VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 5, 2025

Head-to-head

ETF Action vs Portfolio123 comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

ETF Action adds ETF Overview, ETF Performance, ETF Holdings, ETF Fundamentals, ETF Valuation, ETF Factors, ETF Overlap, Watchlist, 13F, Alerts, Blogs, and Videos coverage that Portfolio123 skips.

Portfolio123 includes Quant, Correlation, Calendar, APIs & SDKs, and Broker Connectors categories that ETF Action omits.

ETF Action highlights: Global ETF ‘Channels’ taxonomy with category reports and dashboards (Size & Style US/Global, Region & Country, Sector & Industry, Thematic, Fixed Income, Non‑Traditional, Commodities, Crypto)., Look‑through analytics on fund holdings for factor/style, sector/industry, country, concentration; portfolio overlap analysis across funds or entire models., and Flows & trading dashboards (volumes/ADV); flows noted as T+1 timing in daily updates..

Portfolio123 is known for: Build custom multi-factor ranking systems and rank stocks by universe, sector, or industry., Spreadsheet-style screening with formulas (including Piotroski F-Score) across current and historical data., and Backtesting with realistic assumptions for slippage, commissions, buy/sell rules, position sizing, and hedging..

ETF Action logo

ETF Action

etfaction.com

Independent ETF analytics platform for advisors and asset managers. Offers global ETF classification, look‑through holdings analytics, overlap analysis, flows/volumes with T+1 flow timing, live quotes (FMV) via Polygon.io, model portfolio tools, 13F screening (Advisor Pro), and enterprise options including API access. DIY/Advisor Pro plans emphasize self‑service research and Excel/CSV downloads; Enterprise adds collaboration, custom dashboards, and API. A separate Model Builder plan enables model uploads and ‘Bridge’ trading integration. API details are not publicly documented—confirm endpoints and auth with vendor.

Platforms

Web
API

Pricing

Free
Subscription

Quick highlights

  • Global ETF ‘Channels’ taxonomy with category reports and dashboards (Size & Style US/Global, Region & Country, Sector & Industry, Thematic, Fixed Income, Non‑Traditional, Commodities, Crypto).
  • Look‑through analytics on fund holdings for factor/style, sector/industry, country, concentration; portfolio overlap analysis across funds or entire models.
  • Flows & trading dashboards (volumes/ADV); flows noted as T+1 timing in daily updates.
  • Live pricing on platform pages via Polygon.io FMV quotes (real‑time-ish indicative).
  • Screeners for ETFs; watchlists; data exports to Excel/CSV (DIY 50 rows, Advisor Pro 500 rows).

Community votes (overall)

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Portfolio123 logo

Portfolio123

portfolio123.com

Editor’s pick Hands-on review

Quant research and live-deployment platform with point-in-time fundamentals and estimates. Users can screen, backtest, and simulate strategies, then deploy them live with broker integrations. Supports API access and a no-code desktop DataMiner. FactSet or S&P Compustat licenses are required for full historical fundamentals.

Platforms

Web
Desktop
API

Pricing

Free
Subscription

Quick highlights

  • Build custom multi-factor ranking systems and rank stocks by universe, sector, or industry.
  • Spreadsheet-style screening with formulas (including Piotroski F-Score) across current and historical data.
  • Backtesting with realistic assumptions for slippage, commissions, buy/sell rules, position sizing, and hedging.
  • ‘Books’ feature to combine multiple strategies and view correlations between them.
  • Point-in-time fundamentals, estimates, and corporate actions with dividends handled on ex/pay dates (no survivorship bias or look-ahead).

Community votes (overall)

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Overlap

Shared focus areas

5 overlaps

Mutual strengths include Screeners, Data Visualizations, and Portfolio plus 2 more areas.

Where they differ

ETF Action

Distinct strengths include:

  • Global ETF ‘Channels’ taxonomy with category reports and dashboards (Size & Style US/Global, Region & Country, Sector & Industry, Thematic, Fixed Income, Non‑Traditional, Commodities, Crypto).
  • Look‑through analytics on fund holdings for factor/style, sector/industry, country, concentration; portfolio overlap analysis across funds or entire models.
  • Flows & trading dashboards (volumes/ADV); flows noted as T+1 timing in daily updates.
  • Live pricing on platform pages via Polygon.io FMV quotes (real‑time-ish indicative).

