

Old Second vs Carlyle Secured Lending
Old Second is a community bank in the Chicago suburbs running a vanilla commercial and retail banking model where every basis point of net interest margin matters. Carlyle Secured Lending deploys private credit as a BDC, earning origination fees and floating-rate interest income on loans to mid-market companies sponsored by private equity. Both generate income from loan portfolios but serve completely different borrowers under completely different structures. The Old Second vs Carlyle Secured Lending comparison sizes up credit risk concentration, fee income, dividend sustainability, and which income story holds up better across a full rate and credit cycle.
Old Second is a community bank in the Chicago suburbs running a vanilla commercial and retail banking model where every basis point of net interest margin matters. Carlyle Secured Lending deploys priv...
Investment Analysis

Old Second
OSBC
Pros
- Old Second Bancorp reported a strong Q2 2025 net income of $21.8 million, demonstrating profitability.
- Completed merger with Bancorp Financial in mid-2025, potentially enhancing scale and market reach.
- Provides senior secured credit facilities, showing capability in supporting leveraged acquisitions.
Considerations
- Exposure to regional banking risks given its primary operations through Old Second National Bank.
- Relies heavily on commercial banking activities, which may be vulnerable to economic downturns.
- Integration risks remain following recent merger, with operational and cultural challenges possible.
Pros
- Specializes in senior secured loans targeting middle-market companies with EBITDA between $25M and $100M.
- Diversified investment across various industries including healthcare, aerospace, and technology.
- Operates across multiple geographies including the US, UK, Luxembourg, Cayman Islands, and Cyprus.
Considerations
- Externally managed structure may lead to higher operating costs compared to internally managed peers.
- Concentrated exposure to credit risk in middle-market companies, which could be sensitive to economic shifts.
- Faces competition from more efficient BDCs with internal management and diversified investment strategies.
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