VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, December 7, 2025

Tool Comparison

GuruFocus vs InsideArbitrage comparison

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

Quick takeaways

GuruFocus adds Stock Ideas, Stock Comparison, Investor Holdings, US Government Trades, Backtesting, Data APIs, IPO, Delisted, GDP, Interest Rates, Inflation Rates, Unemployment Rates, Commitment of Traders (COT), Yield Curves, Financials, Scores, Valuation Models, Short Interest, ETF Overview, ETF Holdings, Analyst Forecasts, Analyst Price Targets, Analyst Recommendations, Transcripts, AI, AI Chat, Education, Forums, and Stock Handbook coverage that InsideArbitrage skips.

InsideArbitrage includes Buybacks & Authorizations, Splits, Regulatory Filings Monitoring, Watchlist, Playbooks & Case Studies, and PDF Annotation categories that GuruFocus omits.

GuruFocus ships a mobile app. InsideArbitrage is web/desktop only.

In depth comparison

GuruFocus

gurufocus.com

Editor’s pick Hands-on review

Global value‑investing research platform with 100k+ stocks in ~100 markets, guru & insider holdings, macro indicators and AI tools. Basic access is free with limited scanner/guru data, while Premium / PremiumPlus / Professional tiers unlock 30‑year financials, advanced All‑in‑One Screener, GuruAI, backtesting, Excel/Sheets add‑ins and increasing API query limits; a separate GuruAPI data-licensing product provides institutional datasets and pay‑per‑call or subscription access.

Platforms

WebMobileDesktopAPI

Pricing

FreeSubscription

Quick highlights

Global value-investing research platform covering ~100,000 stocks in ~100 markets plus 8,000+ institutional investors and 15,000+ mutual funds holdings, designed to provide historical financial and valuation data for long-term investors.
All-in-One Screener offers 500+ fundamental, valuation, profitability, growth, dividend, guru and insider filters, supports custom filters/formulas and screening by regions, countries, exchanges and user portfolios.
Stock pages combine up to 30-year financial statements, valuation ratios, proprietary GF Score (quality, value, growth, momentum and GF value), dividend data, ownership, operating/segment metrics, filings, transcripts, PDF reports and downloadable charts/tables.
Guru and institutional tools track portfolios and trades of thousands of investors, including real-time guru picks, 13F and 13D/13G data for all institutional investors (PremiumPlus+), mutual fund holdings, sector/geographic trends, ETF and options holdings.
Insider and politician trading trackers provide real-time insider buys/sells, clusters and combined guru+insider signals, plus a dedicated U.S. politician trading tracker with real-time picks and full politician lists.

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InsideArbitrage

insidearbitrage.com

Event‑driven research platform by Asif Suria focused on merger arbitrage, insider transactions, spinoffs, buybacks, activists, and related special situations. Premium includes tools like the Merger Arbitrage Tool, CVR database, buyback & spinoff trackers, premium screens (IA Score, cluster buys, ‘double dipper’), ‘Deals‑in‑the‑Works’ and deal calendars. IA Professional adds pro‑only features (e.g., CVR outcomes, activist tracker, reverse‑splits tracker, Insider Performance Score) and multi‑seat licensing.

Platforms

Web

Pricing

FreeSubscription

Quick highlights

Merger Arbitrage Tool with announced‑deal lists, spread tracking, calendars and deal updates; ‘Deals in the Works’ and deal post‑mortems.
Insider data hub with ‘Insider Weekends’, cluster buys, buys near highs, flip‑floppers, top‑performing insiders and sector heat‑map.
Buyback suite: daily buyback announcements, searchable buyback history, ‘Buyback Wednesdays’, and ‘Double Dipper’ (insiders + buybacks).
Spinoff suite: upcoming/completed spinoffs and ‘Spinsider’ screen; CVR deals database with outcomes.
Gurus/Institutional holdings pages aggregating 13F/13D/13G and Form 4 into manager dashboards.

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Where they differ

GuruFocus

Distinct strengths include:

Stock Ideas Stock Comparison Investor Holdings US Government Trades Backtesting Data APIs IPO Delisted

Global value-investing research platform covering ~100,000 stocks in ~100 markets plus 8,000+ institutional investors and 15,000+ mutual funds holdings, designed to provide historical financial and valuation data for long-term investors.
All-in-One Screener offers 500+ fundamental, valuation, profitability, growth, dividend, guru and insider filters, supports custom filters/formulas and screening by regions, countries, exchanges and user portfolios.
Stock pages combine up to 30-year financial statements, valuation ratios, proprietary GF Score (quality, value, growth, momentum and GF value), dividend data, ownership, operating/segment metrics, filings, transcripts, PDF reports and downloadable charts/tables.
Guru and institutional tools track portfolios and trades of thousands of investors, including real-time guru picks, 13F and 13D/13G data for all institutional investors (PremiumPlus+), mutual fund holdings, sector/geographic trends, ETF and options holdings.

InsideArbitrage

Distinct strengths include:

Buybacks & Authorizations Splits Regulatory Filings Monitoring Watchlist Playbooks & Case Studies PDF Annotation

Merger Arbitrage Tool with announced‑deal lists, spread tracking, calendars and deal updates; ‘Deals in the Works’ and deal post‑mortems.
Insider data hub with ‘Insider Weekends’, cluster buys, buys near highs, flip‑floppers, top‑performing insiders and sector heat‑map.
Buyback suite: daily buyback announcements, searchable buyback history, ‘Buyback Wednesdays’, and ‘Double Dipper’ (insiders + buybacks).
Spinoff suite: upcoming/completed spinoffs and ‘Spinsider’ screen; CVR deals database with outcomes.

