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 |
|---|---|---|
| Fundamental screening | ✓ | ✓ |
| Technical screening | ✓ | ✓ |
| Real-time scanning | ✓ | ✗ |
| Custom filters | ✓ | ✓ |
| Visual screener/heat maps | ✓ | ✗ |
| Data export | ✗ | ✓ |
| Alerts | ✓ | ✗ |
| Pre-built screens | ✓ | ✓ |
| 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
- + Institutional-grade FactSet data with point-in-time accuracy
- + Deepest fundamental backtesting engine available to retail investors
- + 64 pre-built ranking systems spanning value, growth, quality, and momentum
- + No programming required for quantitative strategies
- + Commission-free live execution via Tradier and Interactive Brokers
Cons
- − Steep learning curve for factor modeling and ranking systems
- − No mobile app — web-only platform
- − Interface is functional but dated compared to modern fintech tools
- − No integrated news feed or social features
- − Charting and technical analysis tools are limited
Our Take
Finviz: Finviz is the fastest way to screen US stocks, and its free tier alone makes it a must-have bookmark for any trader or investor. The heat map is unmatched for instant market visualization. Elite adds real-time data, backtesting, and API access at a fraction of what competitors charge. Charting is its weak spot — pair it with TradingView if you need advanced charts.
Portfolio123: Portfolio123 is the most powerful quantitative screening and backtesting platform available to retail investors. Its combination of institutional-grade FactSet data, 20-year point-in-time backtesting, multi-factor ranking systems, and commission-free broker integration creates genuine analytical depth that no consumer alternative matches. The learning curve is steep and the interface is dated, but for systematic investors willing to invest the time, no other platform delivers this level of quantitative rigor at $25-83/month.
Pricing Comparison
Finviz Pricing
Finviz offers one of the most competitive pricing structures among stock screeners. The free tier — accessible without registration — delivers screening power that rivals many paid platforms. Elite costs thirty-nine fifty per month or two hundred ninety-nine fifty per year, bringing the effective monthly rate to roughly twenty-five dollars. A thirty-day money-back guarantee reduces commitment risk. Compared to Trade Ideas at over one hundred fifty dollars monthly or TradingView Pro+ at roughly thirty dollars, Finviz Elite delivers strong value for traders who prioritize screening and visualization over advanced charting. The annual plan saves approximately one hundred seventy-five dollars versus monthly billing. For most traders, the free tier alone justifies bookmarking Finviz — the paid upgrade makes sense primarily for those who need real-time data, backtesting, and API access.
Portfolio123 Pricing
Portfolio123's pricing is straightforward and competitive for the depth of tooling it provides. The free tier includes broker integration with Tradier and Interactive Brokers, fundamental charting, and a consolidated brokerage account view — useful but limited for research. The Screener plan at $25/month unlocks the full financial database, 460-plus screening metrics, and five years of backtesting data. The Pro plan at $83/month adds 20 years of backtesting, multi-factor ranking systems, rolling screens, position sizing, and API access. Annual billing saves 28% on Retail plans and 23% on Pro plans. A 21-day trial at $19 provides full Pro-level access with 10 years of data and no auto-renewal — a low-risk way to evaluate the platform. For context, Stock Rover Premium Plus costs $28/month with shallower backtesting, while Trade Ideas starts at $118/month for a narrower use case.
What Users Say
Finviz
User sentiment toward Finviz is sharply split between product quality and service quality. Across blog reviews, the platform consistently earns ratings between 3.8 and 4.5 out of 5, with praise centered on screening speed, the heat map, and free-tier generosity. One Trustpilot reviewer called it the "absolute best stock screener and market analysis software in the industry." A long-time Elite subscriber on a trading forum described it as "great" and valued its lightweight performance compared to ThinkorSwim. However, Trustpilot's aggregate score hovers around 3.0, weighed down by billing complaints and slow support. One reviewer reported "blatantly incorrect fundamental data," while others cited email sharing concerns and difficult cancellation processes. The pattern is clear — the tool itself impresses; the company behind it occasionally frustrates.
Portfolio123
User sentiment is overwhelmingly positive among those who invest the time to learn the platform. On Trustpilot (4.8/5, 50 reviews), 88% of ratings are five stars — an unusually high concentration. Users describe it as "the best quant platform for retail users" and "simply the best product for quantitative stock analysis." Several long-term members report that Portfolio123 "genuinely changed my life as an investor," citing the shift from intuition-based to systematic, data-driven decision-making. Professional reviewers at GreatWorkLife and LiberatedStockTrader both award 4.1/5, praising screening depth and backtesting power while noting the learning curve. The sole recurring negative theme is the steep onboarding — not the platform's capability or value. One Trustpilot reviewer gave a single star citing community dynamics, but this is an extreme outlier against 49 four- and five-star ratings.
Choose Finviz if...
- → Value investors and swing traders who screen stocks daily
- → Finviz is ideal for swing traders and active investors who screen stocks daily and value speed over visual polish. If you run fundamental or technical scans regularly — filtering by P/E ratios, RSI levels, or candlestick patterns — Finviz will save you significant time. Budget-conscious traders benefit enormously from the free tier, which outperforms many paid screeners. Technical analysts who rely on pattern recognition will appreciate the automatic detection of over thirty chart patterns. The platform also suits sector rotation traders who use the heat map to identify market trends at a glance. If you need a fast, no-nonsense scanning tool for US equities, Finviz belongs in your daily workflow.
Choose Portfolio123 if...
- → Systematic investors who want quantitative factor-based portfolio construction without coding
- → Portfolio123 is built for self-directed investors who want to take a systematic, data-driven approach to stock selection. If you are interested in building multi-factor ranking systems, screening across hundreds of fundamental and technical metrics, and backtesting strategies against decades of point-in-time data, this platform delivers at a level no consumer alternative matches. Dividend investors and growth-oriented stock pickers benefit especially from the factor library and pre-built screens. Portfolio managers, RIAs, and academic researchers will find institutional-grade FactSet data at a fraction of terminal costs. The platform suits anyone who wants the rigor of quantitative investing without the programming requirements of tools like QuantConnect.
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, technical, and sentiment screening metrics.