VOL. XCIV, NO. 247
BEST INVESTING TOOLS COMPARISON
Tool details checked August 23, 2026
Tool Comparison
FullRatio vs Portfolio123
Pick FullRatio if
FullRatio
Free • Paid plans available · Web
- You want stock comparison, dividends, and checklist.
Pick Portfolio123 if
Portfolio123
Free • From $25/mo · Web · API · Desktop
- Delayed quotes won't cut it; you need real-time data
- You want an API so you can script or automate things
- You want quant, stock ideas, and scores.
Skip both if: Neither one clicks with how you research; there are strong third options.
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Our take
The bottom line
FullRatio and Portfolio123 cover a lot of the same ground (6 shared categories, including screeners, data visualizations, and financials), so for the basics you won't go far wrong with either. Portfolio123 simply does more: 19 categories to FullRatio's 10, including quant, stock ideas, and scores. FullRatio counters by being completely free.
What readers say
FullRatio
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Portfolio123
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Key differences at a glance
- Real-time data
- Portfolio123
- Broader coverage
- Portfolio12319 vs 10 categories
- Desktop app
- Portfolio123
- API access
- Portfolio123
- Broker sync
- Portfolio123
- Global coverage
- Portfolio123
See for yourself
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.ShowHide
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.| Attribute | ||
|---|---|---|
| Pricing & plans | ||
Starting price | Free • Paid plans available | Free • From $25/mo |
Free tier | Yes | Yes |
Free trial | — | — |
Plan limits | — | Free Screener & Backtesting Access: duration days: 30 |
| Platforms & access | ||
Web app | Yes | Yes |
Desktop app | No | Yes |
Mobile app | No | No |
API access | No | Yes |
Broker sync | No | Yes |
Integrations | — | Interactive Brokers and Tradier |
| Audience & fit | ||
Experience level | Beginner, Intermediate | Beginner, Intermediate, Advanced |
Best for | — | Retail Traders, Pro Retail +5 more |
Categories covered | 10 | 19 |
Regions | North America | North America, Europe |
| Data & capabilities | ||
Data quality | 3 signals: Latency: 15-min Delayed and End of Day, Granularity: EOD +1 more | 5 signals: Latency: Real-time and End of Day, Granularity: EOD +3 more |
Data partners | — | 4 partners: FactSet, S&P Global Market Intelligence +2 more |
Capabilities | — | 6 signals: Custom formulas, Ranking backtests +4 more |
| Try it | Visit FullRatio | Visit Portfolio123 |
Where each one shines
What FullRatio and Portfolio123 each do best.ShowHide
Where each one shines
What FullRatio and Portfolio123 each do best.What FullRatio does best
- The screener filters stocks by company details, price performance, valuation, dividends, financial statements, liquidity, margins, returns, growth, and scores.
- Company profiles combine delayed prices with TTM and historical financial data, valuation, scores, dividends, and balance-sheet analysis.
- Data Comparison and Bubble Chart views compare several stocks across selected measures.
- Price versus Fair Value charts compare market prices with configurable valuation bands.
- Industry pages provide context for valuation, liquidity, leverage, and return measures.
What Portfolio123 does best
- Build multifactor ranking systems, stock screens, ETF screens, and rules-based strategies.
- Run simulations with custom universes, buy and sell rules, position sizing, hedging, rebalancing, slippage, and commissions.
- Point-in-time data designed to avoid survivorship and look-ahead bias, with fundamentals, estimates, corporate actions, sector and industry classifications, and historical issues.
- Create ranking systems from fundamental, technical, sentiment, and macro factors, including public factor documentation and FRED-linked economic series.
- AI Factor to train machine-learning predictors for expected returns and feed those predictions into rankings, simulations, and asset-level analysis.
