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Old Second Bancorp Inc. (OSBC) Fundamental Analysis & AI Grade 2026

OSBC Nasdaq State Commercial Banks DE CIK: 0000357173
Updated This Month • Analysis: May 8, 2026 • SEC Data: 2026-03-31
Combined AI Grade
B
64% Confidence
STRONG AGREEMENT
B
58% Conf
B
70% Conf

📊 OSBC Key Takeaways

Revenue: $98.3M
Net Margin: 26.0%
Free Cash Flow: $36.2M
Current Ratio: N/A
Debt/Equity: 0.07x
EPS: $0.48
AI Grade: B with 58% confidence
Old Second Bancorp Inc. (OSBC) receives a B fundamental grade with 64% confidence from our AI analysis based on SEC 10-K filings. With revenue of $98.3M, net profit margin of 26.0%, and return on equity (ROE) of 2.9%, Old Second Bancorp Inc. demonstrates mixed fundamentals in the Finance sector. Below is our complete OSBC stock analysis for 2026.

Is Old Second Bancorp Inc. (OSBC) a Good Investment?

Claude

Old Second Bancorp shows strong revenue growth at 21.2% YoY but faces concerning profitability headwinds with net income and EPS declining despite top-line expansion, indicating potential margin compression or credit quality issues. While the balance sheet is conservatively positioned with minimal leverage and cash generation remains healthy, the extremely weak ROE of 2.9% and ROA of 0.4% signal inefficient capital deployment that requires resolution before the company becomes attractive.

ChatGPT

Old Second Bancorp shows solid core profitability and balance sheet strength, with 21% revenue growth, ROA of 1.2%, low long‑term debt, and strong cash generation. However, net income and EPS declined year over year despite higher revenue, indicating margin compression and/or higher credit costs, while ROE of 9% is only moderate. Fundamentals appear stable but not accelerating, warranting a neutral stance while monitoring earnings quality.

Old Second Bancorp Inc. Key Strengths (OSBC)

Claude
  • + Strong revenue growth of 21.2% YoY demonstrates market share gains and organic expansion
  • + Excellent balance sheet with debt/equity ratio of 0.07x and conservative capital structure
  • + Healthy free cash flow generation at $36.2M with robust FCF margin of 36.8%
ChatGPT
  • + Strong top-line growth (+21% YoY) with healthy operating margin (30%).
  • + Solid profitability for a community bank (ROA 1.2%) and robust free cash flow.
  • + Conservative leverage and coverage (Debt/Equity 0.07x, interest coverage 10.1x).

OSBC Stock Risks: Old Second Bancorp Inc. Investment Risks

Claude
  • ! Profitability deteriorating: net income down 5.8% and EPS down 13.4% YoY despite revenue growth, indicating margin compression or cost inflation
  • ! Critically low ROE of 2.9% and ROA of 0.4% suggest poor capital efficiency and potential asset quality concerns
  • ! Earnings per share declining significantly signals weakening shareholder value creation
ChatGPT
  • ! Net income and EPS contraction despite revenue growth suggests margin pressure.
  • ! Potential rise in credit costs (provisions and charge-offs) could weigh on earnings.
  • ! Deposit cost and mix pressures in a changing rate environment may compress NIM.

Key Metrics to Watch

Claude
  • * Net income margin trend and root causes of operating cost inflation
  • * Non-performing asset ratio and loan loss reserve adequacy
  • * Return on equity and return on assets trajectory toward normalized levels
ChatGPT
  • * Net interest margin (NIM)
  • * Credit costs (provision expense and net charge-offs)

Old Second Bancorp Inc. (OSBC) Financial Metrics & Key Ratios

Revenue
$98.3M
Net Income
$25.6M
EPS (Diluted)
$0.48
Free Cash Flow
$36.2M
Total Assets
$6.8B
Cash Position
$115.7M

💡 AI Analyst Insight

The 36.8% free cash flow margin provides substantial flexibility for dividends, buybacks, and strategic investments. The current ratio below 1.0x warrants monitoring of short-term liquidity.

OSBC Profit Margin, ROE & Profitability Analysis

Gross Margin N/A
Operating Margin 34.6%
Net Margin 26.0%
ROE 2.9%
ROA 0.4%
FCF Margin 36.8%

OSBC vs Finance Sector: How Old Second Bancorp Inc. Compares

How Old Second Bancorp Inc. compares to Finance sector averages

Net Margin
OSBC 26.0%
vs
Sector Avg 25.0%
OSBC Sector
ROE
OSBC 2.9%
vs
Sector Avg 12.0%
OSBC Sector
Current Ratio
OSBC 0.0x
vs
Sector Avg 1.2x
OSBC Sector
Debt/Equity
OSBC 0.1x
vs
Sector Avg 2.0x
OSBC Sector

Sector benchmarks are approximate industry averages. Actual sector performance may vary.

Is Old Second Bancorp Inc. Stock Overvalued? OSBC Valuation Analysis 2026

Based on fundamental analysis, Old Second Bancorp Inc. has mixed fundamental signals relative to the Finance sector in 2026.

Return on Equity
2.9%
Sector avg: 12%
Net Profit Margin
26.0%
Sector avg: 25%
Revenue Growth
N/A
Year-over-year
Debt/Equity
0.07x
Sector avg: 2x

Note: This is a fundamental analysis based on SEC filings. For P/E ratio, price targets, and market-based valuation, consult financial data providers. This is not investment advice.

