Polymarket is a prediction market platform where users buy and sell shares tied to the outcome of real-world events. Instead of betting against a house, traders buy “Yes” or “No” shares on questions like “Will Bitcoin hit $100,000 in 2026?” or “Will a specific candidate win an election?” Share prices move between $0.00 and $1.00 based on supply and demand, and winning shares pay out exactly $1.00 each. The result is a live, crowd-sourced probability estimate for thousands of events across politics, finance, sports, and culture.
How Shares and Prices Work
Every market on Polymarket is structured around a question with defined outcomes. For a simple yes-or-no question, the platform creates two types of shares: Yes shares and No shares. If Yes shares are currently trading at $0.65, the market collectively believes there’s roughly a 65% chance the event will happen. No shares in that same market would trade near $0.35, since the two prices generally add up to about $1.00.
If you buy Yes shares at $0.65 and the event happens, each share pays out $1.00, netting you $0.35 in profit per share. If the event doesn’t happen, your shares are worth nothing. You don’t have to hold until the market resolves, though. You can sell your shares at any time if the price moves in your favor, locking in a gain without waiting for the final outcome.
This structure is what makes prediction markets useful beyond trading. Because share prices reflect the collective knowledge and money of all participants, they often serve as real-time probability trackers. News organizations and analysts regularly cite Polymarket odds as a gauge of public sentiment on elections, policy decisions, and other high-profile events.
The Currency: pUSD
Polymarket runs on pUSD (Polymarket USD), a token pegged to the US dollar. Each pUSD is backed one-to-one by USDC, a widely used stablecoin, with that backing enforced by the platform’s smart contract. This means you’re trading in dollar-equivalent value rather than a volatile cryptocurrency. When a market is created, $1 in pUSD mints one Yes share and one No share. At resolution, the winning side redeems each share for $1.00, while the losing side gets $0.00.
Signing Up and Funding an Account
You don’t need a crypto wallet or blockchain experience to create an account. Polymarket lets you sign up with a Google account or an email address. The email option sends a six-digit verification code, and you’re in. The platform handles wallet creation behind the scenes.
To fund your account, you can deposit USDC directly if you already hold crypto, or use a fiat on-ramp to convert dollars from a debit card or bank transfer into the pUSD you need for trading. The platform is built on Polygon, a blockchain network designed for fast, low-cost transactions, so deposits and trades settle quickly without the high fees associated with the main Ethereum network.
How Markets Get Resolved
When an event’s outcome becomes known, the market needs to officially close and pay out winners. Polymarket uses a system called the UMA Optimistic Oracle to handle this in a decentralized way rather than relying on a single authority to call the result.
Every market has pre-defined resolution rules that specify the source of truth (an official announcement, a specific website, a government report), the end date, and how edge cases should be handled. Once the event concludes, anyone can propose the outcome by selecting the winner and posting a bond, typically $750 in pUSD. This kicks off a two-hour challenge period. If nobody disputes the proposal, the market resolves and shareholders can redeem their winnings. Uncontested markets close in roughly two hours.
If someone believes the proposed outcome is wrong, they can dispute it by posting a counter-bond of the same amount. A disputed proposal triggers a second round. If that round is also contested, the question escalates to UMA’s Data Verification Mechanism, where UMA token holders vote on the correct outcome after a 24-to-48-hour debate period. The full voting process takes about 48 hours. A disputed resolution can take four to six days from start to finish, but most markets resolve without controversy.
In rare cases where unforeseen circumstances create ambiguity, Polymarket can publish an “Additional context” update on-chain. These clarifications can’t change the fundamental intent of the original question but help voters interpret tricky situations.
Regulatory History in the US
Polymarket’s legal status in the United States is shaped by a settlement with the Commodity Futures Trading Commission. In January 2022, the CFTC charged the platform’s parent company, Blockratize Inc., with offering unregistered binary options trading to US customers. The agency argued that Polymarket was operating as a facility for trading swaps without registering as a swap execution facility or designated contract market.
Polymarket settled the charges, agreeing to pay a $1.4 million civil penalty and to cease offering those products to US users without proper registration. As a result, the platform currently restricts access for US residents. Users outside the United States can trade freely, while US-based users face limitations on the types of markets they can participate in.
What People Trade On
Markets on Polymarket span a wide range of categories. Political events tend to generate the highest volume, particularly US presidential elections and major policy decisions. Crypto-related markets are also popular: questions like “What price will Bitcoin hit in 2026?” have attracted tens of millions of dollars in trading volume on their own. Other active categories include geopolitical events, central bank interest rate decisions, sports outcomes, and cultural moments like award shows or viral news stories.
The platform aggregates real-time odds across all active markets, giving users a dashboard view of how collective sentiment is shifting on dozens of events at once. Individual markets can range from a few thousand dollars in volume for niche questions to tens of millions for headline events.
Why Prediction Markets Matter
Prediction markets operate on a simple premise: people with real money at stake tend to be more honest and careful than people answering a poll. When traders risk their own dollars on an outcome, they have a financial incentive to incorporate all available information rather than defaulting to wishful thinking or tribal loyalty. Research going back decades has shown that prediction markets often outperform expert forecasts and opinion polls, particularly for binary outcomes.
For individual users, Polymarket offers a way to profit from knowledge and judgment about world events. For the broader public, the platform’s prices serve as a transparent, constantly updating signal of how likely various outcomes are. That signal is only as good as the liquidity behind it, meaning markets with more money and more participants tend to produce more reliable probabilities than thinly traded ones.