In this guide
Key takeaway: Polymarket is a decentralised prediction market where participants acquire YES/NO shares on real-world events denominated in USDC, settled via the Polygon blockchain. Automated smart contracts execute all settlement logic without intermediaries.
What is Polymarket's operating model? Fundamentally, Polymarket functions as a peer-to-peer prediction exchange: rather than wagering against a traditional bookmaker's spread, you transact directly with other market participants who hold opposing views. Market prices continuously reflect the aggregate probability assigned by active traders — shifting instantly as fresh information emerges.
The basics: prediction markets
Prediction markets enable participants to purchase shares representing possible outcomes. Each share delivers a $1 payout upon YES resolution, or $0 upon NO resolution. Acquiring a YES share priced at 40 cents ($0.40) signals your assessment that the event has a 40% likelihood of occurring. Success doubles your capital; failure forfeits your investment.
Polymarket differs from conventional sportsbooks in that no house margin exists (no "vig"). Prices emerge exclusively from the interplay of buyer and seller interest.
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 execution of deposits, settlements, and trading via smart contracts
- Elimination of custodial risk — Polymarket operators cannot seize or redirect user capital
- Near-instantaneous settlement windows measured in minutes rather than business days
USDC: the currency of Polymarket
Polymarket exclusively accepts USDC (USD Coin), a stablecoin maintaining a fixed 1:1 peg against the US dollar. Your account balance remains insulated from crypto market volatility — each USDC token consistently equals one dollar.
How markets resolve
Upon confirmation of an event's actual outcome, Polymarket engages the UMA Oracle (Universal Market Access) to finalise market settlements. An assigned "proposer" posts the resolution; a 2-hour challenge period follows; absent objections, the payout becomes binding. Should disputes arise, UMA token holders participate in decentralised arbitration to determine the correct result.
Getting started on Polymarket
- Establish your account — register via email and satisfy KYC requirements
- Fund your wallet with USDC — choose between MoonPay, direct bank deposits, or transfers from your existing crypto holdings
- Explore available markets — discover opportunities across politics, athletics, digital assets, entertainment and additional categories
- Acquire shares — select YES or NO and specify your position size
- Monitor and liquidate — exit positions whenever desired prior to final resolution
PolyGram streamlines this workflow via an optimised mobile experience and passwordless email authentication. Start trading on PolyGram →
Why Polymarket prices are accurate
Empirical evidence demonstrates that prediction markets consistently surpass traditional polling methodologies and specialist opinion in forecast accuracy. Throughout the 2024 US election cycle, Polymarket's probabilistic assessments demonstrated superior precision relative to established polling organisations. The mechanism driving this superiority: financial incentives compel traders to make rigorous, unbiased probability judgements.