BEST INVESTING TOOLS COMPARISON

Checking

Checked September 24, 2026

Tool Comparison

ETF Action vs Portfolio123

Paid from
$29/mo
Free plan
Yes
Platforms
Web

Best if

  • You want ETF analysis, ETF factors, and ETF overlap.
Paid from
$25/mo
Free plan
Yes
Platforms
Web, API, Desktop

Best if

  • You want the cheaper way in: plans start at $25/mo instead of $29/mo
  • Delayed quotes won't cut it; you need real-time data
  • You want an API so you can script or automate things

Pick ETF Action if

ETF Action logo

ETF Action

etfaction.com

Free • From $29/mo · Web

  • You want ETF analysis, ETF factors, and ETF overlap.

Pick Portfolio123 if

Portfolio123 logo

Portfolio123

portfolio123.comTested

Free • From $300/yr · Web · API · Desktop

  • You want the cheaper way in: plans start at $25/mo instead of $29/mo
  • Delayed quotes won't cut it; you need real-time data
  • You want an API so you can script or automate things

Skip both if: Neither one clicks with how you research; there are strong third options.

See alternatives

Other tools you might like

Outbound links may include affiliate or sponsor codes.

Not set on either one? See the top 50 tools, ranked by user votes, or the deals page for big discounts on popular tools.

Our take

The bottom line

ETF Action and Portfolio123 cover a lot of the same ground (6 shared categories, including data visualizations, portfolio, and watchlist), so for the basics you won't go far wrong with either. Portfolio123 simply does more: 19 categories to ETF Action's 12, including screeners, quant, and stock ideas. ETF Action counters by keeping things simpler.

What readers say

ETF Action

No votes yet. Cast the first one.

Portfolio123

No votes yet. Cast the first one.

Key differences at a glance

Cheaper paid plan
Portfolio123$25/mo vs $29/mo
Broader coverage
Portfolio12319 vs 12 categories
Desktop app
Portfolio123
API access
Portfolio123
Real-time data
Portfolio123
Broker sync
Portfolio123
See the full side-by-side table
ETF Action logo

What ETF Action does best

  1. Research ETFs by size and style, region, country, sector, industry, theme, fixed income, non-traditional assets, commodities, and crypto.
  2. Look-through holdings analytics to inspect factor, style, sector, industry, country, and concentration exposure inside funds and models.
  3. Comparison tools for ETF overlap across individual funds or full model portfolios to understand hidden duplication and concentration risk.
  4. Monitor ETF flows, trading volume, average daily volume, and daily data updates from platform dashboards.
  5. Screeners, watchlists, fund dashboards, and Excel exports are available subject to plan limits.
Portfolio123 logo

What Portfolio123 does best

  1. Build multifactor ranking systems, stock screens, ETF screens, and rules-based strategies.
  2. Run simulations with custom universes, buy and sell rules, position sizing, hedging, rebalancing, slippage, and commissions.
  3. Point-in-time data designed to avoid survivorship and look-ahead bias, with fundamentals, estimates, corporate actions, sector and industry classifications, and historical issues.
  4. Create ranking systems from fundamental, technical, sentiment, and macro factors, including public factor documentation and FRED-linked economic series.
  5. AI Factor to train machine-learning predictors for expected returns and feed those predictions into rankings, simulations, and asset-level analysis.

Side by side

Pricing & plans
Starting price
Free • From $29/mo
Free • From $300/yr
Free tier
Yes
Yes
Free trial
—
—
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
Coverage & data
Asset types
ETFsStocks
StocksETFsClosed-End Funds
Target audience
Not specified
Retail TradersPro RetailInstitutional InvestorsAnalystsQuants/DevelopersFinancial AdvisorsStudents/Researchers
Data freshness
End of Day
Real-timeEnd of Day
Data granularity
EOD
EOD
Export formats
ExcelPDF
CSVJSON

