NASDAQ: OSBC
Old Second Bancorp Inc Stock

$25.81+0.01 (+0.04%)
Updated Aug 13, 2026
OSBC Price
$25.81
Fair Value Price
$39.73
Market Cap
$1.31B
52 Week Low
$16.65
52 Week High
$26.04
P/E
14.42x
P/B
1.45x
P/S
3.51x
PEG
0.76x
Dividend Yield
1.08%
Revenue
$341.80M
Earnings
$92.42M
Gross Margin
100%
Operating Margin
36.35%
Profit Margin
27%
Debt to Equity
6.61
Operating Cash Flow
$146M
Beta
0.77
Next Earnings
N/A
Ex-Dividend
N/A
Next Dividend
N/A

OSBC Overview

Old Second Bancorp, Inc. (OSBC) serves as the parent holding company for Old Second National Bank, providing a full range of community banking services. The institution offers a broad spectrum of deposit products, including demand, NOW, money market, savings, time, and individual retirement accounts, alongside certificates of deposit. Its diverse lending portfolio encompasses commercial loans, lease financing, construction loans, and commercial real estate loans. For residential clients, offerings include first and second mortgages, home equity lines of credit, and general residential real estate loans. Consumer lending options cover needs such as motor vehicle, home improvement, and signature loans, further complemented by installment and agricultural loans, and overdraft checking services. Beyond deposits and loans, Old Second provides vital financial services like safe deposit boxes, trust and wealth management, money orders, cashier's checks, foreign currency exchange, direct deposits, discount brokerage, and debit and credit cards. The company also assists with acquiring U.S. treasury notes and bonds. Embracing digital convenience, Old Second Bancorp offers online and mobile banking platforms. Corporate clients benefit from an extensive suite of cash management solutions, featuring remote and mobile deposit capture, investment sweep accounts, zero balance accounts, automated tax payments, ATM access, telephone banking, lockbox services, automated clearing house (ACH) transactions, account reconciliation, controlled disbursements, detailed and general information reporting, foreign and domestic wire transfers, and vault services for currency and coin. Furthermore, it delivers investment, agency, and custodial services to individual, corporate, and not-for-profit clients. Established in 1981 and headquartered in Aurora, Illinois, Old Second Bancorp, Inc. serves its customers through 63 banking centers located across Cook, DeKalb, DuPage, Kane, Kendall, LaSalle, and Will counties within Illinois.

Zen Rating

Our proven quant model uses 115 proprietary factors, including AI, to determine OSBC's potential to beat the market

CHold
  • Stocks with a Zen Rating of Hold (C) had an average return of +5.11% per year. Learn More

Zen Rating Component Grades

C
Zen Rating uses advanced AI algorithms that detect subtle patterns in market data; it anticipates future trends that point to superior stock price results.

Industry: Bank

Industry Rating
D
OSBC
Ranked
#71 of 287

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OSBC News

Overview

Due Diligence Score

Industry Average (37)
You've viewed Due Diligence Score for 10/10 free stocks. Upgrade to Premium to see how OSBC scored across 38 valuation, financial, forecast, performance, and dividend due diligence checks.

Due Diligence Checks

OSBC ($25.81) is undervalued by 35.04% relative to our estimate of its Fair Value price of $39.73 based on Discounted Cash Flow (DCF) modelling, but does not have a significant margin of safety
Below Fair Value Valuation
OSBC ($25.81) is significantly undervalued by 35.04% relative to our estimate of its Fair Value price of $39.73 based on Discounted Cash Flow (DCF) modelling, which includes a healthy margin of safety
Significantly Below Fair Value Valuation
OSBC ($25.81) is trading above... subscribe to Premium to read more.
Below Benjamin Graham Formula Value Valuation
There are 35 more OSBC due diligence checks available for Premium users.

