In this guide
Key takeaway: Polymarket is a decentralised prediction market where users trade YES/NO shares on real-world events using USDC on the Polygon blockchain. Automated smart contracts manage all settlement processes.
What is Polymarket fundamentally? Polymarket operates as a decentralised prediction marketplace: rather than wagering against a bookmaker's built-in margin, you exchange positions with other participants who hold opposing views. Market prices continuously evolve to reflect participants' collective probability assessments — shifting instantly as fresh information emerges.
The basics: prediction markets
Prediction markets enable you to acquire shares representing potential outcomes. Each share yields $1 upon YES resolution, or $0 upon NO resolution. When you purchase a YES share priced at 40 cents ($0.40), you're expressing a 40% probability belief. Success doubles your capital; failure forfeits your investment.
Polymarket differs from conventional sportsbooks by eliminating the house margin (the "vig"). Pricing emerges purely from the interplay between buyer and seller demand across the trader base.
How Polymarket uses blockchain
Polymarket operates atop the Polygon blockchain (an Ethereum layer-2 scaling solution). This architecture delivers:
- Complete on-chain transparency and auditability of all activity
- Autonomous smart contracts governing fund management, order execution, and settlement
- Polymarket operators cannot seize assets or alter market conclusions
- Payouts complete within minutes rather than business days
USDC: the currency of Polymarket
Polymarket exclusively employs USDC (USD Coin), a stablecoin maintaining a 1:1 dollar equivalence. Your trading account remains insulated from cryptocurrency price swings — USDC perpetually maintains $1 value.
How markets resolve
Upon event conclusion, Polymarket leverages the UMA Oracle (Universal Market Access) for market settlement. An appointed "proposer" declares the outcome; a 2-hour contestation period follows; absent objections, settlement becomes binding. Contested resolutions escalate to UMA token holders for decentralised arbitration.
Getting started on Polymarket
- Establish your account — register via email and finish identity verification
- Fund your wallet — transfer USDC through MoonPay, conventional banking, or your existing blockchain wallet
- Explore available markets — discover elections, athletics, digital assets, entertainment and countless others
- Acquire shares — select YES or NO and specify your investment amount
- Manage positions — liquidate holdings whenever before the market concludes
PolyGram streamlines this workflow via a mobile-optimised platform and passwordless email authentication. Start trading on PolyGram →
Why Polymarket prices are accurate
Prediction markets have repeatedly surpassed opinion surveys and specialist assessments in accuracy. Throughout 2024's presidential election campaign, Polymarket's forecasted probabilities demonstrated superior precision relative to conventional polling institutions. The mechanism: financial incentives compel participants toward rigorous, unbiased judgement.