In this guide
Key takeaway: Polymarket is a decentralised prediction market where participants acquire YES/NO shares on real-world events using USDC on the Polygon blockchain. Automated smart contracts manage all settlement processes.
What is Polymarket's operational model? Fundamentally, Polymarket functions as a prediction marketplace: rather than wagering against a bookmaker's spread, you exchange positions with other market participants who hold differing views. Market prices continuously evolve to reflect aggregate participant sentiment — adjusting instantly as fresh information emerges.
The basics: prediction markets
Prediction markets enable you to acquire shares representing different outcomes. Each share yields $1 upon YES resolution, or $0 upon NO resolution. Purchasing a YES share for 40 cents ($0.40) signals your assessment that a 40% probability exists for that outcome. Success means doubling your investment; failure means forfeiting your capital.
Polymarket operates differently from conventional bookmakers, as it imposes no spread (the "vig"). Market participants themselves determine pricing through their collective buying and selling activity.
How Polymarket uses blockchain
Polymarket operates atop the Polygon blockchain (a layer-2 scaling solution extending Ethereum). This architecture delivers:
- Complete on-chain transparency and auditability of every transaction
- Automated execution of deposits, trading, and settlement via smart contracts
- Elimination of centralised control — Polymarket operators cannot restrict access or alter results
- Near-instantaneous finalisation in place of multi-day clearing periods
USDC: the currency of Polymarket
Polymarket exclusively utilises USDC (USD Coin), a stablecoin maintaining a 1:1 correspondence with the US dollar. Your trading balance remains insulated from cryptocurrency price fluctuations — each USDC unit consistently equals $1.
How markets resolve
Upon confirmation of an event's outcome, Polymarket engages the UMA Oracle (Universal Market Access) to finalise market settlements. An authorised "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
- Establish your account — register via email and satisfy identity verification requirements
- Transfer USDC funds — utilise MoonPay, direct bank transfer, or imported cryptocurrency holdings
- Explore available markets — spanning elections, athletics, digital assets, entertainment and beyond
- Acquire shares — select YES or NO and specify your investment amount
- Manage positions — liquidate holdings anytime prior to market conclusion
PolyGram streamlines this workflow through an optimised mobile platform and passwordless email authentication. Start trading on PolyGram →
Why Polymarket prices are accurate
Prediction markets have repeatedly demonstrated superior forecasting performance relative to conventional surveys and specialist commentary. Throughout the 2024 US election period, Polymarket's probability assessments surpassed accuracy benchmarks set by leading polling organisations. The mechanism: financial incentives compel participants toward genuine, unbiased judgement.