Finviz 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 | Finviz | Portfolio123 |
|---|---|---|
| Stock screener with 60+ filters (fundamental + technical) | ✓ | ✗ |
| Visual market heat map by sector and performance | ✓ | ✗ |
| Real-time quotes and pre/post-market data (Elite) | ✓ | ✗ |
| Backtesting with custom screening criteria (Elite) | ✓ | ✗ |
| Correlation analysis across stocks (Elite) | ✓ | ✗ |
| Insider trading tracker | ✓ | ✗ |
| Futures and forex data | ✓ | ✗ |
| IPO calendar | ✓ | ✗ |
| News aggregation by ticker | ✓ | ✗ |
| Portfolio tracking | ✓ | ✗ |
| 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 |
Finviz Pros & Cons
Pros
- + Best stock screener for speed and simplicity
- + Heat map gives instant market overview
- + Free tier is powerful enough for most investors
- + Fast loading — no bloated UI
- + 60+ filters cover fundamental and technical analysis
- + Insider trading data is valuable
Cons
- − Web-only — no desktop or mobile app
- − Free tier has delayed data (15-20 minutes)
- − Charting is basic compared to TradingView
- − Limited to US stocks (no international markets)
- − No options data
- − UI design feels dated
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 Finviz if...
- → Value investors and swing traders who screen stocks daily
- → You value: best stock screener for speed and simplicity
- → You value: heat map gives instant market overview
- → You value: free tier is powerful enough for most investors
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 Finviz and Portfolio123?
Finviz is best known for: Financial Visualizations — Stock Screener, Maps, and Analysis. Portfolio123 focuses on: Quantitative stock screening and portfolio backtesting for systematic investors.
Which is cheaper, Finviz or Portfolio123?
Finviz offers a free tier. Portfolio123 also offers a free tier.
Can I use Finviz and Portfolio123 together?
Yes, many traders use both tools as they serve complementary purposes. Finviz excels at stock screener with 60+ filters (fundamental + technical), while Portfolio123 is strong in 460+ fundamental and technical screening factors.