Pricing comparison

Tier
Portfolio123Cheaper start
Free plan
Free
Free“Manage (Free)”
Entry paid plan
$29/mo“DIY”
$300/yr≈ $25/mo“Screener (Annual)”
Tier 2
$99/mo“Advisor Pro”
$35/mo“Screener (Monthly)”
Tier 3
$199/mo“Model Builder”
$1000/yr≈ $83.33/mo“Backtest (Annual)”
Tier 4
—
$116/mo“Backtest (Monthly)”
Tier 5
—
$1500/yr≈ $125/mo“Portfolio (Annual)”
Tier 6
—
$174/mo“Portfolio (Monthly)”
Tier 7
—
$2400/yr≈ $200/mo“Ultimate (Annual)”
Top plan
—
$278/mo“Ultimate (Monthly)”
Custom / enterprise
Contact sales“Enterprise”
Contact sales“Professional / API & Data Licenses”

See for yourself

Side by side

Price, platforms, data, and market coverage.
Show
Side-by-side comparison of ETF Action and Portfolio123
Attribute
ETF Action logo
ETF Action
Portfolio123 logo
Portfolio123
Pricing & plans
Starting price
Free • From $29/moFree • From $300/yr
Free tier
YesYes
Free trial
——
Plan limits
—25 limits: Free Screener & Backtesting Access: duration days: 30, Screener (Annual): backtest history years: 5 +23 more
Platforms & access
Web app
YesYes
Desktop app
NoYes
Mobile app
NoNo
API access
NoYes
Broker sync
NoYes
Integrations
—Interactive Brokers and Tradier
Audience & fit
Experience level
Beginner, Intermediate, AdvancedBeginner, Intermediate, Advanced
Best for
—Retail Traders, Pro Retail +5 more
Categories covered
1219
Regions
North America, Europe, APAC, LatAm, Middle East, AfricaNorth America, Europe
Data & capabilities
Data quality
4 signals: Latency: End of Day, Granularity: EOD +2 more5 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
5 signals: Universe builder, Factors: Value, Quality, Momentum, Growth, LowVol, and Size +3 more6 signals: Custom formulas, Ranking backtests +4 more
Try itVisit ETF ActionVisit Portfolio123

Standout features

The best features of ETF Action and Portfolio123.
Show
ETF Action logo

What ETF Action does best

  1. Research ETFs by size and style, region, country, sector, industry, theme, fixed income, non-traditional assets, commodities, and crypto.
  2. Look-through holdings analytics to inspect factor, style, sector, industry, country, and concentration exposure inside funds and models.
  3. Comparison tools for ETF overlap across individual funds or full model portfolios to understand hidden duplication and concentration risk.
  4. Monitor ETF flows, trading volume, average daily volume, and daily data updates from platform dashboards.
  5. Screeners, watchlists, fund dashboards, and Excel exports are available subject to plan limits.
Portfolio123 logo

What Portfolio123 does best

  1. Build multifactor ranking systems, stock screens, ETF screens, and rules-based strategies.
  2. Run simulations with custom universes, buy and sell rules, position sizing, hedging, rebalancing, slippage, and commissions.
  3. Point-in-time data designed to avoid survivorship and look-ahead bias, with fundamentals, estimates, corporate actions, sector and industry classifications, and historical issues.
  4. Create ranking systems from fundamental, technical, sentiment, and macro factors, including public factor documentation and FRED-linked economic series.
  5. AI Factor to train machine-learning predictors for expected returns and feed those predictions into rankings, simulations, and asset-level analysis.

