Old Second Bancorp, Inc.
Business Overview: Old Second Bancorp, Inc. (Nasdaq: OSBC)
Executive Summary
Old Second Bancorp is the bank holding company for Old Second National Bank, a community bank serving the Chicago metropolitan area and surrounding Illinois markets with commercial and retail banking, wealth management, and trust services.
Why it matters: Old Second is a well-established Chicago-area community/regional bank with a solid deposit franchise ($5.60 billion) and healthy profitability ($80.3 million net income), competing on local relationships in one of the largest and most competitive U.S. banking markets.
1. Core Business Model & How They Work
[ Gather Deposits (Chicago Metro) ] ➡️ [ Deploy into Commercial/Consumer/Real Estate Loans ] ➡️ [ Net Interest Margin ] ➡️ [ Fee Income (Trust/Wealth) ] ➡️ [ Net Income ]Old Second follows the standard community-bank model: gathering deposits across its Chicago-area branch network, deploying funds into commercial and consumer loans, and supplementing interest income with trust, wealth management, and treasury management fee revenue.
2. Business Segments
Old Second operates as a single bank holding company franchise, offering:
Commercial & Retail Banking: Business and consumer lending, deposit products, and treasury management across the Chicago metropolitan area.
Wealth Management & Trust: Trust administration, investment management, and financial planning services supplementing core banking revenue.
3. Product Portfolio
| Product | Category | Purpose | Why It Matters |
|---|---|---|---|
| Commercial & Industrial Loans | Lending | Financing for Chicago-area businesses | Core earning-asset base tied to a large metro economy |
| Deposits | Funding | Checking, savings, money market, CDs | $5.60 billion deposit base funds lending |
| Trust & Wealth Management | Fee-based | Trust administration, investment management | Diversifies revenue beyond net interest income |
4. Competitive Landscape
Old Second competes in the highly competitive Chicago banking market against numerous community banks, larger regional banks, and national banks, all vying for the same commercial and retail deposit and loan relationships. It differentiates through local decision-making, relationship banking, and a long operating history in its markets, though it lacks the scale advantages of larger regional competitors.
5. Strategic Strengths & Risks
Strengths: Solid profitability ($80.3 million net income) on a $6.90 billion asset base; an established deposit franchise ($5.60 billion) in a large, economically diverse metro market; diversified fee income from trust and wealth management.
Risks: Intense competition from both larger regional banks and smaller community banks in the Chicago market; net interest margin sensitivity to interest rate cycles; and commercial real estate concentration risk common to many Midwest community banks.
6. Financial Overview
| Metric | FY2025 | Strategic Context |
|---|---|---|
| Net income | $80.3 million | Solid profitability for its asset size |
| Total assets | $6.90 billion | Mid-sized regional bank scale |
| Total deposits | $5.60 billion | Substantial deposit funding base |
7. Summary Conclusion
Old Second Bancorp operates a profitable, well-established community/regional banking franchise in the competitive Chicago metro market. Its moat is built on local relationships and deposit stickiness rather than structural barriers, leaving it exposed to intense competition from both larger and smaller banking peers in one of the nation's most contested banking markets.