Old Second Bancorp

OSBC on Nasdaq. OLD Second Bancorp sells checking accounts, savings accounts, and loans to people and businesses. Market value $1.3bn.

Watch this stockFree. We tell you when something changes.

Price checks use the past 12 months to June 2026. Some use the latest annual report instead, as marked. Quality checks use five annual reports, the latest for the year to December 2025.

Should I look at this?

Worth a closer look

What to watch out for

Nothing stood out in the numbers we check.

Read what could go wrong

This is not advice. Check the numbers below.

Compare with another stock

Return on equity
five annual reports to December 2025
13.7%five-year median

Yearly profit per dollar of owners' money: 14 cents. Above 10 is good.

Price to book
quarterly report to June 2026
1.4×

What you pay for each dollar of net assets: $1.41.

Earnings yield
past 12 months to June 2026
7.3%

Profit per $100 you pay: $7.25.

Quality score: 97 of 100. Price score: 85 of 100. Our list needs 70 on quality and 60 on price.

$25.05 a share, 50% above its 1-year low

Over the past year the price has ranged from $16.65 to $26.06.

Dividend: 1.0% a year

Paid every year for at least 5 years

Payouts have jumped around in recent years, so this may not repeat.

Prices from Tuesday’s close (6 October).

Five years of cash, in billions

n/a
n/a
n/a
n/a
n/a
20212022202320242025
Revenue
n/an/an/an/an/a
Operating margin
n/an/an/an/an/a
Debt to equity
n/an/an/an/an/a
Shares outstanding
0.04bn0.04bn0.04bn0.05bn0.05bn

Health checks

  • Free cash flow positiveDoesn't apply to banks and insurers
  • Accounting checksDoesn't apply to banks and insurers
  • DebtDoesn't apply to banks and insurers
  • Revenue growth, five yearsUnknown
  • Buying back its own sharesNo, 14% more shares since 2021

The quarter to June 2026

How the business did, compared with the same quarter a year earlier.

  • Profit: $28 million, up 29% on a year ago.
  • Spare cash over the past 12 months: $142 million, up from $108 million.
  • 14% more shares than a year ago. Each share owns a bit less of the company.
Profit by quarter
Profit by quarter
Quarter toAmount
September 2024$23m
December 2024$19m
March 2025$20m
June 2025$22m
September 2025$10m
December 2025$29m
March 2026$26m
June 2026$28m

From the company's quarterly reports to the SEC.

Dates

Next results (estimated)
n/a
Last annual report (10-K)
26 February 2026
Next quarterly (estimated, 10-Q)
5 November 2026

Who owns it

1 long-term investor we follow owns it, down from 2 last quarter. 184 funds in all.

Jun '25
Dec '25
Jun '26

Sold out this quarter

Largest holders overall

From 13F filings for the quarter ended 30 June 2026.

Big holders and activists

No one has reported a stake above 5% since December 2024.

From Schedule 13D and 13G filings: anyone owning more than 5% must file one.

What insiders did

In the last 12 months, 1 insider bought $502 of shares on the open market. 7 sold $8m, $2m of it under preset trading plans.

  • COLLINS GARY S
    VICE CHAIRMAN, Director
    Sold
    Date
    23 September 2026
    Shares
    16,000
    Price
    $24.69
    Value
    $395,080
  • MCLEAN HUGH H
    Director
    Sold
    Date
    8 September 2026
    Shares
    25,000
    Price
    $25.63
    Value
    $640,768
  • COLLINS GARY S
    VICE CHAIRMAN, Director
    Sold
    Date
    4 September 2026
    Shares
    5,000
    Price
    $25.70
    Value
    $128,525
  • MCLEAN HUGH H
    Director
    Sold
    Date
    3 September 2026
    Shares
    25,000
    Price
    $25.73
    Value
    $643,175
  • Campbell Darin Patrick
    President, Powersports Lending, Director
    Sold
    Date
    2 September 2026
    Shares
    24,000
    Price
    $25.53
    Value
    $612,792
  • Eccher James
    CHAIRMAN AND CEO, Director
    Sold
    under a preset trading plan
    Date
    12 August 2026
    Shares
    19,313
    Price
    $25.61
    Value
    $494,701
  • Eccher James
    CHAIRMAN AND CEO, Director
    Sold
    under a preset trading plan
    Date
    11 August 2026
    Shares
    55,687
    Price
    $25.46
    Value
    $1m
  • COLLINS GARY S
    VICE CHAIRMAN, Director
    Sold
    Date
    22 May 2026
    Shares
    5,120
    Price
    $21.12
    Value
    $108,134
  • COLLINS GARY S
    VICE CHAIRMAN, Director
    Sold
    Date
    21 May 2026
    Shares
    10,000
    Price
    $21.12
    Value
    $211,200
  • Lyons Billy J Jr.
    Director
    Bought
    Date
    11 May 2026
    Shares
    24
    Price
    $20.90
    Value
    $502

From Form 4 filings: insiders must report trades in their own company's shares within two days.

