★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
InsideArbitrage vs Insider Monitor
Start here
InsideArbitrage
From $100/mo · Web
- You care about news, alerts, and calendar, things Insider Monitor doesn't offer
Pick Insider Monitor instead if
Insider Monitor
Free · Web
- You'd rather start free and only pay if you outgrow it
Skip both if: Neither one clicks with how you research; there are strong third options.
See alternativesOutbound links may include affiliate or sponsor codes.
Our take
The bottom line
InsideArbitrage and Insider Monitor cover a lot of the same ground (2 shared categories, insider data and regulatory filings monitoring), so for the basics you won't go far wrong with either. InsideArbitrage simply does more: 18 categories to Insider Monitor's 2, including news, alerts, and calendar. Insider Monitor counters by being completely free.
What readers say
InsideArbitrage
Vote once to reveal the community verdict.
Insider Monitor
Vote once to reveal the community verdict.
Key differences at a glance
- Free plan
- Insider Monitor
- Broader coverage
- InsideArbitrage18 vs 2 categories
See for yourself
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.ShowHide
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.| Attribute | ||
|---|---|---|
| Pricing & plans | ||
Starting price | From $100/mo | Free |
Free tier | No | Yes |
Free trial | — | — |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | No | No |
Broker sync | No | — |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | — | — |
Categories covered | 18 | 2 |
Regions | North America | North America |
| Data & capabilities | ||
Data quality | 4 signals: Latency: Real-time and End of Day, Granularity: EOD +2 more | 3 signals: Latency: Real-time, Corporate actions: PointInTime +1 more |
Capabilities | Universe builder | — |
| Try it | Visit InsideArbitrage | Visit Insider Monitor |
Where each one shines
What InsideArbitrage and Insider Monitor each do best.ShowHide
Where each one shines
What InsideArbitrage and Insider Monitor each do best.What InsideArbitrage does best
- Tracking announced merger-arbitrage deals with spread context, calendars, deal updates, Deals in the Works, and post-mortem research.
- Tracked-deal workflows to filter relevant news, SEC filings, and tweets around the active-deal symbols a premium user follows.
- Research coverage for insider activity with Insider Weekends, cluster buys, buys near highs, flip-floppers, top-performing insiders, sector heat maps, and premium insider screens.
- Monitoring buyback situations through daily buyback announcements, searchable buyback history, Buyback Wednesdays, and Double Dipper screens that combine insider buying with repurchases.
- Monitoring spinoffs, completed spinoffs, Spinsider ideas, CVR deals, CVR outcomes, tender offers, reverse splits, activist campaigns, C-suite transitions, and M&A news feeds.
What Insider Monitor does best
- Browsing access to a real-time insider tape with purchases and sales, filing timestamps, issuer details, insider roles, transaction values, and direct SEC filing links.
- Officer cluster-buy reports to find tickers bought by multiple corporate officers over the past two weeks.
- Views for reviewing weekly and monthly top-10 lists for the largest insider purchases when looking for high-value Form 4 activity.
- Direct access to company and trader pages for per-issuer and per-insider transaction history, monthly summaries, year summaries, CIK references, and SEC source links.
- Industry views to compare Form 4 filing counts across broad industry divisions since 2020.
Every detail we compared
Every tracked attribute for InsideArbitrage and Insider Monitor, side by side.ShowHide
Every detail we compared
Every tracked attribute for InsideArbitrage and Insider Monitor, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFs | StocksClosed-End Funds |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Regions | North America | North America |
Coverage details | Countries: USExchanges: XNYS, XNAS, and ARCXIdentifiers: Ticker and CIK | Countries: US5 exchangesIdentifiers: Ticker |
| Data | ||
Data freshness | Real-timeEnd of Day | Real-time |
Data granularity | EOD | Not specified |
| Access & integrations | ||
Import methods | Manual | Not specified |
| Plans & trust | ||
Capability signals | Universe builder | Not specified |
Vendor & support | InsideArbitrageCountry: USSupport: Email | Insider MonitorSupport: Email |
Curation ratings | Methodology 3/5Reliability 3/5UX 4/5 | Methodology 2/5Reliability 3/5UX 3/5 |
Green tags are exclusive to that tool in this comparison.
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.ShowHide
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.| Tier | ||
|---|---|---|
| Free plan | — | Free |
| Entry paid plan | $100/mo“Premium – Annual” | — |
| Tier 2 | $150/mo“Premium – Monthly” | — |
| Tier 3 | $300/mo“IA Professional – Annual” | — |
| Top plan | $400/mo“IA Professional (4 seats)” | — |
Questions we keep getting
What's the difference between InsideArbitrage and Insider Monitor?
InsideArbitrage leans toward news, alerts, and calendar, while Insider Monitor puts more weight on insider data and regulatory filings monitoring. They overlap in 2 categories, so for most people it comes down to workflow preference and price.
Is InsideArbitrage or Insider Monitor free to use?
Insider Monitor has a free tier, so you can get started without paying anything. InsideArbitrage is paid-only. If budget matters, start with Insider Monitor and see how far it takes you before opening your wallet.
Should I choose InsideArbitrage or Insider Monitor?
It depends on what you're after. Pick InsideArbitrage if news and alerts matter to you; go with Insider Monitor if you prefer its overall approach. And if you only need the basics both share, let price decide.
What asset classes do InsideArbitrage and Insider Monitor cover?
Both cover stocks. InsideArbitrage also handles ETFs. Insider Monitor adds closed-end funds on top.
Do InsideArbitrage and Insider Monitor offer real-time data?
Yes, both serve real-time market data, so either works when timing matters.
Which has a better stock screener: InsideArbitrage or Insider Monitor?
InsideArbitrage has a stock screener for surfacing ideas; Insider Monitor doesn't, and focuses its energy elsewhere.
Can I track my portfolio with InsideArbitrage or Insider Monitor?
InsideArbitrage handles portfolio tracking. Insider Monitor is really a research tool; you'd track your portfolio elsewhere.
Keep researching
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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.