VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Tuesday, November 11, 2025

Tool Comparison

ETF Insider vs Portfolio123 comparison

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

Quick takeaways

ETF Insider adds ETF Overview, ETF Performance, ETF Holdings, ETF Factors, ETF Overlap, ETF Screeners, and Blogs coverage that Portfolio123 skips.

Portfolio123 includes Screeners, Quant, Backtesting, Calendar, Data APIs, and Broker Connectors categories that ETF Insider omits.

In depth comparison

ETF Insider

etfinsider.co

Editor’s pick Hands-on review

ETF & mutual fund overlap/correlation and portfolio visualization tool featuring Sankey look‑through, correlation matrices, and efficient‑frontier (Sharpe) views. Free tier allows up to 4 saved portfolios and limited full‑holdings visibility; Pro ($14/mo) unlocks unlimited portfolios, full holdings depth, and Excel export. Enterprise adds a financial data API, custom reports/visualizations, and white‑label options. Coverage explicitly includes **US‑listed ETFs & mutual funds**; equities coverage is described as **international** on pricing, but the FAQ states non‑US assets not listed in the US are not supported (current constraint). Holdings are sourced primarily from SEC EDGAR and refreshed on a quarterly cadence based on filings; data may be delayed per exchanges/providers.

Platforms

WebAPI

Pricing

FreeSubscription

Quick highlights

Holdings look‑through & overlap: visualize shared constituents across funds to surface concentration risk and duplication.
Correlation matrix across portfolio assets; efficient‑frontier visualization with Sharpe‑ratio context.
Sankey diagrams, drill‑downs by asset class, sector, geography and exchange; customizable visualizations.
ETF screener (filters by asset class, geography, theme, provider, sector) and performance & info panels.
Portfolio tooling: save portfolios (4 on Free; unlimited on Pro), CSV upload (Symbol, Quantity).

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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

WebDesktopAPI

Pricing

FreeSubscription

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).

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Where they differ

ETF Insider

Distinct strengths include:

ETF Overview ETF Performance ETF Holdings ETF Factors ETF Overlap ETF Screeners Blogs

Holdings look‑through & overlap: visualize shared constituents across funds to surface concentration risk and duplication.
Correlation matrix across portfolio assets; efficient‑frontier visualization with Sharpe‑ratio context.
Sankey diagrams, drill‑downs by asset class, sector, geography and exchange; customizable visualizations.
ETF screener (filters by asset class, geography, theme, provider, sector) and performance & info panels.

Portfolio123

Distinct strengths include:

Screeners Quant Backtesting Calendar Data APIs Broker Connectors

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

Attribute	ETF Insider	Portfolio123
Categories Which research workflows each platform targets	Shared: Data Visualizations, Portfolio, Correlation, APIs & SDKs Unique: ETF Overview, ETF Performance, ETF Holdings, ETF Factors, ETF Overlap, ETF Screeners, Blogs	Shared: Data Visualizations, Portfolio, Correlation, APIs & SDKs Unique: Screeners, Quant, Backtesting, Calendar, Data APIs, Broker Connectors
Asset types Supported asset classes and universes	ETFs, Mutual Funds, 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 Holdings look‑through & overlap: visualize shared constituents across funds to surface concentration risk and duplication. Correlation matrix across portfolio assets; efficient‑frontier visualization with Sharpe‑ratio context. Sankey diagrams, drill‑downs by asset class, sector, geography and exchange; customizable visualizations. ETF screener (filters by asset class, geography, theme, provider, sector) and performance & info panels. Portfolio tooling: save portfolios (4 on Free; unlimited on Pro), CSV upload (Symbol, Quantity). Exports (Pro): Export to Excel; save charts as PDF or image; shareable portfolio links.	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	Yes	Yes
Editor pick Featured inside curated shortlists	Highlighted	Highlighted

Frequently Asked Questions

Which workflows do ETF Insider and Portfolio123 both support?

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

Do ETF Insider and Portfolio123 require subscriptions?

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

How can you access ETF Insider and Portfolio123?

Both ETF Insider 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 Insider differentiates itself with Holdings look‑through & overlap: visualize shared constituents across funds to surface concentration risk and duplication., Correlation matrix across portfolio assets; efficient‑frontier visualization with Sharpe‑ratio context., and Sankey diagrams, drill‑downs by asset class, sector, geography and exchange; customizable visualizations., 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..

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