★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
InsideArbitrage vs SecForm4.Com
Start here
InsideArbitrage
From $100/mo · Web
- You care about news, alerts, and calendar, things SecForm4.Com doesn't offer
Pick SecForm4.Com instead if
SecForm4.Com
Free · Web
- You'd rather start free and only pay if you outgrow it
- You care about money flow, something InsideArbitrage doesn't offer
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 SecForm4.Com cover a lot of the same ground (6 shared categories, including dividends, insider data, and institutional ownership), so for the basics you won't go far wrong with either. InsideArbitrage simply does more: 18 categories to SecForm4.Com's 7, including news, alerts, and calendar. SecForm4.Com counters by being completely free.
What readers say
InsideArbitrage
Vote once to reveal the community verdict.
SecForm4.Com
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Key differences at a glance
- Free plan
- SecForm4.Com
- Broader coverage
- InsideArbitrage18 vs 7 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 | No |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | — | — |
Categories covered | 18 | 7 |
Regions | North America | North America |
| Data & capabilities | ||
Data quality | 4 signals: Latency: Real-time and End of Day, Granularity: EOD +2 more | Latency: Real-time and Timezone: America/New_York |
Capabilities | Universe builder | — |
| Try it | Visit InsideArbitrage | Visit SecForm4.Com |
Where each one shines
What InsideArbitrage and SecForm4.Com each do best.ShowHide
Where each one shines
What InsideArbitrage and SecForm4.Com 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 SecForm4.Com does best
- Tracking real-time Form 4 insider transactions with Insider Watch and company-level ownership views.
- Monitoring SEC Forms 3, 4, 5, 13D/G, and 13F for U.S. insider, activist, and institutional ownership research.
- Insider and ownership views to filter recent transactions, company activity, and disclosure history before validating the original SEC filing.
- The Insider Trading Screener to filter by role, sector, or time window where the public site exposes those views.
- Buy/sell ratio charts to compare filing counts and dollar flows over time where available.
Every detail we compared
Every tracked attribute for InsideArbitrage and SecForm4.Com, side by side.ShowHide
Every detail we compared
Every tracked attribute for InsideArbitrage and SecForm4.Com, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFs | StocksOptionsBonds |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Regions | North America | North America |
Coverage details | Countries: USExchanges: XNYS, XNAS, and ARCXIdentifiers: Ticker and CIK | Countries: USIdentifiers: 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 | SecForm4.Com, Inc.Country: United StatesSupport: Email |
Curation ratings | Methodology 3/5Reliability 3/5UX 4/5 | Methodology 3/5Reliability 4/5UX 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“Free access” |
| 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 SecForm4.Com?
InsideArbitrage leans toward news, alerts, and calendar, while SecForm4.Com puts more weight on insider data, institutional ownership, and watchlist. They overlap in 6 categories, so for most people it comes down to workflow preference and price.
Is InsideArbitrage or SecForm4.Com free to use?
SecForm4.Com has a free tier, so you can get started without paying anything. InsideArbitrage is paid-only. If budget matters, start with SecForm4.Com and see how far it takes you before opening your wallet.
Should I choose InsideArbitrage or SecForm4.Com?
It depends on what you're after. Pick InsideArbitrage if news and alerts matter to you; go with SecForm4.Com if you'd rather have money flow. And if you only need the basics both share, let price decide.
What asset classes do InsideArbitrage and SecForm4.Com cover?
Both cover stocks. InsideArbitrage also handles ETFs. SecForm4.Com adds options and bonds on top.
Do InsideArbitrage and SecForm4.Com 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 SecForm4.Com?
Both InsideArbitrage and SecForm4.Com include stock screeners, and they differ more in interface than raw power; try both and see which one clicks for you.
Can I track my portfolio with InsideArbitrage or SecForm4.Com?
InsideArbitrage handles portfolio tracking. SecForm4.Com is really a research tool; you'd track your portfolio elsewhere.
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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.