Comparison guide
Kalshi vs Polymarket vs PredictIt: Research Comparison
A neutral comparison framework for people researching regulated event contracts and prediction-market style platforms.
Educational note: This guide explains probability and market structure. It is not a recommendation to trade, and availability depends on local rules.
Compare structure, not slogans
Different platforms can vary by regulation, availability, asset rails, contract design, fees, market coverage and resolution process.
Checklist
- Is the platform available in your location?
- What are the funding and withdrawal rails?
- How are events resolved?
- How liquid are the markets you care about?
- What fees and spreads apply?
Research-first approach
Use platform comparison articles to understand trade-offs. Do not assume that a price on one venue is directly comparable without checking rules and costs.
Next step: compare a market price with your own estimate, then read the rules before opening any external market.
Use the calculatorOpen Polymarket