Feature-by-feature breakdown

Attribute	GuruFocus	InsideArbitrage
Categories Which research workflows each platform targets	Shared: Screeners, Data Visualizations, Portfolio, News, Alerts, Calendar, Spin-offs, Acquisitions, Dividends, Insider Data, Institutional Data, 13F, 13D/13G, Videos, Blogs, Newsletters Unique: Stock Ideas, Stock Comparison, Investor Holdings, US Government Trades, Backtesting, Data APIs, IPO, Delisted, GDP, Interest Rates, Inflation Rates, Unemployment Rates, Commitment of Traders (COT), Yield Curves, Financials, Scores, Valuation Models, Short Interest, ETF Overview, ETF Holdings, Analyst Forecasts, Analyst Price Targets, Analyst Recommendations, Transcripts, AI, AI Chat, Education, Forums, Stock Handbook	Shared: Screeners, Data Visualizations, Portfolio, News, Alerts, Calendar, Spin-offs, Acquisitions, Dividends, Insider Data, Institutional Data, 13F, 13D/13G, Videos, Blogs, Newsletters Unique: Buybacks & Authorizations, Splits, Regulatory Filings Monitoring, Watchlist, Playbooks & Case Studies, PDF Annotation
Asset types Supported asset classes and universes	Stocks, ETFs, Mutual Funds, Options, Funds	Stocks, ETFs
Experience levels Who each product is built for	Beginner, Intermediate, Advanced	Beginner, Intermediate, Advanced
Platforms Where you can access the product	Web, Mobile, Desktop, API	Web
Pricing High-level pricing models	Free, Subscription	Free, Subscription
Key features Core capabilities called out by each vendor	Unique Global value-investing research platform covering ~100,000 stocks in ~100 markets plus 8,000+ institutional investors and 15,000+ mutual funds holdings, designed to provide historical financial and valuation data for long-term investors. All-in-One Screener offers 500+ fundamental, valuation, profitability, growth, dividend, guru and insider filters, supports custom filters/formulas and screening by regions, countries, exchanges and user portfolios. Stock pages combine up to 30-year financial statements, valuation ratios, proprietary GF Score (quality, value, growth, momentum and GF value), dividend data, ownership, operating/segment metrics, filings, transcripts, PDF reports and downloadable charts/tables. Guru and institutional tools track portfolios and trades of thousands of investors, including real-time guru picks, 13F and 13D/13G data for all institutional investors (PremiumPlus+), mutual fund holdings, sector/geographic trends, ETF and options holdings. Insider and politician trading trackers provide real-time insider buys/sells, clusters and combined guru+insider signals, plus a dedicated U.S. politician trading tracker with real-time picks and full politician lists. Market & macro dashboards cover U.S. and global valuation (Buffett Indicator, Shiller P/E, GF Value for major indices), Treasury yield curve, inflation, debt-to-GDP, GDP, unemployment, VIX and broader economic indicators across multiple regions.	Unique Merger Arbitrage Tool with announced‑deal lists, spread tracking, calendars and deal updates; ‘Deals in the Works’ and deal post‑mortems. Insider data hub with ‘Insider Weekends’, cluster buys, buys near highs, flip‑floppers, top‑performing insiders and sector heat‑map. Buyback suite: daily buyback announcements, searchable buyback history, ‘Buyback Wednesdays’, and ‘Double Dipper’ (insiders + buybacks). Spinoff suite: upcoming/completed spinoffs and ‘Spinsider’ screen; CVR deals database with outcomes. Gurus/Institutional holdings pages aggregating 13F/13D/13G and Form 4 into manager dashboards. Event‑driven monitor & M&A news feed; earnings calendar; tender‑offers tracker; activist‑campaign tracker; C‑suite transitions tool.
Tested Verified by hands-on testing inside Find My Moat	Yes	Not yet
Editor pick Featured inside curated shortlists	Highlighted	Standard listing

Frequently Asked Questions

Which workflows do GuruFocus and InsideArbitrage both support?

Both platforms cover Screeners, Data Visualizations, Portfolio, News, Alerts, Calendar, Spin-offs, Acquisitions, Dividends, Insider Data, Institutional Data, 13F, 13D/13G, Videos, Blogs, and Newsletters workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do GuruFocus and InsideArbitrage require subscriptions?

Both GuruFocus and InsideArbitrage keep freemium access with optional paid upgrades, so you can trial each platform before committing.

Which tool has mobile access?

GuruFocus ships a dedicated mobile experience, while InsideArbitrage focuses on web or desktop access.

What unique strengths set the two platforms apart?

GuruFocus differentiates itself with Global value-investing research platform covering ~100,000 stocks in ~100 markets plus 8,000+ institutional investors and 15,000+ mutual funds holdings, designed to provide historical financial and valuation data for long-term investors., All-in-One Screener offers 500+ fundamental, valuation, profitability, growth, dividend, guru and insider filters, supports custom filters/formulas and screening by regions, countries, exchanges and user portfolios., and Stock pages combine up to 30-year financial statements, valuation ratios, proprietary GF Score (quality, value, growth, momentum and GF value), dividend data, ownership, operating/segment metrics, filings, transcripts, PDF reports and downloadable charts/tables., whereas InsideArbitrage stands out for Merger Arbitrage Tool with announced‑deal lists, spread tracking, calendars and deal updates; ‘Deals in the Works’ and deal post‑mortems., Insider data hub with ‘Insider Weekends’, cluster buys, buys near highs, flip‑floppers, top‑performing insiders and sector heat‑map., and Buyback suite: daily buyback announcements, searchable buyback history, ‘Buyback Wednesdays’, and ‘Double Dipper’ (insiders + buybacks)..

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