InsideArbitrage adds News, Alerts, Calendar, Acquisitions, Spin-offs, Buybacks & Authorizations, Dividends, Splits, Insider Data, 13D/13G, Regulatory Filings Monitoring, Screeners, Data Visualizations, Portfolio, Watchlist, Blogs, Newsletters, Videos, Playbooks & Case Studies, and PDF Annotation coverage that WhaleWisdom skips.
VOL. XCIV, NO. 247
★ FINANCIAL TOOLS & SERVICES DIRECTORY ★
PRICE: 5 CENTS
Tuesday, November 18, 2025
Tool Comparison
InsideArbitrage vs WhaleWisdom comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
Quick takeaways
WhaleWisdom includes Investor Holdings, and Stock Ideas categories that InsideArbitrage omits.
In depth comparison
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.
Categories
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.
Community votes (overall)
0% upvotes 0% downvotes
You haven't voted yet
WhaleWisdom
whalewisdom.com
Aggregates 13F filings and insider transactions so investors can follow institutional positioning, build watchlists, and backtest crowding strategies.
Platforms
WebAPI
Pricing
FreeSubscription
Quick highlights
- Rank hedge fund managers by performance, risk-adjusted returns, and recent filings.
- Pull 13F, 13D/G, insider trades, and sector exposures into custom portfolios and alerts.
- API and bulk downloads available for quantitative workflows and screening.
- Tools for cloning strategies, monitoring crowding, and tracking portfolio overlaps over time.
Community votes (overall)
0% upvotes 0% downvotes
You haven't voted yet
Where they differ
InsideArbitrage
Distinct strengths include:
- 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.
WhaleWisdom
Distinct strengths include:
- Rank hedge fund managers by performance, risk-adjusted returns, and recent filings.
- Pull 13F, 13D/G, insider trades, and sector exposures into custom portfolios and alerts.
- API and bulk downloads available for quantitative workflows and screening.
- Tools for cloning strategies, monitoring crowding, and tracking portfolio overlaps over time.
Feature-by-feature breakdown
| Attribute | InsideArbitrage | WhaleWisdom |
|---|---|---|
Categories Which research workflows each platform targets | Shared: Institutional Data, 13F Unique: News, Alerts, Calendar, Acquisitions, Spin-offs, Buybacks & Authorizations, Dividends, Splits, Insider Data, 13D/13G, Regulatory Filings Monitoring, Screeners, Data Visualizations, Portfolio, Watchlist, Blogs, Newsletters, Videos, Playbooks & Case Studies, PDF Annotation | Shared: Institutional Data, 13F Unique: Investor Holdings, Stock Ideas |
Asset types Supported asset classes and universes | Stocks, ETFs | Stocks, ETFs |
Experience levels Who each product is built for | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Platforms Where you can access the product | Web | Web, API |
Pricing High-level pricing models | Free, Subscription | Free, Subscription |
Key features Core capabilities called out by each vendor | Unique
| Unique
|
Tested Verified by hands-on testing inside Find My Moat | Not yet | Not yet |
Editor pick Featured inside curated shortlists | Standard listing | Standard listing |
Frequently Asked Questions
Which workflows do InsideArbitrage and WhaleWisdom both support?
Both platforms cover Institutional Data, and 13F workflows, so you can research those use cases in either tool before digging into the feature differences below.
Do InsideArbitrage and WhaleWisdom require subscriptions?
Both InsideArbitrage and WhaleWisdom keep freemium access with optional paid upgrades, so you can trial each platform before committing.
How can you access InsideArbitrage and WhaleWisdom?
Both InsideArbitrage and WhaleWisdom 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?
InsideArbitrage differentiates itself with 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)., whereas WhaleWisdom stands out for Rank hedge fund managers by performance, risk-adjusted returns, and recent filings., Pull 13F, 13D/G, insider trades, and sector exposures into custom portfolios and alerts., and API and bulk downloads available for quantitative workflows and screening..
Keep exploring
Keep exploring
Stay on top of related tools
Browse the categories and profiles that overlap most with this comparison to round out your shortlist.
Related categories
Follow the same themes these tools compete in.
Recommended tools
These profiles share overlapping coverage with both sides of this matchup.
- TrendlyneHands-on review
Overlap: Screeners, Data Visualizations, and Portfolio.
ScreenersData VisualizationsPortfolio - Stock AnalysisEditor's pickHands-on review
Overlap: Stock Ideas, Screeners, and Data Visualizations.
Stock IdeasScreenersData Visualizations - Fiscal.aiEditor's pickHands-on review
Overlap: Screeners, Data Visualizations, and Portfolio.
ScreenersData VisualizationsPortfolio - StockopediaEditor's pickHands-on review
Overlap: Screeners, Stock Ideas, and Data Visualizations.
ScreenersStock IdeasData Visualizations - TradingViewEditor's pickHands-on review
Overlap: Screeners, Stock Ideas, and Data Visualizations.
ScreenersStock IdeasData Visualizations - Stock UnlockHands-on review
Overlap: Screeners, Data Visualizations, and Portfolio.
ScreenersData VisualizationsPortfolio
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.