★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
Portfolio123 vs WhaleWisdom
Pick Portfolio123 if
Portfolio123
Best for data visualizations and quant
Free • From $25/mo · Web · API · Desktop · 75% positive (4 votes)
- Delayed quotes won't cut it; you need real-time data
- You care about data visualizations, quant, and scores, things WhaleWisdom doesn't offer
Pick WhaleWisdom if
WhaleWisdom
Best for institutional ownership and insider data
Free • From $300/yr · Web · API · Desktop · 100% positive (1 vote)
- You care about institutional ownership, insider data, and alerts, things Portfolio123 doesn't offer
Skip both if: Neither one clicks with how you research; there are strong third options.
See alternativesOutbound links may include affiliate or sponsor codes.
The verdict
The bottom line
Portfolio123 and WhaleWisdom cover a lot of the same ground (4 shared categories, including screeners, stock ideas, and backtesting), so for the basics you won't go far wrong with either. Portfolio123 simply does more: 19 categories to WhaleWisdom's 8, including data visualizations, quant, and scores. WhaleWisdom counters by keeping things simpler.
Key differences at a glance
- Real-time data
- Portfolio123
- Broader coverage
- Portfolio12319 vs 8 categories
- Global coverage
- Portfolio123
- Asset coverage
- WhaleWisdomAdds bonds and options
- Free plan
- Both
Comparison snapshot
| Attribute | ||
|---|---|---|
| Pricing & plans | ||
Starting price | Free • From $25/mo | Free • From $300/yr |
Free tier | Yes | Yes |
Free trial | — | — |
Plan limits | Free Screener & Backtesting Access: duration days: 30 | — |
| Platforms & access | ||
Web app | Yes | Yes |
Desktop app | Yes | Yes |
Mobile app | No | No |
API access | Yes | Yes |
Broker sync | Yes | — |
Integrations | Interactive Brokers and Tradier | WhaleWisdom Excel Add-in, Microsoft Office Store add-in +1 more |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | Retail Traders, Pro Retail +5 more | — |
Categories covered | 19 | 8 |
Regions | North America, Europe | North America |
| Data & capabilities | ||
Data quality | 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 | — |
Security | — | Data residency: US |
| Try it | Visit Portfolio123 | Visit WhaleWisdom |
Standout features
What Portfolio123 does best
- Build multifactor ranking systems, stock screens, ETF screens, and complete rules-based strategies through a web research environment.
- Run simulations and backtests with long historical equity data, custom universes, buy and sell rules, position sizing, hedging, rebalancing, and realistic assumptions.
- Use 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.
- Use AI Factor to train machine-learning predictors for expected returns and feed those predictions into rankings, simulations, and asset-level analysis.
What WhaleWisdom does best
- Track SEC filing datasets including 13F reports, Schedule 13D/G events, Form 4 insider transactions, Form D, Form 144, N-CEN, and Form ADV tools.
- Follow hedge funds, institutional filers, stock holders, filer groups, and stock watchlists from a dedicated holdings research workflow.
- Review 13F history back to Q1 2001 on paid plans, while free access focuses on recent history and smaller limits.
- Use WhaleIndex, WhaleScore, WhaleTrader, Combined Holdings, and insider backtesting features on eligible paid plans.
- Export holdings and dashboard data through CSV, Excel, JSON, and the WhaleWisdom Excel Add-in depending on plan.
Data & access details
| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsClosed-End Funds | StocksETFsClosed-End FundsBondsOptions |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Retail TradersPro RetailInstitutional InvestorsAnalystsQuants/DevelopersFinancial AdvisorsStudents/Researchers | Not specified |
Regions | North AmericaEurope | North America |
Coverage details | Countries: US and CAIdentifiers: Ticker | Countries: USIdentifiers: Ticker, CUSIP, and CIK |
| Data | ||
Data freshness | Real-timeEnd of Day | Not specified |
Data granularity | EOD | Not specified |
Data partners | FactSetS&P Global Market IntelligenceICE Data ServicesFRED | Not specified |
| Access & integrations | ||
API protocols | REST | REST |
API auth & delivery | Auth: APIKeySDKs: PythonDocs | Auth: APIKey20 req/minDocs |
Import methods | BrokerOAuthCSV | Not specified |
Integrations | Interactive BrokersTradier | WhaleWisdom Excel Add-inMicrosoft Office Store add-inNightly FTP bulk files for Enterprise |
Export formats | CSVJSON | CSVExcelJSON |
| Plans & trust | ||
Security & compliance | Not specified | Data residency: US |
Capability signals | Custom formulasRanking backtestsUniverse builderBroker syncRebalancingCorrelation | Not specified |
Vendor & support | Portfolio123Support: Forum | WhaleWisdom, LLCCountry: United StatesSupport: Email |
Curation ratings | Not specified | Methodology 3/5Reliability 3/5UX 3/5 |
Green tags are exclusive to that tool in this comparison.
Pricing breakdown
$25/mo
Starting price
Plans & pricing
- duration days: 30
$300/yr
Starting price
Plans & pricing
Coverage overlap
Shared categories
4Where the two tools cover the same ground.
Portfolio123 strengths
15WhaleWisdom strengths
4What you only get with WhaleWisdom.
Community category leaders
Vote sentiment comparison
Loading sentiment chart...
Frequently Asked Questions
What's the difference between Portfolio123 and WhaleWisdom?
Portfolio123 leans toward screeners, data visualizations, and quant, while WhaleWisdom puts more weight on institutional ownership, insider data, and stock ideas. They overlap in 4 categories, so for most people it comes down to workflow preference and price.
How much do Portfolio123 and WhaleWisdom cost?
Good news: both Portfolio123 and WhaleWisdom have free plans, so you can run them side by side and only pay if you hit a wall.
Do Portfolio123 and WhaleWisdom have APIs?
Yes, both offer API access, so developers and quants can pull data programmatically or wire up their own integrations.
Should I choose Portfolio123 or WhaleWisdom?
It depends on what you're after. Pick Portfolio123 if data visualizations and quant matter to you; go with WhaleWisdom if you'd rather have institutional ownership and insider data. And if you only need the basics both share, let price decide.
What asset classes do Portfolio123 and WhaleWisdom cover?
Both cover stocks, ETFs, and closed-end funds. WhaleWisdom adds bonds and options on top.
Does Portfolio123 or WhaleWisdom have real-time data?
Portfolio123 offers real-time data, which matters if you trade actively. WhaleWisdom 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: Portfolio123 or WhaleWisdom?
Portfolio123 has documented international coverage (North America and Europe), so it's the safer bet if you hold non-US stocks. WhaleWisdom is more region-specific, mainly North America.
Can I export data from Portfolio123 and WhaleWisdom?
Yes, both export to spreadsheets (CSV), which is handy if you like running your own numbers.
Which has a better stock screener: Portfolio123 or WhaleWisdom?
Both Portfolio123 and WhaleWisdom 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 Portfolio123 or WhaleWisdom?
Portfolio123 handles portfolio tracking. WhaleWisdom is really a research tool; you'd track your portfolio elsewhere.
Other tools you might like
These profiles share overlapping coverage with both sides of this matchup.
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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.