Find My Moat

THE COMMUNITY-RANKED INVESTING TOOL LEADERBOARD

Checking

View All OPRA ToolsBack to Data Partner Rankings Home

Live community ranking · Top 1 opra tools

Best tools powered by OPRA

The tools powered by OPRA that investors trust most, ranked by the people who actually use them.

Every platform here leans on OPRA data. We score 1 vetted implementations inside a directory of more than 361 investing tools, so the products investors trust for reliable feeds, support, and licensing rise to the top.

Community-ranked · Live vote totals · Not financial advice

Top 1 Tool

  1. 1
    GammaWins Calculator logo
    Top pick
    GammaWins Calculator

    GammaWins Calculator models option profit and loss, value, Greeks, volatility, and strategy changes across price and time. The core calculator is free. Calculator Pro costs $29 monthly or $299 annually and adds historical market snapshots, volatility-surface analysis, and multi-date or multi-price charts. Market data is delayed by 15 minutes, and the service does not execute trades.

    Best for
    Options dataVisual stock research
    Watch-outs
    Delayed market dataCalculator, not broker execution
    0Data partner votes
    Free tierFree, no signup
    PricingFree • From $299/yr
    Platforms
    Visit site

Prefer free OPRA tools?

Same community ranking, filtered to OPRA tools with durable free tiers. Find tools that deliver real value before you commit to a paid plan.

Explore free OPRA tools

Keep Exploring

All OPRA ImplementationsBrowse every tool powered by OPRA before narrowing your shortlist.
Global RankingSee the overall leaderboard across every investing software category.
Wide Moat StocksBrowse the current moat score ranking and company-level moat notes.
Short InterestDaily tracker for heavily shorted stocks and short squeeze candidates.
Stock RankingsBacktested ranking systems for quality, value, momentum, and more.
Live AnalyticsSee what users are clicking, searching, and voting for across the site.
Research ToolsFind screeners, data platforms, portfolio trackers, and research tools.

Feedback

Spot something off, stale, or missing? Tell us how the data-partner ranking, vote tallies, or a tool listing could be better.

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.