Key takeaway: Polymarket is a decentralised prediction market where traders buy YES/NO shares on real-world events using USDC on the Polygon blockchain. Smart contracts handle all settlements automatically.
How does Polymarket work? Fundamentally, Polymarket functions as a decentralised prediction exchange: rather than placing wagers against a sportsbook's built-in margin, you transact directly with other participants who hold opposing views. Market prices continuously adjust to reflect participants' collective assessment of probability, shifting instantly as fresh information emerges.
The basics: prediction markets
Prediction markets enable you to acquire shares representing potential outcomes. Each share is redeemable for $1 upon a YES resolution, or worthless upon a NO resolution. Purchasing a YES share at $0.40 signals your belief that the event has a 40% likelihood of occurring. Success doubles your investment; failure forfeits your capital.
Polymarket operates without the spread typical of conventional sportsbooks. Participants themselves establish pricing through their collective buying and selling activity.
How Polymarket uses blockchain
Polymarket operates atop the Polygon blockchain (an Ethereum layer-2 solution). This architecture delivers:
- Complete transparency and on-chain auditability of every transaction
- Automated execution of deposits, exchanges, and distributions via smart contracts
- Elimination of centralised control over user funds or outcome determination
- Near-instantaneous settlement rather than multi-day processing
USDC: the currency of Polymarket
Trading exclusively occurs in USDC (USD Coin), a stablecoin maintaining a 1:1 correspondence with the US dollar. Your account remains insulated from cryptocurrency price swings — USDC consistently equals $1 in value.
How markets resolve
Upon an event's conclusion, Polymarket employs the UMA Oracle (Universal Market Access) for market settlement. An appointed proposer declares the outcome; a 2-hour challenge period follows; absent objections, settlement becomes binding. Contested determinations escalate to UMA token holders for decentralised resolution.
Getting started on Polymarket
- Create an account — register via email and complete identity verification requirements
- Deposit USDC — fund through MoonPay, direct bank deposit, or your existing cryptocurrency holdings
- Browse markets — explore offerings spanning elections, athletics, blockchain developments, entertainment and beyond
- Buy shares — select YES or NO and specify your investment amount
- Track and exit — liquidate holdings whenever you choose prior to market conclusion
PolyGram streamlines this workflow through an intuitive mobile platform and straightforward email authentication. Start trading on PolyGram →
Why Polymarket prices are accurate
Prediction markets have repeatedly demonstrated superior forecasting performance relative to conventional polling methodologies and specialist commentary. Throughout the 2024 US election cycle, Polymarket's probability assessments exhibited greater precision than leading polling organisations. The mechanism driving this accuracy: financial incentives compel participants toward rigorous, unbiased evaluation.