InsideArbitrage adds News, Alerts, Calendar, Acquisitions, Spin-offs, Buybacks & Authorizations, Dividends, Splits, Insider Data, Institutional Data, 13F, 13D/13G, Screeners, Data Visualizations, Portfolio, Watchlist, Blogs, Newsletters, Videos, Playbooks & Case Studies, and PDF Annotation coverage that PCAOB AuditorSearch skips.
VOL. XCIV, NO. 247
★ FINANCIAL TOOLS & SERVICES DIRECTORY ★
PRICE: 5 CENTS
Wednesday, November 19, 2025
Tool Comparison
InsideArbitrage vs PCAOB AuditorSearch comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
Quick takeaways
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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PCAOB AuditorSearch
pcaobus.org
Free public database built from Form AP filings. Users can search audit engagements by company, firm, or partner, or download the full dataset as a CSV file updated daily. Bulk downloads are timestamped in Eastern Time and do not include the ticker field.
Categories
Platforms
Web
Pricing
Free
Quick highlights
- Searchable by engagement partner, audit firm, or public company, with support for company name, CIK, ticker, and firm identifiers.
- Displays engagement partner details, audit firm name and location, and the extent of participation of other firms.
- Bulk dataset download in CSV format, updated daily. The file includes all Form AP data fields documented in the dictionary, with timestamps in Eastern Time.
- Form AP filings are required for each audit of a public company, forming the core of the database.
- Advanced search tools and a contact form are available for deeper queries and user support.
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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.
Feature-by-feature breakdown
| Attribute | InsideArbitrage | PCAOB AuditorSearch |
|---|---|---|
Categories Which research workflows each platform targets | Shared: Regulatory Filings Monitoring Unique: News, Alerts, Calendar, Acquisitions, Spin-offs, Buybacks & Authorizations, Dividends, Splits, Insider Data, Institutional Data, 13F, 13D/13G, Screeners, Data Visualizations, Portfolio, Watchlist, Blogs, Newsletters, Videos, Playbooks & Case Studies, PDF Annotation | Shared: Regulatory Filings Monitoring |
Asset types Supported asset classes and universes | Stocks, ETFs | Other |
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 PCAOB AuditorSearch both support?
Both platforms cover Regulatory Filings Monitoring workflows, so you can research those use cases in either tool before digging into the feature differences below.
Do InsideArbitrage and PCAOB AuditorSearch require subscriptions?
Both InsideArbitrage and PCAOB AuditorSearch keep freemium access with optional paid upgrades, so you can trial each platform before committing.
How can you access InsideArbitrage and PCAOB AuditorSearch?
Both InsideArbitrage and PCAOB AuditorSearch 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 PCAOB AuditorSearch stands out for Searchable by engagement partner, audit firm, or public company, with support for company name, CIK, ticker, and firm identifiers., Displays engagement partner details, audit firm name and location, and the extent of participation of other firms., and Bulk dataset download in CSV format, updated daily. The file includes all Form AP data fields documented in the dictionary, with timestamps in Eastern Time..
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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.