Warning signs in its filings

Problems the company itself reported to the SEC, in its own words.

None of the warning signs we check for were found.

We look for five warning signs: doubt it can keep going, weak checks on its own accounts, a notice that its past accounts can't be relied on, a change of auditor, and one customer bringing in a big share of sales. We don't check lawsuits, investigations or debt yet.

We checked the auditor's report, internal controls, restatement notices, auditor changes and big customers in the 10-K filed 26 Feb 2026, plus the 10-Q filed 6 Aug 2026 and 13 later 8-Ks.

A 10-K is the yearly report every US company files with the SEC. An 8-K is a short notice of a big event.

What could go wrong

Cheap for a reason is the question the numbers cannot answer.

Whether the price already reflects the risks is what the deep dive is for.

What changed in the risks this year

Companies must list what could hurt them each year. These are the parts that changed since last year’s report.

  • We operate in a highly competitive industry and market area and may face severe competitive disadvantages .

    Could happen
    We face substantial competition in all areas of our operations from a variety of different competitors, many of which are larger and have more financial resources. We compete with commercial banks, credit unions, savings and loan associations, mortgage banking firms, other financial service businesses, including investment advisory and wealth management firms, mutual fund companies, and securities brokerage and investment banking firms, as well as super-regional, national and international financial institutions that operate offices in ​ our primary market areas and elsewhere. Local competitors continue to expand their presence in the western suburbs of Chicago, including the communities that surround Aurora, Illinois, and these competitors may be better positioned than us to compete for loans, acquisitions and personnel. As customers’ preferences and expectations continue to evolve, technology has lowered barriers to entry and made it possible for banks to expand their geographic reach by providing services over the Internet and for non-banks to offer products and services traditionally provided by banks, such as business and consumer lending, automatic transfer and automatic payment systems. There has also been significant advancement, as well as setbacks, in the exchange of digital assets (“cryptocurrency”) that could continue to materially impact the financial services industry. We have not entered into or considered any transactions or custodial agreements regarding cryptocurrency. Because of this rapidly changing technology, our future success will depend in part on our ability to address our customers’ needs by using technology. Customer loyalty can be easily influenced by a competitor’s new products, especially offerings that could provide cost savings or a higher return to the customer. Moreover, the financial services industry could become even more competitive as a result of legislative and regulatory changes, and many large scale competitors can leverage economies of scale to offer better pricing for products and services compared to what we can offer. Likewise, rapid adoption of AI by competitors, either in financial services or FinTech, could create significant pressure on pricing, automation, or client satisfaction. If we fail to keep pace with AI-enabled analytics and customer offerings, our competitive positioning could be detrimentally impacted.
    Read more
  • We face risks related to the adoption of future legislation and potential changes in federal regulatory agency leadership, policies, and priorities.

    Could happen
    ​ For example, recent legislative and regulatory actions have included the use of the Congressional Review Act to repeal agency rules affecting bank merger review processes and the enactment of legislation establishing a federal framework for stablecoins and other digital assets. Because of this kind of oscillation in regulation, the prospects for the enactment of major banking reform legislation remain unclear at this time.
    Read more
  • Given our expanded retail business we are subject to various state consumer protection laws and tax codes.

    Could happen
    ​ As a result of our expanded retail and nationwide consumer lending activities, including powersport and other specialty consumer loan programs, some of which are originated through third-party dealers or acquired portfolios, we are subject to a broad and evolving array of federal and state consumer protection laws and tax requirements that vary by jurisdiction and product type. Failure to comply with ​ these laws, or changes in their interpretation or enforcement, could result in fines, penalties, litigation, reputational harm, increased compliance costs, or limitations on our ability to conduct business in certain markets, which could adversely affect our business, financial condition and results of operations.
    Read more

Read it in the annual report

The deep dive

Everything above is arithmetic on public filings. The deep dive reads the last ten years of annual reports, the proxy statements, and the earnings calls, then argues the case the way Buffett, Klarman, and Hohn would, and checks every claim against the source.

  • What the business is worth, as a range, and the margin of safety at today’s price
  • Prices to start buying, buy, and buy hard
  • The three things that would make this a mistake
  • Every number footnoted to the filing it came from
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What a finished deep dive looks like

Not advice. Numbers on this page come from SEC filings and are updated each night; prices are updated again after the US market closes. The five-year figures are rounded.