Portfolio123

Distinct strengths include:

  • Build custom multi-factor ranking systems and rank stocks by universe, sector, or industry.
  • Spreadsheet-style screening with formulas (including Piotroski F-Score) across current and historical data.
  • Backtesting with realistic assumptions for slippage, commissions, buy/sell rules, position sizing, and hedging.
  • ‘Books’ feature to combine multiple strategies and view correlations between them.

Feature-by-feature breakdown

AttributeETF ActionPortfolio123
Categories

Which research workflows each platform targets

Shared: Screeners, Data Visualizations, Portfolio, Backtesting, Data APIs

Unique: ETF Overview, ETF Performance, ETF Holdings, ETF Fundamentals, ETF Valuation, ETF Factors, ETF Overlap, Watchlist, 13F, Alerts, Blogs, Videos

Shared: Screeners, Data Visualizations, Portfolio, Backtesting, Data APIs

Unique: Quant, Correlation, Calendar, APIs & SDKs, Broker Connectors

Asset types

Supported asset classes and universes

ETFs, Stocks

Stocks, ETFs

Experience levels

Who each product is built for

Beginner, Intermediate, Advanced

Beginner, Intermediate, Advanced

Platforms

Where you can access the product

Web, API

Web, Desktop, API

Pricing

High-level pricing models

Free, Subscription

Free, Subscription

Key features

Core capabilities called out by each vendor

Unique

  • Global ETF ‘Channels’ taxonomy with category reports and dashboards (Size & Style US/Global, Region & Country, Sector & Industry, Thematic, Fixed Income, Non‑Traditional, Commodities, Crypto).
  • Look‑through analytics on fund holdings for factor/style, sector/industry, country, concentration; portfolio overlap analysis across funds or entire models.
  • Flows & trading dashboards (volumes/ADV); flows noted as T+1 timing in daily updates.
  • Live pricing on platform pages via Polygon.io FMV quotes (real‑time-ish indicative).
  • Screeners for ETFs; watchlists; data exports to Excel/CSV (DIY 50 rows, Advisor Pro 500 rows).
  • Model portfolio creation & back‑testing; private model marketplaces for advisors/strategists.

Unique

  • Build custom multi-factor ranking systems and rank stocks by universe, sector, or industry.
  • Spreadsheet-style screening with formulas (including Piotroski F-Score) across current and historical data.
  • Backtesting with realistic assumptions for slippage, commissions, buy/sell rules, position sizing, and hedging.
  • ‘Books’ feature to combine multiple strategies and view correlations between them.
  • Point-in-time fundamentals, estimates, and corporate actions with dividends handled on ex/pay dates (no survivorship bias or look-ahead).
  • Coverage of 15,000+ equities in the U.S., Canada, and Europe, including delisted stocks and spinoffs.
Tested

Verified by hands-on testing inside Find My Moat

Not yet

Yes

Editor pick

Featured inside curated shortlists

Standard listing

Highlighted

Frequently Asked Questions

Which workflows do ETF Action and Portfolio123 both support?

Both platforms cover Screeners, Data Visualizations, Portfolio, Backtesting, and Data APIs workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do ETF Action and Portfolio123 require subscriptions?

Both ETF Action and Portfolio123 keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access ETF Action and Portfolio123?

Both ETF Action and Portfolio123 prioritize web or desktop access. Investors wanting a mobile-first workflow may need to rely on responsive web views.

What unique strengths set the two platforms apart?

ETF Action differentiates itself with Global ETF ‘Channels’ taxonomy with category reports and dashboards (Size & Style US/Global, Region & Country, Sector & Industry, Thematic, Fixed Income, Non‑Traditional, Commodities, Crypto)., Look‑through analytics on fund holdings for factor/style, sector/industry, country, concentration; portfolio overlap analysis across funds or entire models., and Flows & trading dashboards (volumes/ADV); flows noted as T+1 timing in daily updates., whereas Portfolio123 stands out for Build custom multi-factor ranking systems and rank stocks by universe, sector, or industry., Spreadsheet-style screening with formulas (including Piotroski F-Score) across current and historical data., and Backtesting with realistic assumptions for slippage, commissions, buy/sell rules, position sizing, and hedging..

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.