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 functions as a decentralised prediction marketplace: rather than wagering against a traditional bookmaker's built-in profit margin, you exchange positions with other participants who hold opposing views on an outcome. Market prices continuously evolve to mirror participants' collective assessment of likelihood — shifting instantly as fresh information emerges.
The basics: prediction markets
Prediction markets enable you to acquire shares representing possible outcomes. Each share is worth $1 upon YES resolution, or $0 upon NO resolution. Should you purchase a YES share for 40 cents ($0.40), you're expressing belief in a 40% likelihood of that outcome occurring. Success doubles your capital; failure forfeits your investment.
Polymarket differs from conventional bookmakers by eliminating the house edge (the "vig"). Prices emerge solely from what buyers and sellers are willing to exchange.
How Polymarket uses blockchain
Polymarket operates atop the Polygon blockchain (a layer-2 scaling solution layered over Ethereum). This architecture delivers:
- Complete transparency and on-chain verifiability of every transaction
- Automated execution of deposits, trading activity, and settlement through smart contracts
- Immunity from Polymarket operators freezing or altering outcomes
- Resolution occurring within minutes rather than extended periods
USDC: the currency of Polymarket
Polymarket trading exclusively utilises USDC (USD Coin), a stablecoin maintaining a 1:1 correspondence with the US dollar. Your trading account remains unaffected by cryptocurrency price swings — USDC consistently equals $1.
How markets resolve
Upon an event's conclusion becoming established, Polymarket employs the UMA Oracle (Universal Market Access) to finalise market outcomes. An individual "proposer" declares the result; a 2-hour contestation period follows; absent objections, settlement becomes binding. Contested determinations proceed to a vote among UMA token holders — a decentralised resolution mechanism.
Getting started on Polymarket
- Create an account — register via email and complete identity verification requirements
- Deposit USDC — fund your account through MoonPay, direct bank transfer, or existing cryptocurrency holdings
- Browse markets — explore elections, athletics, digital assets, entertainment and numerous other categories
- Buy shares — select YES or NO and specify your investment amount
- Track and exit — liquidate your holdings whenever you wish prior to market conclusion
PolyGram streamlines this workflow through a mobile-optimised platform and email-based 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 cycle, Polymarket's probability assessments surpassed accuracy levels achieved by leading polling organisations. The mechanism: financial incentives compel participants toward rigorous, unbiased evaluation.