VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Thursday, December 4, 2025

Home My Collections

Tool Comparison

IBorrowDesk vs InsideArbitrage comparison

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

Quick takeaways

IBorrowDesk adds Short Interest coverage that InsideArbitrage skips.

InsideArbitrage includes News, Calendar, Acquisitions, Spin-offs, Buybacks & Authorizations, Dividends, Splits, Insider Data, Institutional Data, 13F, 13D/13G, Regulatory Filings Monitoring, Screeners, Data Visualizations, Portfolio, Blogs, Newsletters, Videos, Playbooks & Case Studies, and PDF Annotation categories that IBorrowDesk omits.

In depth comparison

IBorrowDesk

iborrowdesk.com

Tracks stock-loan availability and borrow fee data as reported by Interactive Brokers (IBKR). Updates roughly every 15 minutes during North American trading hours and hourly elsewhere on weekdays. The data reflects IBKR only and not the wider market. The site is unaffiliated with IBKR; displayed quotes are provided by IEX. A paid Patron tier adds longer history, CSV exports, and more tracking capacity.

Platforms

Web

Pricing

FreeSubscription

Quick highlights

Borrow fee percentages and shortable share availability, sourced directly from Interactive Brokers public datasets.
Intraday refresh cadence: ~15 minutes during North American trading hours; hourly outside of them on weekdays.
Per-ticker pages show recent borrow snapshots with timestamps, plus options to add tickers to a watchlist or set alerts.
Patron plan ($10/month) unlocks 5+ years of history versus 1 year on free, enables CSV historical export, and expands watchlist capacity to ~50 securities.
Scope limited to Interactive Brokers—availability and fees may differ across other brokers.

Community votes (overall)

0% upvotes 0% downvotes

You haven't voted yet

View full profile Visit site

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.

Community votes (overall)

0% upvotes 0% downvotes

You haven't voted yet

View full profile Visit site

Where they differ

IBorrowDesk

Distinct strengths include:

Short Interest

Borrow fee percentages and shortable share availability, sourced directly from Interactive Brokers public datasets.
Intraday refresh cadence: ~15 minutes during North American trading hours; hourly outside of them on weekdays.
Per-ticker pages show recent borrow snapshots with timestamps, plus options to add tickers to a watchlist or set alerts.
Patron plan ($10/month) unlocks 5+ years of history versus 1 year on free, enables CSV historical export, and expands watchlist capacity to ~50 securities.

InsideArbitrage

Distinct strengths include:

News Calendar Acquisitions Spin-offs Buybacks & Authorizations Dividends Splits Insider Data

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	IBorrowDesk	InsideArbitrage
Categories Which research workflows each platform targets	Shared: Watchlist, Alerts Unique: Short Interest	Shared: Watchlist, Alerts Unique: News, Calendar, Acquisitions, Spin-offs, Buybacks & Authorizations, Dividends, Splits, Insider Data, Institutional Data, 13F, 13D/13G, Regulatory Filings Monitoring, Screeners, Data Visualizations, Portfolio, Blogs, Newsletters, Videos, Playbooks & Case Studies, PDF Annotation
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
Pricing High-level pricing models	Free, Subscription	Free, Subscription
Key features Core capabilities called out by each vendor	Unique Borrow fee percentages and shortable share availability, sourced directly from Interactive Brokers public datasets. Intraday refresh cadence: ~15 minutes during North American trading hours; hourly outside of them on weekdays. Per-ticker pages show recent borrow snapshots with timestamps, plus options to add tickers to a watchlist or set alerts. Patron plan ($10/month) unlocks 5+ years of history versus 1 year on free, enables CSV historical export, and expands watchlist capacity to ~50 securities. Scope limited to Interactive Brokers—availability and fees may differ across other brokers. Site disclaimer notes no affiliation with IBKR; market quotes shown alongside borrow data come from IEX.	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	Not yet	Not yet
Editor pick Featured inside curated shortlists	Standard listing	Standard listing

Frequently Asked Questions

Which workflows do IBorrowDesk and InsideArbitrage both support?

Both platforms cover Watchlist, and Alerts workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do IBorrowDesk and InsideArbitrage require subscriptions?

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

How can you access IBorrowDesk and InsideArbitrage?

Both IBorrowDesk and InsideArbitrage 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?

IBorrowDesk differentiates itself with Borrow fee percentages and shortable share availability, sourced directly from Interactive Brokers public datasets., Intraday refresh cadence: ~15 minutes during North American trading hours; hourly outside of them on weekdays., and Per-ticker pages show recent borrow snapshots with timestamps, plus options to add tickers to a watchlist or set alerts., 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)..

Keep exploring

Stay on top of related tools

Browse the categories and profiles that overlap most with this comparison to round out your shortlist.