Every detail we compared
Every tracked attribute for FullRatio and Portfolio123, side by side.ShowHide
Every detail we compared
Every tracked attribute for FullRatio and Portfolio123, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | Stocks | StocksETFsClosed-End Funds |
Experience | BeginnerIntermediate | BeginnerIntermediateAdvanced |
Target audience | Not specified | Retail TradersPro RetailInstitutional InvestorsAnalystsQuants/DevelopersFinancial AdvisorsStudents/Researchers |
Regions | North America | North AmericaEurope |
Coverage details | Countries: USExchanges: XNAS, XNYS, and XASEIdentifiers: Ticker | Countries: US and CAIdentifiers: Ticker |
| Data | ||
Data freshness | 15-min DelayedEnd of Day | Real-timeEnd of Day |
Data granularity | EOD | EOD |
Data partners | Not specified | FactSetS&P Global Market IntelligenceICE Data ServicesFRED |
| Access & integrations | ||
API protocols | Not specified | REST |
API auth & delivery | Not specified | Auth: APIKeyDocs |
Import methods | Not specified | BrokerOAuthCSV |
Integrations | Not specified | Interactive BrokersTradier |
Export formats | CSV | CSVJSON |
| Plans & trust | ||
Capability signals | Not specified | Custom formulasRanking backtestsUniverse builderBroker syncRebalancingCorrelation |
Vendor & support | FullRatioSupport: Email | Portfolio123Support: Forum |
Curation ratings | Methodology 3/5Reliability 3/5UX 4/5 | Not specified |
Green tags are exclusive to that tool in this comparison.
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.ShowHide
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.| Tier | ||
|---|---|---|
| Free plan | Free | Free“Manage (Free)” |
| Entry paid plan | Subscription“Premium” | $25/mo“Retail Research Plans” |
| Custom / enterprise | — | Contact sales“Professional / API & Data Licenses” |
Questions we keep getting
What's the difference between FullRatio and Portfolio123?
FullRatio leans toward screeners, data visualizations, and stock comparison, while Portfolio123 puts more weight on screeners, data visualizations, and quant. They overlap in 6 categories, so for most people it comes down to workflow preference and price.
How much do FullRatio and Portfolio123 cost?
Good news: both FullRatio and Portfolio123 have free plans, so you can run them side by side and only pay if you hit a wall.
Which is better for beginners: FullRatio or Portfolio123?
Honestly, neither is aimed at beginners. Expect a learning curve either way; that's the trade-off for the depth they offer.
Does FullRatio or Portfolio123 have an API?
Portfolio123 has an API for programmatic access and custom integrations. FullRatio doesn't, so you're working through its interface.
Should I choose FullRatio or Portfolio123?
It depends on what you're after. Pick FullRatio if stock comparison and dividends matter to you; go with Portfolio123 if you'd rather have quant and stock ideas. And if you only need the basics both share, let price decide.
What asset classes do FullRatio and Portfolio123 cover?
Both cover stocks. Portfolio123 adds ETFs and closed-end funds on top.
Does FullRatio or Portfolio123 have real-time data?
Portfolio123 offers real-time data, which matters if you trade actively. FullRatio runs on delayed or end-of-day data, which is perfectly fine for longer-term investors who don't live and die by the tick.
Which covers international markets: FullRatio or Portfolio123?
Portfolio123 has documented international coverage (North America and Europe), so it's the safer bet if you hold non-US stocks. FullRatio is more region-specific, mainly North America.
Can I export data from FullRatio and Portfolio123?
Yes, both export to spreadsheets (CSV), which is handy if you like running your own numbers.
Can FullRatio or Portfolio123 connect to my broker?
Portfolio123 syncs with brokers automatically. With FullRatio, you're entering holdings by hand or importing files.
Which has a better stock screener: FullRatio or Portfolio123?
Both FullRatio and Portfolio123 include stock screeners, and they differ more in interface than raw power; try both and see which one clicks for you.
Can I track my portfolio with FullRatio or Portfolio123?
Portfolio123 handles portfolio tracking. FullRatio is really a research tool; you'd track your portfolio elsewhere.
Keep researching
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Curation & Accuracy
This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).
Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.