★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
Portfolio123 vs ShortSqueeze.com
Start here
Portfolio123
Free • From $25/mo · Web · API · Desktop
- You'd rather start free and only pay if you outgrow it
- You want the cheaper way in: plans start at $25/mo instead of $49.99/mo
- Delayed quotes won't cut it; you need real-time data
Pick ShortSqueeze.com instead if
ShortSqueeze.com
From $49.99/mo · Web
- You care about short interest, something 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.
Our take
The bottom line
Portfolio123 and ShortSqueeze.com cover a lot of the same ground (2 shared categories, screeners and scores), so for the basics you won't go far wrong with either. Portfolio123 simply does more: 19 categories to ShortSqueeze.com's 3, including data visualizations, quant, and stock ideas. ShortSqueeze.com counters by keeping things simpler.
What readers say
Portfolio123
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ShortSqueeze.com
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Key differences at a glance
- Free plan
- Portfolio123
- Cheaper paid plan
- Portfolio123$25/mo vs $49.99/mo
- Broader coverage
- Portfolio12319 vs 3 categories
- Desktop app
- Portfolio123
- API access
- Portfolio123
- Real-time data
- 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 • From $25/mo | From $49.99/mo |
Free tier | Yes | No |
Free trial | — | — |
Plan limits | Free Screener & Backtesting Access: duration days: 30 | — |
| Platforms & access | ||
Web app | Yes | Yes |
Desktop app | Yes | No |
Mobile app | No | No |
API access | Yes | No |
Broker sync | Yes | No |
Integrations | Interactive Brokers and Tradier | — |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | Retail Traders, Pro Retail +5 more | — |
Categories covered | 19 | 3 |
Regions | North America, Europe | North America |
| Data & capabilities | ||
Data quality | 5 signals: Latency: Real-time and End of Day, Granularity: EOD +3 more | Latency: 15-min Delayed and End of Day and Granularity: EOD |
Data partners | 4 partners: FactSet, S&P Global Market Intelligence +2 more | — |
Capabilities | 6 signals: Custom formulas, Ranking backtests +4 more | Universe builder |
| Try it | Visit Portfolio123 | Visit ShortSqueeze.com |
Where each one shines
What Portfolio123 and ShortSqueeze.com each do best.ShowHide
Where each one shines
What Portfolio123 and ShortSqueeze.com each do best.What Portfolio123 does best
- Tools for building multifactor ranking systems, stock screens, ETF screens, and complete rules-based strategies through a web research environment.
- Tools for running simulations and backtests with long historical equity data, custom universes, buy and sell rules, position sizing, hedging, rebalancing, and realistic assumptions.
- Point-in-time data designed to avoid survivorship and look-ahead bias, with fundamentals, estimates, corporate actions, sector and industry classifications, and historical issues.
- Tools for creating 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.
What ShortSqueeze.com does best
- Screening for more than 15,000 U.S.-listed equities across NASDAQ, NYSE, AMEX, OTCBB, and Pink Sheets for short-interest conditions.
- Download support for an Excel Master Spreadsheet with updated market-wide short-interest statistics for member research workflows.
- Two years of rolling historical short-interest data with membership, with older archives available separately.
- Filters for the Short Screener by short interest, days-to-cover, short percent float, short-interest changes, ownership percent, 52-week range, moving averages, sector, industry, volume, and performance.
- Views for reviewing proprietary member lists such as Squeeze Alert, Long Squeeze, Top 100, and Short Squeeze Ranking.
Every detail we compared
Every tracked attribute for Portfolio123 and ShortSqueeze.com, side by side.ShowHide
Every detail we compared
Every tracked attribute for Portfolio123 and ShortSqueeze.com, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsClosed-End Funds | Stocks |
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: US4 exchangesIdentifiers: Ticker |
| Data | ||
Data freshness | Real-timeEnd of Day | 15-min DelayedEnd of Day |
Data granularity | EOD | EOD |
Data partners | FactSetS&P Global Market IntelligenceICE Data ServicesFRED | Not specified |
| Access & integrations | ||
API protocols | REST | Not specified |
API auth & delivery | Auth: APIKeySDKs: PythonDocs | Not specified |
Import methods | BrokerOAuthCSV | Not specified |
Integrations | Interactive BrokersTradier | Not specified |
Export formats | CSVJSON | Excel |
| Plans & trust | ||
Capability signals | Custom formulasRanking backtestsUniverse builderBroker syncRebalancingCorrelation | Universe builder |
Vendor & support | Portfolio123Support: Forum | Wetherill Investment Inc (d/b/a ShortSqueeze)Country: USSupport: Email |
Curation ratings | Not specified | Methodology 2/5Reliability 3/5UX 3/5 |
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“Manage (Free)” | — |
| Entry paid plan | $25/mo“Retail Research Plans” | $49.99/mo“Annual Membership” |
| Top plan | — | $59.99/mo“Monthly Membership” |
| Custom / enterprise | Contact sales“Professional / API & Data Licenses” | — |
Questions we keep getting
What's the difference between Portfolio123 and ShortSqueeze.com?
Portfolio123 leans toward screeners, data visualizations, and quant, while ShortSqueeze.com puts more weight on screeners, short interest, and scores. They overlap in 2 categories, so for most people it comes down to workflow preference and price.
Is Portfolio123 or ShortSqueeze.com free to use?
Portfolio123 has a free tier, so you can get started without paying anything. ShortSqueeze.com is paid-only. If budget matters, start with Portfolio123 and see how far it takes you before opening your wallet.
Does Portfolio123 or ShortSqueeze.com have an API?
Portfolio123 has an API for programmatic access and custom integrations. ShortSqueeze.com doesn't, so you're working through its interface.
Should I choose Portfolio123 or ShortSqueeze.com?
It depends on what you're after. Pick Portfolio123 if data visualizations and quant matter to you; go with ShortSqueeze.com if you'd rather have short interest. And if you only need the basics both share, let price decide.
What asset classes do Portfolio123 and ShortSqueeze.com cover?
Both cover stocks. Portfolio123 also handles ETFs and closed-end funds.
Does Portfolio123 or ShortSqueeze.com have real-time data?
Portfolio123 offers real-time data, which matters if you trade actively. ShortSqueeze.com 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 ShortSqueeze.com?
Portfolio123 has documented international coverage (North America and Europe), so it's the safer bet if you hold non-US stocks. ShortSqueeze.com is more region-specific, mainly North America.
Can I export data from Portfolio123 and ShortSqueeze.com?
Yes, both export to spreadsheets (Portfolio123: CSV; ShortSqueeze.com: Excel), which is handy if you like running your own numbers.
Can Portfolio123 or ShortSqueeze.com connect to my broker?
Portfolio123 syncs with brokers automatically. With ShortSqueeze.com, you're entering holdings by hand or importing files.
Which has a better stock screener: Portfolio123 or ShortSqueeze.com?
Both Portfolio123 and ShortSqueeze.com 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 ShortSqueeze.com?
Portfolio123 handles portfolio tracking. ShortSqueeze.com is really a research tool; you'd track your portfolio elsewhere.
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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.