VOL. XCIV, NO. 247
★ BEST INVESTING TOOLS COMPARISON ★
NO ADVICE
Wednesday, January 7, 2026
Tool Comparison
GammaWins Calculator vs OpenInsider comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
OpenInsider
openinsider.com
Comparison highlights
- Tool score: the chart below shows community vote sentiment over the last 8 weeks. Use it as a signal, not a verdict.
- Overlap: both cover Data Visualizations.
- Coverage tilt: GammaWins Calculator has 2 categories you won't get in OpenInsider; OpenInsider has 2 unique categories.
- Curation signals: OpenInsider: Editor's pick + Hands-on review.
Category leaders
- Screeners: OpenInsider is tagged for this workflow; GammaWins Calculator has no category votes yet.
- Data Visualizations: not enough category votes yet to call a leader.
Vote sentiment comparison
Cumulative positive vote share. Loading fresh totals...
Side-by-side metrics
| Attribute | GammaWins Calculator | OpenInsider |
|---|---|---|
Asset types Supported asset classes and universes | Options, Stocks | Stocks, Closed-End Funds |
Experience levels Who each product is built for | Intermediate, Advanced | Beginner, Intermediate, Advanced |
Platforms Where you can access the product | Web | Web |
Pricing High-level pricing models | Free | Free |
Tested Verified by hands-on testing inside Find My Moat | Not yet | Yes |
Editor pick Featured inside curated shortlists | Standard listing | Highlighted |
Coverage overlap
GammaWins Calculator strengths
Categories covered by GammaWins Calculator but not OpenInsider.
OpenInsider strengths
Categories covered by OpenInsider but not GammaWins Calculator.
Frequently Asked Questions
Which workflows do GammaWins Calculator and OpenInsider both support?
Both platforms cover Data Visualizations workflows, so you can research those use cases in either tool before digging into the feature differences below.
Do GammaWins Calculator and OpenInsider require subscriptions?
Both GammaWins Calculator and OpenInsider keep freemium access with optional paid upgrades, so you can trial each platform before committing.
How can you access GammaWins Calculator and OpenInsider?
Both GammaWins Calculator and OpenInsider 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?
GammaWins Calculator differentiates itself with Payoff/strategy value visualization over time and underlying price, with optional Greeks overlays., Built-in templates for common options strategies (single-leg, spreads, volatility, and complex multi-leg strategies) and supports building custom multi-leg strategies., and Supports US equity and equity-index options plus Danish/Swedish/Norwegian equity and index options listed on Nasdaq Nordic., whereas OpenInsider stands out for Real-time SEC Form 4 insider trading screener for insider buying and selling., Pre-built report pages such as “Latest Insider Purchases”., and “Insider Buy-Sell Charts” page for visualizing insider activity..
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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.