Old Second Bancorp Inc. Balance Sheet: OSBC Debt, Cash & Liquidity

Current Ratio
N/A
Quick Ratio
N/A
Debt/Equity
0.07x
Debt/Assets
87.0%
Interest Coverage
3.20x
Long-term Debt
$59.6M

OSBC Revenue & Earnings Growth: 5-Year Financial Trend

OSBC 5-year financial data:
Revenue
Net Income
EPS (right axis)

5-Year Trend Summary: Old Second Bancorp Inc.'s revenue has remained relatively flat over the 5-year period, with a 0% decline. The most recent EPS of $2.02 reflects profitable operations.

OSBC Revenue Growth, EPS Growth & YoY Performance

Revenue Growth
N/A
Year-over-year
Net Income Growth
N/A
Year-over-year
EPS Growth
N/A
Earnings per share
FCF Margin
36.8%
Free cash flow / Revenue

Old Second Bancorp Inc. Dividends, Buybacks & Capital Allocation

Operating Cash Flow
$36.9M
Cash generated from operations
Stock Buybacks
$24.5M
Shares repurchased (TTM)
Capital Expenditures
$769.0K
Investment in assets
Dividends Paid
$3.7M
Returned to shareholders

OSBC SEC Filings: Latest 10-K & 10-Q Analysis

Access official SEC EDGAR filings for Old Second Bancorp Inc. (CIK: 0000357173)

📋 Recent SEC Filings

Date Form Document Action
May 26, 2026 4 xslF345X06/form4-05262026_080546.xml View →
May 21, 2026 4 xslF345X06/form4-05212026_090522.xml View →
May 20, 2026 8-K osbc-20260519x8k.htm View →
May 19, 2026 8-K osbc-20260519x8k.htm View →
May 12, 2026 4 xslF345X06/form4-05122026_010520.xml View →

Frequently Asked Questions about OSBC

What is the AI rating for OSBC?

Old Second Bancorp Inc. (OSBC) has a Combined AI Grade of B from Claude (B) and ChatGPT (B) with 64% combined confidence, based on fundamental analysis of SEC EDGAR filings.

What are OSBC's key strengths?

Claude: Strong revenue growth of 21.2% YoY demonstrates market share gains and organic expansion. Excellent balance sheet with debt/equity ratio of 0.07x and conservative capital structure. ChatGPT: Strong top-line growth (+21% YoY) with healthy operating margin (30%).. Solid profitability for a community bank (ROA 1.2%) and robust free cash flow..

What are the risks of investing in OSBC?

Claude: Profitability deteriorating: net income down 5.8% and EPS down 13.4% YoY despite revenue growth, indicating margin compression or cost inflation. Critically low ROE of 2.9% and ROA of 0.4% suggest poor capital efficiency and potential asset quality concerns. ChatGPT: Net income and EPS contraction despite revenue growth suggests margin pressure.. Potential rise in credit costs (provisions and charge-offs) could weigh on earnings..

What is OSBC's revenue and growth?

Old Second Bancorp Inc. reported revenue of $98.3M.

Does OSBC pay dividends?

Old Second Bancorp Inc. pays dividends, with $3.7M distributed to shareholders in the trailing twelve months.

Where can I find OSBC SEC filings?

Official SEC filings for Old Second Bancorp Inc. (CIK: 0000357173) including 10-K, 10-Q, and 8-K reports are available on SEC EDGAR.

What is OSBC's EPS?

Old Second Bancorp Inc. has a diluted EPS of $0.48.

How is the AI analysis conducted?

Two independent AI systems — Claude (Anthropic) and ChatGPT (OpenAI) — analyze SEC EDGAR filings including 10-K annual reports and 10-Q quarterly reports. Each AI evaluates financial health, profitability ratios, balance sheet strength, and growth metrics. The combined grade reflects both perspectives for balanced insights.

What is OSBC's fundamental grade?

Based on our AI fundamental analysis in May 2026, Old Second Bancorp Inc. has a B grade with 64% confidence. Review the strengths and risks sections above for full context. This is not investment advice.

Is OSBC stock overvalued or undervalued?

Valuation metrics for OSBC: ROE of 2.9% (sector avg: 12%), net margin of 26.0% (sector avg: 25%). Compare these metrics with sector averages to assess valuation.

What is OSBC's AI grade for 2026?

Our dual AI analysis gives Old Second Bancorp Inc. a combined B grade for 2026. Revenue is data pending, with profitability above sector average. Always conduct your own research.

What is OSBC's free cash flow?

Old Second Bancorp Inc.'s operating cash flow is $36.9M, with capital expenditures of $769.0K. FCF margin is 36.8%.

How does OSBC compare to other Finance stocks?

Vs Finance sector averages: Net margin 26.0% (avg: 25%), ROE 2.9% (avg: 12%), current ratio N/A (avg: 1.2).

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Disclaimer: This analysis is generated by Claude AI (Anthropic) and ChatGPT (OpenAI) based on publicly available SEC EDGAR filings. It does not include stock price data and should not be considered financial advice. All fundamental data is sourced from SEC public domain filings. Always conduct your own research and consult with a qualified financial advisor before making investment decisions.
Data Source: SEC EDGAR | Analysis Date: May 8, 2026 | Data as of: 2026-03-31 | Powered by Claude AI