InsideArbitrage adds News, Alerts, Calendar, Acquisitions, Spin-offs, Buybacks & Authorizations, Dividends, Splits, Insider Data, Institutional Data, 13F, 13D/13G, Screeners, Data Visualizations, Portfolio, Blogs, Newsletters, Videos, Playbooks & Case Studies, and PDF Annotation coverage that This Is Not SEDAR skips.
VOL. XCIV, NO. 247
★ FINANCIAL TOOLS & SERVICES DIRECTORY ★
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Friday, October 31, 2025
Tool Comparison
InsideArbitrage vs This Is Not SEDAR comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
Quick takeaways
This Is Not SEDAR includes Improved Filings 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.
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This Is Not SEDAR
thisisnotsedar.com
Indie, beta-stage UI for browsing Canadian SEDAR+ filings. Offers a simple ‘Latest Filings’ page and hosts mirrored PDFs; banner indicates it auto‑downloads files and reads headlines for saved ‘portfolio companies’ during a transition to a new site. No published API, pricing, or enterprise/compliance details.
Platforms
Web
Pricing
Free
Quick highlights
- ‘Latest Filings’ browser focused on Canadian issuers.
- Mirrored PDF hosting for filings (served from docs.thisisnotsedar.com).
- Portfolio/watchlist concept: continues downloading files and reading headlines for existing tracked companies while the site migrates.
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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.
This Is Not SEDAR
Distinct strengths include:
- ‘Latest Filings’ browser focused on Canadian issuers.
- Mirrored PDF hosting for filings (served from docs.thisisnotsedar.com).
- Portfolio/watchlist concept: continues downloading files and reading headlines for existing tracked companies while the site migrates.
Feature-by-feature breakdown
| Attribute | InsideArbitrage | This Is Not SEDAR |
|---|---|---|
Categories Which research workflows each platform targets | Shared: Regulatory Filings Monitoring, Watchlist Unique: News, Alerts, Calendar, Acquisitions, Spin-offs, Buybacks & Authorizations, Dividends, Splits, Insider Data, Institutional Data, 13F, 13D/13G, Screeners, Data Visualizations, Portfolio, Blogs, Newsletters, Videos, Playbooks & Case Studies, PDF Annotation | Shared: Regulatory Filings Monitoring, Watchlist Unique: Improved Filings |
Asset types Supported asset classes and universes | Stocks, ETFs | Stocks, ETFs, Mutual Funds, Funds |
Experience levels Who each product is built for | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Platforms Where you can access the product | Web | Web |
Pricing High-level pricing models | Free, Subscription | Free |
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 This Is Not SEDAR both support?
Both platforms cover Regulatory Filings Monitoring, and Watchlist workflows, so you can research those use cases in either tool before digging into the feature differences below.
Do InsideArbitrage and This Is Not SEDAR require subscriptions?
Both InsideArbitrage and This Is Not SEDAR keep freemium access with optional paid upgrades, so you can trial each platform before committing.
How can you access InsideArbitrage and This Is Not SEDAR?
Both InsideArbitrage and This Is Not SEDAR 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 This Is Not SEDAR stands out for ‘Latest Filings’ browser focused on Canadian issuers., Mirrored PDF hosting for filings (served from docs.thisisnotsedar.com)., and Portfolio/watchlist concept: continues downloading files and reading headlines for existing tracked companies while the site migrates..
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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.