What is OSBC's market cap?

$1.27B, based on the Nov 3 close of $24.99.

What is OSBC's P/E ratio?

13.8× trailing-twelve-month earnings of $92.42M.

Does Old Second Bancorp pay a dividend?

Yes. The latest regular dividend was $0.08 per share (ex-date Oct 30), an annualised yield of 1.28%.

How much of OSBC is sold short?

3.0M shares, 6.2% of float, as of Oct 15, 2026.

What sector is OSBC in?

Financials, in the Banking & Credit industry.

NASDAQ · OSBCFinancialsBanking & Credit

Old Second Bancorp Inc (OSBC)

$24.99−0.32%

Close Nov 3, 2026 · split-adjusted

Oct 30, 2026$24.30▲ 35.38% in range

Oct 31, 2025Low $17.67 · High $25.91Oct 30, 2026

What changed · written from our data

As of Nov 3, 2026

Old Second Bancorp closed at $24.99 on Nov 3, down 0.32%, 3.6% below its 52-week closing high. Volume of 645.8K shares was 1.03× its 20-day average (close to normal).

Split-adjusted performance: +0.5% over one month, +19.2% over six months, +39.2% over one year.

In the quarter ended Jun 30, 2026, revenue was $114.45M, up 32.9% from a year earlier, with a net margin of 24.6%.

Short interest was 3.0M shares at the Oct 15 settlement, up 10.8% from the prior report (6.2% of float, 4.8 days to cover).

Market cap$1.27B50.9M shares

Revenue · quarter$114.5M+32.9% YoY

Diluted EPS$0.54+12.5% YoY

P/E · TTM13.8×P/S 2.8×

Net margin24.6%Gross 84.4%

Dividend yield1.28%$0.08 last paid

52-week range17.67 – 25.91−3.6% from high

Volume645.8K1.03× 20-day avg

Volatility · 60d15.2%Annualised

Short % of float6.2%4.8 days to cover

Net cash$778.8MCash $1.22B

Next earnings—Not scheduled

Split-adjusted performance

1W +1.6%1M +0.5%3M −3.5%6M +19.2%YTD +28.2%1Y +39.2%3Y +85.1%5Y +83.2%

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Banking & Credit

Percentile among 437 companies (100 = best)

6-month momentum85

Revenue growth88

Net margin82

Value (low P/E)31

Size61

Industry medians: 6-month return +6.7%, revenue growth +5.4%, net margin 18.1%, P/E 12.3×.

Short interest

Details →

Shares short3.0M+10.8% vs prior

Days to cover4.8Settled Oct 15

% of float6.2%

Short vol. 10d51.8%of daily volume

Closest peers by size in Banking & Credit

Company	Price	Today	6M	Rev. growth	Net margin	P/E	Mkt cap
OSBCOld Second Bancorp	$24.99	−0.32%	+19.2%	+32.9%	24.6%	13.8	$1.27B
SECZSecuritize	$7.80	+7.73%	—	—	—	—	$1.27B	Compare
CTBICommunity Trust Bancorp	$69.38	−0.93%	+5.3%	+7.0%	27.2%	11.7	$1.26B	Compare
WDWalker & Dunlop	$35.17	−1.65%	−31.3%	−3.9%	1.0%	31.8	$1.21B	Compare
HBTHBT Financial	$36.99	−1.39%	+33.1%	+37.5%	27.7%	17.3	$1.35B	Compare
FMBHFirst Mid Bancshares	$50.84	−1.22%	+16.4%	+22.8%	19.3%	13.5	$1.35B	Compare
KEELKeel Infrastructure	$2.19	+15.87%	—	—	−213.6%	—	$1.35B	Compare
MCBMetropolitan Bank Holding Corp. Common Stock, $0.01 par value per share	$96.01	−1.70%	+6.2%	+10.7%	13.4%	13.7	$1.19B	Compare
AMTBAmerant Bancorp	$29.60	−2.76%	+28.7%	−10.0%	13.7%	20.9	$1.18B	Compare

News about Old Second Bancorp

All news →

Old Second: 3 Key Takeaways for Long-Term InvestorsThe Motley Fool · 6d ago▲ Positive Old Second Bancorp (OSBC) Misses Q3 Earnings and Revenue EstimatesZacks Investment Research · Oct 21, 2026Neutral Old Second Bancorp (OSBC) Reports Q3 Earnings: What Key Metrics Have to SayZacks Investment Research · Oct 21, 2026Neutral Old Second Bancorp (OSBC) Earnings Expected to Grow: What to Know Ahead of Next Week's ReleaseZacks Investment Research · Oct 14, 2026▲ Positive Old Second Bancorp (OSBC) Moves to Buy: Rationale Behind the UpgradeZacks Investment Research · Oct 9, 2026▲ Positive

Quick answers

What does Old Second Bancorp do?: 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.
What is OSBC's market cap?: $1.27B, based on the Nov 3 close of $24.99.
What is OSBC's P/E ratio?: 13.8× trailing-twelve-month earnings of $92.42M.
Does Old Second Bancorp pay a dividend?: Yes. The latest regular dividend was $0.08 per share (ex-date Oct 30), an annualised yield of 1.28%.
How much of OSBC is sold short?: 3.0M shares, 6.2% of float, as of Oct 15, 2026.
What sector is OSBC in?: Financials, in the Banking & Credit industry.

About Old Second Bancorp

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.

HQ: Aurora, IL1,062 employeesListed Nov 16, 1993oldsecond.com

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology