Old School Value is one of the original platforms built specifically for value investors. It offers valuation models, stock screeners, and analysis tools inspired by Buffett, Graham, and other value investing legends. SafetyMargin.io shares the same philosophy but delivers it through a modern, free web application with forensic accounting and capital allocation tools.
These two platforms target the same investor. Here is how they compare.
Feature Comparison
| Feature | SafetyMargin.io | Old School Value |
|---|---|---|
| DCF Intrinsic Value Calculator | ✓ | ✓ |
| Customizable DCF Assumptions | ✓ | ✓ |
| Multi-Scenario DCF (Bear/Base/Bull) | ✓ | ✗ |
| Reverse DCF (Market-Implied Growth) | ✓ | ✗ |
| Margin of Safety Display | ✓ | ✓ |
| Buffett Signal (Buy/Hold/Sell) | ✓ | ✗ |
| Forensic Accounting (Beneish M-Score) | ✓ | ✗ |
| Altman Z-Score (Bankruptcy Risk) | ✓ | ✗ |
| Sloan Ratio (Earnings Quality) | ✓ | ✗ |
| Owner Earnings (Buffett FCF) | ✓ | ✓ |
| SBC-Adjusted Free Cash Flow | ✓ | ✗ |
| ROIIC (Incremental Capital Returns) | ✓ | ✗ |
| Retained Earnings $1 Test | ✓ | ✗ |
| Buyback Effectiveness Score | ✓ | ✗ |
| Mr. Market Sentiment Gauge | ✓ | ✗ |
| Insider Transaction Tracking | ✓ | ✗ |
| Investment Checklist & Notes | ✓ | ✓ |
| Historical Fundamentals Charts | ✓ | ✓ |
| Graham Number Calculator | ✗ | ✓ |
| Multiple Valuation Models | ✗ | ✓ |
| Stock Screener | ✗ | ✓ |
| Portfolio Tracking | ✗ | ✓ |
| 100% Free Access | ✓ | ✗ |
Where SafetyMargin.io Stands Out
Forensic Accounting
Old School Value focuses on valuation but does not verify the quality of the financial statements behind those valuations. SafetyMargin.io runs three automated forensic tests:
- Beneish M-Score — 8-variable model detecting potential earnings manipulation
- Altman Z-Score — bankruptcy risk quantification
- Sloan Ratio — checks whether earnings are backed by real cash flow
These are essential for avoiding value traps — stocks that look cheap on traditional metrics but have unreliable financials.
Reverse DCF
SafetyMargin.io uniquely answers: "What growth rate is the market already pricing in?" The Reverse DCF uses binary search to find the implied growth expectation and compares it to historical performance. This instantly reveals whether a stock is priced for perfection or priced for pessimism.
Old School Value does not offer this capability.
Capital Allocation Depth
Both platforms offer Owner Earnings, but SafetyMargin.io goes further with SBC-Adjusted FCF (revealing hidden dilution), ROIIC (return on incremental capital), the $1 Retained Earnings Test, and Buyback Effectiveness scoring. These metrics evaluate management quality from multiple angles.
Contrarian Sentiment
The Mr. Market's Mood gauge and Buffett Signal synthesize sentiment data with valuation — a unique combination that helps you time purchases when fear creates opportunity.
Completely Free
Old School Value requires a membership ($60/month or $480/year). SafetyMargin.io provides every feature at no cost.
Where Old School Value Stands Out
Multiple Valuation Models
Old School Value offers several valuation approaches — DCF, Graham Number, Earnings Power Value, and more. This variety helps cross-check valuations from different angles. SafetyMargin.io focuses on DCF with three-scenario modeling.
Stock Screener
Old School Value provides a value-focused screener with pre-built filters inspired by legendary investors. SafetyMargin.io does not have a screener.
Established Community
Old School Value has been serving value investors for over a decade, with educational content and a community of like-minded investors. This institutional knowledge adds context beyond the tools themselves.
Pricing
| SafetyMargin.io | Old School Value | |
|---|---|---|
| Free tier | Full access to all features | Limited trial |
| Premium | N/A (everything is free) | $60/month ($480/year) |
Who Should Use Which?
Choose SafetyMargin.io if you want to:
- Access Buffett-style analysis tools completely free
- Run forensic accounting checks before investing
- Use Reverse DCF to check market expectations
- Evaluate management through capital allocation metrics
Choose Old School Value if you need:
- Multiple valuation model approaches (Graham, EPV, etc.)
- A value-investing-specific stock screener
- Portfolio tracking with value-oriented alerts
Try It Yourself
Search for any stock on AAPL, MSFT, or KO and see the full analysis — completely free.