Learn the market

Prediction Markets

A staged path from the basic idea to pricing, settlement, fees and risk.

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What Are Prediction Markets? Definition, examples and boundaries How Prediction Markets Work Contracts, prices and settlement Probability Pricing Read prices as changing estimates Market Resolution Rules, sources and edge cases Fees, Liquidity & Risk Costs, spread and position risk Prediction Market Analysis Evidence-led research methods

Follow the event

Event Trading

Connect real-world catalysts to market questions, evidence and probability moves.

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What Is Event Trading? A concise definition and examples Event Trading Strategies Structured research patterns Reading Probability Movements Interpret repricing without overclaiming Breaking Events and Markets Live-event examples and limitations Event Market Reaction Database Verified data, charts and downloads Risk Management Position sizing and no-entry rules

Neutral comparison first

Platforms

Start with source-backed comparison, then move to availability, reviews and platform-specific rules.

Platforms home Compare Platforms →

Polymarket Review Funding, resolution and risks Kalshi Review Fees, access and market rules PredictIt Guide Political markets, fees and limits Availability Tracker Official access notes and caveats Platform Finder Match platforms to visitor intent Prediction Market Scanner Search current market data

Practical library

Guides

Rules, costs, resolution and liquidity guides grouped by the decision they support.

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How to Read Market Rules Check conditions before entering Prediction Market Fees Compare cost paths and caveats Kalshi Fees Explained Formula and worked examples PredictIt Fees and Limits Withdrawal friction and constraints Polymarket Resolution Disputes Proposals, challenges and UMA Liquidity and Spread Depth, slippage and entry checks

Calculate and verify

Tools & Data

Put mechanics into practice, compare access, scan markets and download research data.

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YES/NO Contract Calculator Cost, payout, loss and fees Beginner Risk Simulator Model sequence and drawdown risk Platform Availability Tracker Access notes from official sources Prediction Market Scanner Grouped current market discovery Reaction Database Verified cases and research exports Platform Comparison Database Source-backed platform facts

Verified changes

News & Updates

Dated platform, fee, resolution-source and regulatory changes checked against primary sources.

Updates archive Browse Verified Updates →

Kalshi Weather Data Resolution-source update Polymarket Sports Fees Taker fee and maker rebate update CFTC Incentive Advisory Regulatory filing guidance Platform Database Compare source-backed platform facts Availability Tracker Check access notes and caveats Fact-Checking Policy How changing claims are verified

Event trading tools

Tools

Focused calculators and reference utilities for thinking through event contracts and prediction market positions.

Calculator

YES/NO Contract Calculator

Estimate implied probability, entry cost, payout, profit, loss, fees, break-even price, and bankroll usage for a mechanical YES or NO contract example.

Open calculator

Simulator

Beginner Risk Simulator

Model bankroll size, risk per trade, win/loss paths, and drawdown before turning a prediction-market idea into a real position.

Tracker

Platform Availability Tracker

Compare official access notes, restricted-location caveats, source links, and last-checked dates before choosing a platform to research further.

Finder

Prediction Market Platform Finder

Choose a use case such as sports, politics, crypto, regulated access, live data, or beginner-friendly discovery, then verify the shortlist against the platform database.

Scanner

Prediction Market Scanner

Browse cached, server-rendered event groups and platform coverage without starting from a raw outcome dump or an empty loading state.