All details

Every attribute we track for ETF Action and Portfolio123.
Show
Attribute
ETF Action logo
ETF Action
Portfolio123 logo
Portfolio123
Coverage & fit
Asset types
ETFsStocks
StocksETFsClosed-End Funds
Experience
BeginnerIntermediateAdvanced
BeginnerIntermediateAdvanced
Target audience
Not specified
Retail TradersPro RetailInstitutional InvestorsAnalystsQuants/DevelopersFinancial AdvisorsStudents/Researchers
Regions
North AmericaEuropeAPACLatAmMiddle EastAfrica
North AmericaEurope
Coverage details
Exchanges: ARCX, XNAS, and BATSIdentifiers: Ticker
Countries: US and CAIdentifiers: Ticker
Data
Data freshness
End 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
ExcelPDF
CSVJSON
Plans & trust
Capability signals
Universe builderFactors: Value, Quality, Momentum, Growth, LowVol, and SizeFactor exposureRebalancingPortfolio factor exposure
Custom formulasRanking backtestsUniverse builderBroker syncRebalancingCorrelation
Vendor & support
ETF Action, Inc.Country: USFounded 2018Support: Email
Portfolio123Support: Forum
Curation ratings
Methodology 3/5Reliability 4/5UX 4/5
Not specified

Green tags are exclusive to that tool in this comparison.

Pricing

Plans, billing, free trials, and monthly prices.
Show
Plan-by-plan pricing comparison of ETF Action and Portfolio123
Tier
ETF Action logo
ETF Action
Portfolio123 logo
Portfolio123Cheaper start
Free plan
Free
Free“Manage (Free)”
Entry paid plan
$29/mo“DIY”
$300/yr≈ $25/mo“Screener (Annual)”backtest history years: 5 · resource units: 400 · +1 more
Tier 2
$99/mo“Advisor Pro”
$35/mo“Screener (Monthly)”backtest history years: 5 · resource units: 400 · +1 more
Tier 3
$199/mo“Model Builder”
$1000/yr≈ $83.33/mo“Backtest (Annual)”backtest history years: 10 · resource units: 1,000 · +1 more
Tier 4—
$116/mo“Backtest (Monthly)”backtest history years: 10 · resource units: 1,000 · +1 more
Tier 5—
$1500/yr≈ $125/mo“Portfolio (Annual)”backtest history years: 15 · resource units: 5,000 · +1 more
Tier 6—
$174/mo“Portfolio (Monthly)”backtest history years: 15 · resource units: 5,000 · +1 more
Tier 7—
$2400/yr≈ $200/mo“Ultimate (Annual)”backtest history years: 20 · resource units: 10,000 · +1 more
Top plan—
$278/mo“Ultimate (Monthly)”backtest history years: 20 · resource units: 10,000 · +1 more
Custom / enterprise
Contact sales“Enterprise”
Contact sales“Professional / API & Data Licenses”

Questions we keep getting

What's the difference between ETF Action and Portfolio123?

ETF Action leans toward ETF analysis, ETF factors, and ETF overlap, 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 ETF Action and Portfolio123 cost?

Good news: both ETF Action and Portfolio123 have free plans, so you can run them side by side and only pay if you hit a wall.

Does ETF Action or Portfolio123 have an API?

Portfolio123 has an API for programmatic access and custom integrations. ETF Action doesn't, so you're working through its interface.

Should I choose ETF Action or Portfolio123?

It depends on what you're after. Pick ETF Action if ETF analysis and ETF factors matter to you; go with Portfolio123 if you'd rather have screeners and quant. And if you only need the basics both share, let price decide.

What asset classes do ETF Action and Portfolio123 cover?

Both cover ETFs and stocks. Portfolio123 adds closed-end funds on top.

Does ETF Action or Portfolio123 have real-time data?

Portfolio123 offers real-time data, which matters if you trade actively. ETF Action 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.

Can I export data from ETF Action and Portfolio123?

Yes, both export to spreadsheets (ETF Action: Excel; Portfolio123: CSV), which is handy if you like running your own numbers.

Can ETF Action or Portfolio123 connect to my broker?

Portfolio123 syncs with brokers automatically. With ETF Action, you're entering holdings by hand or importing files.

Which has a better stock screener: ETF Action or Portfolio123?

Both ETF Action 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 ETF Action or Portfolio123?

Yes, both do portfolio tracking: holdings, performance, and allocation in one place.

Feedback

Spot stale pricing, missing features, or a comparison that feels off? Send feedback on the verdict, table, alternatives, or recommendation.

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.