In this guide
Key takeaway: Polymarket is a decentralised prediction market where participants acquire YES/NO shares on real-world events denominated in USDC on the Polygon blockchain. Settlement occurs automatically through smart contract execution.
How does Polymarket work? Fundamentally, Polymarket functions as a peer-to-peer prediction exchange: rather than wagering against a centralised bookmaker's spread, you transact directly with other market participants who hold opposing views. Market prices continuously reflect aggregate trader conviction — adjusting instantaneously as fresh information enters the marketplace.
The basics: prediction markets
Prediction markets enable you to acquire equity positions in discrete outcomes. Each share yields $1 upon YES resolution, or $0 upon NO resolution. Purchasing a YES share at 40 cents ($0.40) signals your assessment that the underlying event carries a 40% probability of occurrence. Correct predictions double your capital; incorrect ones result in capital loss.
Polymarket operates without the commission structure typical of conventional sportsbooks. Pricing emerges solely through equilibrium 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 cryptographic auditability of all activity
- Autonomous execution of deposits, settlement, and fund distribution via smart contract protocols
- Elimination of counterparty risk — the Polymarket operator cannot seize assets or alter settlement outcomes
- Near-instantaneous clearing cycles, measured in minutes rather than business days
USDC: the currency of Polymarket
Polymarket exclusively utilises USDC (USD Coin), a collateralised stablecoin maintaining strict 1:1 parity with the US dollar. Trading accounts remain insulated from cryptocurrency price fluctuations — each USDC unit consistently maintains dollar equivalence.
How markets resolve
Upon event conclusion, Polymarket engages the UMA Oracle (Universal Market Access) infrastructure to finalise market settlement. An outcome proposer submits their assertion; a 2-hour challenge interval permits dispute; absent contestation, payouts execute immediately. Contested determinations escalate to UMA governance token holders, who arbitrate through decentralised voting.
Getting started on Polymarket
- Create an account — register via email and satisfy KYC verification requirements
- Deposit USDC — transfer funds via MoonPay, conventional banking channels, or existing cryptocurrency holdings
- Browse markets — explore electoral contests, athletic competitions, digital assets, entertainment and additional categories
- Buy shares — select YES or NO and specify your investment amount
- Track and exit — liquidate your holdings at any moment prior to market resolution
PolyGram streamlines this workflow through a consumer-centric mobile application and passwordless authentication. Start trading on PolyGram →
Why Polymarket prices are accurate
Empirical research demonstrates that prediction markets systematically surpass conventional polling methodologies and specialist opinion in forecast accuracy. Throughout the 2024 US electoral cycle, Polymarket's probability distributions exhibited superior predictive performance relative to mainstream polling indices. This phenomenon stems from financial incentives embedded in the mechanism — participants deploying capital face direct pecuniary consequences for misalignment with ground truth.