InsideArbitrage adds News, Calendar, Acquisitions, Spin-offs, Buybacks & Authorizations, Dividends, Splits, Insider Data, Institutional Data, 13F, 13D/13G, Regulatory Filings Monitoring, Data Visualizations, Blogs, Newsletters, Videos, Playbooks & Case Studies, and PDF Annotation coverage that MarketInOut skips.
VOL. XCIV, NO. 247
★ FINANCIAL TOOLS & SERVICES DIRECTORY ★
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Wednesday, December 3, 2025
Tool Comparison
InsideArbitrage vs MarketInOut comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
Quick takeaways
MarketInOut includes Backtesting, Correlation, and APIs & SDKs 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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MarketInOut
marketinout.com
Screener and backtesting platform with one-time memberships (6-month, 1-year, or 2-year). A limited free tier is available, but some results and features are gated. Supports near real-time data for U.S. equities, TSX, Forex, and Crypto; other exchanges are delayed by 15 minutes. Intraday periods are available for IEX, Forex, and Crypto only; extended-hours data is not supported. API access for screener data can be requested separately. Discounts are offered for crypto payments.
Platforms
Web
Pricing
FreeOne-time
Quick highlights
- Multi-market stock screener covering 35+ exchanges, with both technical and fundamental criteria. Filters can be applied by exchange, sector, industry, index, or watchlist. Timeframes include hourly, daily, weekly, and monthly, with per-stock Excel exports.
- Intraday timeframes (5m/15m/30m/1h/4h) are available for IEX, Forex, and Crypto. Extended-hours trading is not supported.
- Formula Screener allows custom queries with AND/OR/NOT logic, multi-timeframe conditions, historical/range screening, index and ticker references, and regime filters.
- Email or Telegram alerts for screener matches, with scheduled delivery options. SMS delivery is not guaranteed.
- Strategy Backtester supports entry/exit rules, stop-loss/take-profit, and position maintenance. Data is survivorship-bias-free (includes delisted stocks).
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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.
MarketInOut
Distinct strengths include:
- Multi-market stock screener covering 35+ exchanges, with both technical and fundamental criteria. Filters can be applied by exchange, sector, industry, index, or watchlist. Timeframes include hourly, daily, weekly, and monthly, with per-stock Excel exports.
- Intraday timeframes (5m/15m/30m/1h/4h) are available for IEX, Forex, and Crypto. Extended-hours trading is not supported.
- Formula Screener allows custom queries with AND/OR/NOT logic, multi-timeframe conditions, historical/range screening, index and ticker references, and regime filters.
- Email or Telegram alerts for screener matches, with scheduled delivery options. SMS delivery is not guaranteed.
Feature-by-feature breakdown
| Attribute | InsideArbitrage | MarketInOut |
|---|---|---|
Categories Which research workflows each platform targets | Shared: Alerts, Screeners, Portfolio, Watchlist Unique: News, Calendar, Acquisitions, Spin-offs, Buybacks & Authorizations, Dividends, Splits, Insider Data, Institutional Data, 13F, 13D/13G, Regulatory Filings Monitoring, Data Visualizations, Blogs, Newsletters, Videos, Playbooks & Case Studies, PDF Annotation | Shared: Alerts, Screeners, Portfolio, Watchlist Unique: Backtesting, Correlation, APIs & SDKs |
Asset types Supported asset classes and universes | Stocks, ETFs | Stocks, ETFs, Currencies, Cryptos |
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, One-time |
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 MarketInOut both support?
Both platforms cover Alerts, Screeners, Portfolio, and Watchlist workflows, so you can research those use cases in either tool before digging into the feature differences below.
Do InsideArbitrage and MarketInOut require subscriptions?
Both InsideArbitrage and MarketInOut keep freemium access with optional paid upgrades, so you can trial each platform before committing.
How can you access InsideArbitrage and MarketInOut?
Both InsideArbitrage and MarketInOut 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 MarketInOut stands out for Multi-market stock screener covering 35+ exchanges, with both technical and fundamental criteria. Filters can be applied by exchange, sector, industry, index, or watchlist. Timeframes include hourly, daily, weekly, and monthly, with per-stock Excel exports., Intraday timeframes (5m/15m/30m/1h/4h) are available for IEX, Forex, and Crypto. Extended-hours trading is not supported., and Formula Screener allows custom queries with AND/OR/NOT logic, multi-timeframe conditions, historical/range screening, index and ticker references, and regime filters..
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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.