Bancorp Cyclically Adjusted PB Ratio Chart
OSBC vs HFWA, CCB, UVSP: Cyclically Adjusted PB Ratio Comparison
For the Banks - Regional subindustry, Old Second Bancorp's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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 Cyclically Adjusted PB Ratio vs Banks Industry
For the Banks industry and Financial Services sector, Old Second Bancorp's Cyclically Adjusted PB Ratio distribution charts can be found below:
* The bar in red indicates where Old Second Bancorp's Cyclically Adjusted PB Ratio falls into.
Old Second Bancorp Cyclically Adjusted PB Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.
Old Second Bancorp's Cyclically Adjusted PB Ratio for today is calculated as
* 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.
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.
What does a Cyclically Adjusted PB Ratio of 1.89 mean?
Old Second Bancorp (OSBC) has a Cyclically Adjusted PB Ratio of 1.89 as of Jul. 11, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Old Second Bancorp and its competitors. This is near median its historical median of 1.80. Over the past decade, Old Second Bancorp's Cyclically Adjusted PB Ratio has ranged from 1.00 to 2.75. According to the industry distribution chart, Old Second Bancorp ranks #1010 out of 1299 companies in the Banks industry, placing it in the top 77.8%.
Is Old Second Bancorp's Cyclically Adjusted PB Ratio too high?
Old Second Bancorp's current Cyclically Adjusted PB Ratio of 1.89 is near median its 10-year median of 1.80. Over the past 10 years, this metric has ranged from a low of 1.00 to a high of 2.75. The Banks industry median Cyclically Adjusted PB Ratio is 1.24. Old Second Bancorp's value of 1.89 is 52.4% above this industry median. Based on the distribution chart, Old Second Bancorp ranks #1010 out of 1299 companies in the Banks industry, which is in the bottom quartile relative to peers. Overall, Old Second Bancorp has a GF Score™ of 69/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Old Second Bancorp's Cyclically Adjusted PB Ratio compare to HFWA and CCB?
According to the Banks industry distribution chart, Old Second Bancorp ranks #1010 out of 1299 companies for Cyclically Adjusted PB Ratio. This places Old Second Bancorp in the lower half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.24. Old Second Bancorp's value of 1.89 is 52.4% above this benchmark. Historically, Old Second Bancorp's own Cyclically Adjusted PB Ratio has ranged from 1.00 to 2.75 over the past decade. While the company's 10-year median is 1.80 vs. the industry median of 1.24, 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 Cyclically Adjusted PB Ratio for a Banks company?
The median Cyclically Adjusted PB Ratio among Banks companies is 1.24, based on 1,299 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Old Second Bancorp's current Cyclically Adjusted PB Ratio of 1.89 is 52.4% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Old Second Bancorp and its competitors. For the Banks industry, the median Cyclically Adjusted PB Ratio is 1.24 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Old Second Bancorp's current Cyclically Adjusted PB Ratio is 1.89, which is near median its own 10-year median of 1.80. 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 (OSBC) is currently considered Modestly Overvalued. The stock's GF Value™ is $18.70, compared to a current price of $22.89 — trading 22.4% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 1.89, which is near median its 10-year median of 1.80 and 52.4% above the Banks industry median of 1.24. 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 Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Old Second Bancorp (OSBC), the current Cyclically Adjusted PB Ratio is 1.89 as of Jul. 11, 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 (OSBC) Overvalued in 2026?
Based on GuruFocus' analysis, Old Second Bancorp stock appears to be overvalued.
The current stock price of $22.89 is trading 22.4% above its estimated GF Value™ of $18.70.
GuruFocus considers Old Second Bancorp to be Modestly Overvalued.
Key valuation signals for OSBC:
Cyclically Adjusted PB Ratio: 1.89 (near median its 10-year median of 1.80)
GF Value™: $18.70 vs. price of $22.89 (22.4% above fair value)
Industry Position: 52.4% above the Banks median (#1010 of 1299)
No single metric tells the full story. See the OSBC 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.
69GF Score
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