ChartMill vs Portfolio123
A detailed comparison to help you choose the right tool in 2026.
Portfolio123
Quantitative stock screening and portfolio backtesting for systematic investors
Free plan available
Feature Comparison
| Feature | ChartMill | Portfolio123 |
|---|---|---|
| Automated chart pattern recognition | ✓ | ✗ |
| Candlestick pattern detection | ✓ | ✗ |
| Breakout and setup scanning | ✓ | ✗ |
| US and European stock coverage | ✓ | ✗ |
| Fundamental screening filters | ✓ | ✗ |
| Visual heat maps and sector analysis | ✓ | ✗ |
| Squeeze and momentum screeners | ✓ | ✗ |
| Dividend screening tools | ✓ | ✗ |
| 460+ fundamental and technical screening factors | ✗ | ✓ |
| Multi-factor ranking systems | ✗ | ✓ |
| 20+ year portfolio backtesting | ✗ | ✓ |
| Model portfolios with auto-rebalancing | ✗ | ✓ |
| Factor-based stock scoring | ✗ | ✓ |
| Universe creation and management | ✗ | ✓ |
| Book simulation for live tracking | ✗ | ✓ |
| API for data export | ✗ | ✓ |
| Starting Price | Free | Free |
ChartMill Pros & Cons
Pros
- + Excellent chart pattern recognition engine
- + Covers both US and European markets
- + Clean visual interface for quick scanning
- + Affordable compared to competitors
- + Good free tier for basic screening
Cons
- − No options or crypto coverage
- − Charting is basic compared to TradingView
- − No mobile app
- − Limited alert functionality
- − Smaller community and fewer educational resources
Portfolio123 Pros & Cons
Pros
- + Deepest quantitative screening available to retail investors
- + 20+ year backtesting period for robust validation
- + Model portfolios auto-rebalance on schedule
- + No programming required for quantitative strategies
- + Comprehensive factor library
Cons
- − Pro plan is expensive at $83/month
- − Steep learning curve for factor modeling
- − US stocks only
- − Interface is functional but dated
- − No charting or technical analysis tools
Choose ChartMill if...
- → Swing traders who trade chart patterns
- → You value: excellent chart pattern recognition engine
- → You value: covers both us and european markets
- → You value: clean visual interface for quick scanning
Choose Portfolio123 if...
- → Systematic investors who want quantitative factor-based portfolio construction
- → You value: deepest quantitative screening available to retail investors
- → You value: 20+ year backtesting period for robust validation
- → You value: model portfolios auto-rebalance on schedule
Frequently Asked Questions
What is the main difference between ChartMill and Portfolio123?
ChartMill is best known for: Visual stock screener with chart pattern recognition. Portfolio123 focuses on: Quantitative stock screening and portfolio backtesting for systematic investors.
Which is cheaper, ChartMill or Portfolio123?
ChartMill offers a free tier. Portfolio123 also offers a free tier.
Can I use ChartMill and Portfolio123 together?
Yes, many traders use both tools as they serve complementary purposes. ChartMill excels at automated chart pattern recognition, while Portfolio123 is strong in 460+ fundamental and technical screening factors.