Old Second Bancorp (FRA:OSB) Cyclically Adjusted PB Ratio: 1.90 (As of Jul. 10, 2026) — Near Median


FRA:OSB Old Second Bancorp Inc FRA:OSB
69 GF Score
Price €19.60
GF Value €16.04
! 7 Warning Signs
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What is Old Second Bancorp Cyclically Adjusted PB Ratio?

Old Second Bancorp FRA:OSB 69 Cyclically Adjusted PB Ratio is 1.90 as of Jul. 10, 2026, which is 6% above its 10-year median of 1.80. GuruFocus rates FRA:OSB with a GF Score™ of 69/100 and a GF Value™ of €16.04. 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.

As of today (2026-07-10), Old Second Bancorp's current share price is €19.60. Old Second Bancorp's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was €10.30. Old Second Bancorp's Cyclically Adjusted PB Ratio for today is 1.90.

The historical rank and industry rank for Old Second Bancorp's Cyclically Adjusted PB Ratio or its related term are showing as below:

FRA:OSB' 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.

FRA:OSB's Cyclically Adjusted PB Ratio is ranked worse than
77.75% of 1299 companies
in the Banks industry
Industry Median: 1.24 vs FRA:OSB: 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 €14.956. 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 €10.30 for the trailing ten years ended in Mar. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Old Second Bancorp  (FRA:OSB) 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

Old Second Bancorp Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.84 1.93 1.63 1.70 1.67

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
Cyclically Adjusted PB Ratio 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 1.54 1.59 1.51 1.67 1.66

FRA:OSB 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.


FRA:OSB
69GF Score
Old Second Bancorp Inc FRA:OSB
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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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

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=19.60/10.30
=1.90

* 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's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, Old Second Bancorp's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book=Book Value per Share/CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=14.956/330.2130*330.2130
=14.956

Current CPI (Mar. 2026) = 330.2130.

Old Second Bancorp Quarterly Data

Book Value per Share CPI Adj_Book
201606 5.048 241.018 6.916
201609 5.174 241.428 7.077
201612 5.620 241.432 7.687
201703 5.763 243.801 7.806
201706 5.742 244.955 7.741
201709 5.685 246.819 7.606
201712 5.714 246.524 7.654
201803 5.562 249.554 7.360
201806 6.038 251.989 7.912
201809 6.284 252.439 8.220
201812 6.766 251.233 8.893
201903 7.201 254.202 9.354
201906 7.615 256.143 9.817
201909 8.199 256.759 10.545
201912 8.355 256.974 10.736
202003 8.097 258.115 10.359
202006 8.479 257.797 10.861
202009 8.540 260.280 10.835
202012 8.607 260.474 10.911
202103 9.006 264.877 11.227
202106 9.134 271.696 11.101
202109 9.511 274.310 11.449
202112 9.993 278.802 11.836
202203 9.523 287.504 10.938
202206 9.530 296.311 10.620
202209 9.828 296.808 10.934
202212 9.764 296.797 10.863
202303 10.390 301.836 11.367
202306 10.621 305.109 11.495
202309 11.167 307.789 11.981
202312 11.843 306.746 12.749
202403 12.230 312.332 12.930
202406 12.829 314.175 13.484
202409 13.286 315.301 13.914
202412 14.281 315.605 14.942
202503 14.261 319.799 14.725
202506 13.829 322.561 14.157
202509 14.021 324.800 14.255
202512 14.541 324.054 14.817
202603 14.956 330.213 14.956

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

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 1.90 mean?
Old Second Bancorp (FRA:OSB) has a Cyclically Adjusted PB Ratio of 1.90 as of Jul. 10, 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 1.90 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 1.90 is 53.2% 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, 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 1.90 is 53.2% 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 1.90 is 53.2% 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 1.90, 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?
Old Second Bancorp (FRA:OSB) has a current Cyclically Adjusted PB Ratio of 1.90. The stock's GF Value™ is €16.04, compared to a current price of €19.60 — trading 22.2% above its estimated fair value. The current Cyclically Adjusted PB Ratio is 1.90, which is near median its 10-year median of 1.80 and 53.2% 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 (FRA:OSB), the current Cyclically Adjusted PB Ratio is 1.90 as of Jul. 10, 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 €19.60 is trading 22.2% above its estimated GF Value™ of €16.04.

Key valuation signals for FRA:OSB:

  • Cyclically Adjusted PB Ratio: 1.90 (near median its 10-year median of 1.80)
  • GF Value™: €16.04 vs. price of €19.60 (22.2% above fair value)
  • GF Score™: 69/100 with 7 warning signs
  • Industry Position: 53.2% above the Banks median (#1010 of 1299)

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

Get the complete analysis for FRA:OSB

Cyclically Adjusted PB Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€19.60
Price
€16.04
GF Value