Finviz is a popular screening and visualization tool known for its stock screener, heat maps, and snapshot pages. SafetyMargin.io is a focused analytical toolkit designed for value investors who want to run DCF models, verify financial statement integrity, and analyze capital allocation quality.
Both are popular free tools, but they serve different needs.
Feature Comparison
| Feature | SafetyMargin.io | Finviz |
|---|---|---|
| DCF Intrinsic Value Calculator | ✓ | ✗ |
| Multi-Scenario DCF (Bear/Base/Bull) | ✓ | ✗ |
| Margin of Safety Display | ✓ | ✗ |
| Reverse DCF (Market-Implied Growth) | ✓ | ✗ |
| 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 | ✓ | ✗ |
| Stock Screener | ✗ | ✓ |
| Heat Maps | ✗ | ✓ |
| Technical Chart Patterns | ✗ | ✓ |
| Sector/Industry Grouping | ✗ | ✓ |
| Futures & Forex Data | ✗ | ✓ |
| 100% Free Access | ✓ | Partial |
Where SafetyMargin.io Stands Out
Deep Valuation Analysis
Finviz shows you a snapshot of key metrics — P/E, P/B, P/S, P/FCF, and more — on a single page. This is useful for quick screening, but it does not help you calculate what a stock is actually worth.
SafetyMargin.io provides a full DCF calculator with three-scenario modeling, a Reverse DCF that reveals market-implied expectations, and a margin of safety gauge that shows exactly how much cushion exists between price and intrinsic value.
Finviz tells you the price. SafetyMargin.io tells you whether the price makes sense.
Forensic Accounting
Finviz does not analyze the reliability of financial statements. SafetyMargin.io runs three automated forensic tests:
- Beneish M-Score — 8-variable model that detects potential earnings manipulation
- Altman Z-Score — bankruptcy risk predictor
- Sloan Ratio — checks whether reported earnings are backed by real cash flow
These help you avoid value traps where cheap metrics mask deteriorating fundamentals.
Capital Allocation Suite
For Buffett-style investors, understanding how management deploys cash is as important as how much cash a business generates. SafetyMargin.io tracks Owner Earnings, ROIIC, SBC-Adjusted FCF, the $1 Retained Earnings Test, and Buyback Effectiveness — none of which Finviz provides.
Historical Trends
Finviz focuses on point-in-time snapshots. SafetyMargin.io charts multi-year trends across 20+ fundamental metrics so you can assess whether a business is improving, stable, or deteriorating.
Where Finviz Stands Out
Stock Screener
Finviz has one of the best free stock screeners available. Filter by over 60 fundamental, technical, and descriptive criteria to quickly narrow down a universe of stocks. SafetyMargin.io does not have a screener.
Heat Maps
The sector heat map gives you an instant visual read on market-wide performance. This is great for identifying which sectors are leading or lagging on any given day.
Technical Analysis
Finviz offers chart pattern recognition, technical indicators, and pattern-based screening. For investors who blend fundamental and technical analysis, Finviz covers the technical side well.
Breadth
Finviz covers US stocks, ETFs, futures, and forex. SafetyMargin.io focuses on S&P 500 individual stock fundamental analysis.
Pricing
| SafetyMargin.io | Finviz | |
|---|---|---|
| Free tier | Full access to all features | Screener + snapshots with ads |
| Premium | N/A (everything is free) | $39.50/month ($299.50/year) |
Finviz Elite adds real-time data, advanced charts, backtesting, and correlation analysis.
Who Should Use Which?
Use both together. Finviz and SafetyMargin.io are natural complements:
- Finviz to screen and find candidates (e.g. P/E < 15, ROE > 15%, FCF positive)
- SafetyMargin.io to analyze those candidates in depth (DCF, forensics, capital allocation)
Choose SafetyMargin.io when you want to:
- Calculate intrinsic value with a customizable DCF model
- Run forensic accounting checks on financial statements
- Evaluate management quality through capital allocation analysis
- Make buy/sell decisions with Buffett-style frameworks
Choose Finviz when you need:
- A powerful stock screener to generate investment ideas
- Sector heat maps and market-wide visualization
- Technical chart analysis and pattern screening
- Quick snapshot comparisons across many stocks
Try It Yourself
Search for any stock on AAPL, MSFT, or KO and see the full analysis — completely free.