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.
What is Polymarket fundamentally? Polymarket operates as a decentralised prediction marketplace: rather than wagering against a traditional bookmaker's spread, you exchange positions with other market participants who hold opposing views. The market price continuously reflects participants' aggregate probability assessments — shifting instantly as fresh information emerges.
The basics: prediction markets
Prediction markets function by allowing participants to acquire shares representing possible outcomes. Each share is redeemable for $1 upon YES resolution, or worthless upon NO resolution. Purchasing a YES share at $0.40 signals your belief that a 40% probability exists for that outcome. Success means your capital doubles; failure means you forfeit your investment.
Polymarket operates differently from conventional bookmakers in that it applies no margin (the "vig"). Market participants themselves determine pricing through their collective buying and selling activity.
How Polymarket uses blockchain
Polymarket operates atop the Polygon blockchain (an Ethereum layer-2 scaling solution). This architecture delivers:
- Complete transparency and on-chain verifiability for every transaction
- Automated execution of deposits, exchanges, and distributions via smart contracts
- Elimination of centralised control over user funds or settlement outcomes
- Near-instantaneous settlement rather than multi-day processing
USDC: the currency of Polymarket
Polymarket exclusively facilitates trading in USDC (USD Coin), a stablecoin maintaining a consistent 1:1 relationship with the US dollar. Your trading account remains insulated from cryptocurrency price fluctuations — each USDC maintains a fixed $1 valuation.
How markets resolve
Upon an event's conclusion, Polymarket employs the UMA Oracle (Universal Market Access) for market settlement. An individual submits the final outcome; a 2-hour challenge period follows; absent objections, settlement becomes binding. Should disputes arise, UMA token holders participate in decentralised arbitration to determine the correct resolution.
Getting started on Polymarket
- Establish your account — register via email and complete identity verification requirements
- Fund your account with USDC — utilise MoonPay, conventional banking channels, or transfer from your existing cryptocurrency holdings
- Explore available markets — discover offerings spanning politics, athletics, digital assets, entertainment and numerous other categories
- Acquire shares — select your position direction and specify your investment amount
- Monitor and liquidate — exit your holdings whenever you choose prior to market conclusion
PolyGram streamlines this workflow through an intuitive mobile-optimised platform and straightforward email authentication. Start trading on PolyGram →
Why Polymarket prices are accurate
Prediction markets consistently demonstrate superior forecasting performance relative to conventional polling methodologies and professional analyst predictions. Throughout the 2024 US election cycle, Polymarket's probability assessments outperformed the majority of established polling organisations. The mechanism driving this accuracy: participants commit genuine capital, creating powerful incentives for rigorous, unbiased evaluation.