Old Second Bancorp (OSBC) Stock Fundamentals, Analysis & Risk Signals

Health score, price, valuation, risk signals, and key metrics at a glance.

Old Second Bancorp

NasdaqGS•Financial Services•Banks - Regional

$25.58+0.05(<0.01%)After hours

Market Cap

$1.31B

P/E

14.1x

P/S

2.9x

P/B

1.4x

Old Second Bancorp, Inc. operates as the bank holding company for Old Second National Bank that provides community banking services in the United States. The company provides deposit products, including consumer and business checking, NOW, money market, savings, and other time deposit accounts, as well as certificates of deposit and individual retirement accounts. It also offers lending products, such as commercial and industrial loans; commercial real estate loans; multifamily loans; construction and development loans; residential real estate loans, such as residential first mortgage and second mortgage loans; home equity lines of credit; consumer loans, including motor vehicle, home improvement, and signature loans; installment and agricultural loans; lease financing receivables and overdraft checking; and safe deposit operations. In addition, the company provides online and mobile banking; corporate cash management products, including remote and mobile deposits capture, investment sweep accounts, zero balance accounts, automated tax payments, automatic teller machines access, telephone banking, lockbox accounts, automated clearing house transactions, account reconciliation, controlled disbursement, detail and general information reporting, foreign and domestic wire transfers, and vault services for currency and coin; and investment, agency, and custodial services for individual, corporate, and not-for-profit clients. The company was founded in 1871 and is headquartered in Aurora, Illinois.

How this company scores

ExcellentMetricSide Score: 85/100

Strongest: Cash & Earnings Quality (25/25); weakest: Balance Sheet & Red Flags (20/25).

Profitability20/25

Growth20/25

Balance Sheet & Red Flags20/25

Cash & Earnings Quality25/25

Strengths

Growing revenueRising free cash flowStrong marginsLow leverage

Valuation vs. 5-year range

Today's multiple positioned against its own trailing range — a visual premium/discount check.

P/E · 14.1x5y range 6.3x – 32.2x

Currently above its 20-quarter median.

P/S · 2.9x5y range 1.8x – 4.0x

Currently near its 20-quarter median.

P/B · 1.4x5y range 0.8x – 1.6x

Watch items

Data-driven signals worth keeping an eye on across the last 8 quarters

High Risk

Margin Pressure

Watch

Operating margins declined 15.2% — watch for continued compression, which may signal competitive or cost pressure.

Share Dilution

Red Flag

Shares outstanding increased 14.3% — significant dilution, likely from stock compensation or capital raises.

Price & Volume

Market Cap $1.31B

Metrics at a Glance

as of June 2026

Revenue & Profit

Revenue, EBITDA, operating income, net income, EPS, and shares

TTM Revenue: $457.07M
Q. Revenue: $114.45M
TTM EBITDA: $134.03M
TTM Op. Income: $124.24M
Q. Op. Income: $37.84M
TTM Net Income: $92.42M
Q. Net Income: $28.18M
EPS: $0.55
Shares Out.: $51.25M

$457.07M in TTM revenue grew 33.1% YoY, reaching $114.45M last quarter. TTM EBITDA of $134.03M and TTM operating income of $124.24M show growth is flowing through to the bottom line. TTM net income of $92.42M means revenue is converting into profit. Across the last 8 quarters, TTM revenue has risen for 5 consecutive quarters — an improving trend.

Margins

Gross, EBITDA, operating, and net margin trends

Gross Margin: 84.4%
EBITDA Margin: 34.6%
Op. Margin: 33.1%
Net Margin: 24.6%

Op. margin of 33.1% is down 0.9% YoY — costs are rising relative to revenue. Net margin at 24.6% and gross margin of 84.4% show how much of each revenue dollar survives to profit. Over the past year, operating margin is down 3% — an improving trend.

Price Ratios

P/E, P/S, P/B, EV/EBITDA, FCF yield, and earnings yield

P/E Ratio: 14.1x
P/S Ratio: 2.9x
P/B Ratio: 1.4x

At 14.1x P/E, the stock trades below typical market levels. P/S of 2.9x and P/B of 1.4x provide additional context. P/E sits below typical market levels while revenue is growing. Over the past year, P/E is up 48% — a weakening trend.

Assets & Liabilities

Total assets, cash, debt, book value, and leverage

Total Assets: $6.87B
Cash: $143.33M
Long-Term Debt: $93.66M
Book Value: $902.81M
D/E Ratio: 0.1
Debt/EBITDA: 2.4

With $6.87B in assets and $93.66M in long-term debt, D/E is 0.1and book value is $902.81M — a conservative capital structure with a cushion to weather downturns. Across the last 8 quarters, debt/equity has fallen for 4 consecutive quarters — an improving trend.

Cash Flow

Operating cash flow, free cash flow, FCF margin, and earnings quality

Op. Cash Flow: $28.59M
TTM Free Cash Flow: $142.16M
FCF Margin: 31.1%
FCF / Net Income: 1.5

TTM FCF of $142.16M on $28.59M in operating cash flow. The FCF / Net Income ratio of 1.5x means free cash flow covers net income — earnings are backed by cash. Across the last 8 quarters, free cash flow has risen for 3 consecutive quarters — an improving trend.