Guide

What is Polymarket? The Complete Guide to Prediction Markets in 2026

March 20, 2026 · 8 min read

Polymarket is the world's largest prediction market platform. It lets anyone trade on the outcome of real-world events — from presidential elections to Fed rate decisions to crypto prices to sports results — using USDC stablecoin on the Polygon blockchain.

How Does Polymarket Work?

Polymarket markets work like this: each event has YES and NO shares that trade between $0.01 and $1.00. The price represents the market's collective probability estimate. If an event is at 72%, it means traders collectively believe there's a 72% chance it will happen.

When the event resolves:

All settlements are automatic via Polygon smart contracts. No human involvement in payouts.

Why Did Polymarket Become Famous?

Polymarket gained massive mainstream attention during the 2024 US presidential election. While traditional polling showed an extremely close race, Polymarket markets had Donald Trump at 65-70%+ winning probability for weeks before election day. Trump won. This sharply contrasted with polling aggregators and prediction models, making Polymarket a household name in forecasting circles.

The platform was cited by Bloomberg, the New York Times, Reuters, the Financial Times, and dozens of other major media outlets as a superior forecasting tool.

What Can You Trade on Polymarket?

Polymarket hosts 1,000+ active markets across categories including:

How Is Polymarket Different From Sports Betting?

PolymarketSports Betting
Exit before resolution✓ Yes — sell anytime✗ Usually no
Effective fees~2%5–10% vig
TopicsAnything (politics, economics, etc.)Mostly sports
CurrencyUSDC (crypto)USD
RegulationUnregulated (offshore)Licensed in many states

Who Uses Polymarket?

Polymarket attracts a wide range of users: professional traders seeking alpha from political markets, researchers and forecasters who want financial stakes in their predictions, crypto enthusiasts who want to put their market knowledge to work, and informed citizens who follow news closely and believe they can identify market inefficiencies.

Explore Polymarket Markets Now

1,000+ live prediction markets with real-time odds. No signup required to browse.

Browse Markets →