Valuation

OSBC fair value

Fair Value of OSBC stock based on Discounted Cash Flow (DCF)

Price
$25.81
Fair Value
$39.73
Undervalued by
35.04%
OSBC ($25.81) is undervalued by... subscribe to Premium to read more.
Below Fair Value Valuation
OSBC ($25.81) is significantly undervalued... subscribe to Premium to read more.
Significantly Below Fair Value Valuation
OSBC ($25.81) is trading above... subscribe to Premium to read more.
Below Benjamin Graham Formula Value Valuation

OSBC price to earnings (PE)

For valuing profitable companies with steady earnings

Company
14.42x
Industry
14.78x
Market
14.17x
OSBC is good value based... subscribe to Premium to read more.
P/E vs Industry Valuation
OSBC is poor value based... subscribe to Premium to read more.
P/E vs Market Valuation

OSBC price to book (PB)

For valuing companies that are loss-making or have lots of physical asset

Company
1.45x
Industry
1.35x
OSBC is poor value based... subscribe to Premium to read more.
P/B vs Industry Valuation

OSBC price to earnings growth (PEG)

For valuing profitable companies with growth potential

OSBC is good value based... subscribe to Premium to read more.
PEG Value Valuation

OSBC's financial health

Profit margin

Revenue
$89.1M
Net Income
$28.2M
Profit Margin
31.6%
OSBC's Earnings (EBIT) of $124.24M... subscribe to Premium to read more.
Interest Coverage Financials
OSBC's profit margin has decreased... subscribe to Premium to read more.
Profit Margin Growth Financials

Assets to liabilities

Assets
$6.9B
Liabilities
$6.0B
Debt to equity
6.61
OSBC's debt relative to shareholder... subscribe to Premium to read more.
Shrinking Debt Financials
OSBC's debt to equity ratio... subscribe to Premium to read more.
Healthy Debt to Equity Financials

Cash flow

Operating
$28.6M
Investing
-$6.5M
Financing
$5.5M
OSBC's operating cash flow ($145.71M)... subscribe to Premium to read more.
Debt Coverage Financials

OSBC vs Bank Stocks

TickerZen RatingMarket Cap1d %P/EP/B
OSBCC$1.31B+0.04%14.42x1.45x
HBTC$1.35B+2.08%15.91x1.77x
WABCC$1.39B+0.64%13.20x1.62x
FMBHC$1.39B+0.48%12.90x1.26x
HFWAC$1.23B+0.64%14.08x1.11x

Old Second Bancorp Stock FAQ

What is Old Second Bancorp's quote symbol?

(NASDAQ: OSBC) Old Second Bancorp trades on the NASDAQ under the ticker symbol OSBC. Old Second Bancorp stock quotes can also be displayed as NASDAQ: OSBC.

If you're new to stock investing, here's how to buy Old Second Bancorp stock.

What is the 52 week high and low for Old Second Bancorp (NASDAQ: OSBC)?

(NASDAQ: OSBC) Old Second Bancorp's 52-week high was $26.04, and its 52-week low was $16.65. It is currently -0.88% from its 52-week high and 55.02% from its 52-week low.

How much is Old Second Bancorp stock worth today?

(NASDAQ: OSBC) Old Second Bancorp currently has 50,875,716 outstanding shares. With Old Second Bancorp stock trading at $25.81 per share, the total value of Old Second Bancorp stock (market capitalization) is $1.31B.

Old Second Bancorp stock was originally listed at a price of $11.63 in Dec 31, 1997. If you had invested in Old Second Bancorp stock at $11.63, your return over the last 28 years would have been 122.02%, for an annualized return of 2.89% (not including any dividends or dividend reinvestments).

How much is Old Second Bancorp's stock price per share?

(NASDAQ: OSBC) Old Second Bancorp stock price per share is $25.81 today (as of Aug 13, 2026).

What is Old Second Bancorp's Market Cap?

(NASDAQ: OSBC) Old Second Bancorp's market cap is $1.31B, as of Aug 14, 2026.

Market cap (market capitalization) is the total market value of a publicly traded company's outstanding shares.

Old Second Bancorp's market cap is calculated by multiplying OSBC's current stock price of $25.81 by OSBC's total outstanding shares of 50,875,716.
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