What Is Polymarket?
Polymarket is one of the world's largest prediction markets: an online platform where people trade contracts tied to the outcome of real-world events, from elections to interest-rate decisions to sports. Founded in 2020 by Shayne Coplan and built on cryptocurrency rails, it lets traders buy and sell "yes" or "no" shares whose prices move with the crowd's expectations. Those prices act as a running estimate of how likely an event is — a probability, not a guarantee or financial advice.
The basics: what Polymarket is
Polymarket is an event-based trading platform where each market poses a clear question with a defined resolution, such as whether a particular candidate will win an election or whether an economic indicator will cross a threshold by a set date. Participants take positions on the answer, and the market settles once the real-world outcome is known.
It was founded in June 2020 by Shayne Coplan, then in his early twenties, and is headquartered in New York City. Over the following years it grew into one of the most-used prediction markets by trading volume, drawing attention from technologists, investors, and journalists tracking how crowds price uncertainty.
Unlike a poll, which asks people what they think, a prediction market asks people to put money behind what they think. The premise is that aggregating many self-interested forecasts can produce a sharp, continuously updating estimate of an event's likelihood.
How trading works
Polymarket runs on cryptocurrency infrastructure: traders deposit USDC, a US-dollar-pegged stablecoin, and transactions are recorded on the Polygon blockchain. This is what people mean when they call it a crypto-based platform — the unit of account is a stable, dollar-linked token rather than a traditional bank balance.
Most markets are binary, offering "Yes" and "No" shares. Each share pays out 1 dollar if its side is correct and 0 if it is not, so prices trade between 0 and 1 (often shown as 0 percent to 100 percent). A share priced at 0.62, for example, reflects a crowd estimate of roughly a 62 percent chance. Prices move continuously as traders buy and sell, and the cost of a winning bet rises as confidence in that outcome grows.
When an event concludes, the market must be resolved. Polymarket uses a decentralized oracle system (UMA's Optimistic Oracle), in which a proposed outcome can be challenged during a dispute window before payouts are finalized. This community-driven settlement has at times drawn scrutiny over contested resolutions.
What you can trade on
Polymarket's breadth is one of its defining features. Politics has historically driven its biggest volumes — presidential and congressional races, leadership contests, and policy votes — but the catalog extends well beyond elections.
Common categories include cryptocurrency prices (such as whether Bitcoin will close above a level by a date), macroeconomics (central-bank rate decisions, inflation prints), sports outcomes, and a rotating set of current-events questions on geopolitics, technology, business, and culture. Because new markets are created around whatever is in the news, the available questions shift constantly.
For fast-moving specifics — which candidate is favored, or what price a market implies today — it is better to read the live market page directly than to rely on any fixed figure, since these numbers can change by the hour.
US regulatory and availability status
Polymarket's relationship with US regulation has changed significantly over time, and the details matter for who can legally use it.
In January 2022, the US Commodity Futures Trading Commission (CFTC) settled with Polymarket (then operating as Blockratize) over running an unregistered swaps facility, resulting in a 1.4 million dollar penalty. The platform subsequently restricted access for US-based traders for several years.
The picture shifted in 2025. US authorities closed their investigations, and Polymarket acquired a CFTC-licensed derivatives exchange and clearinghouse (the QCX/QCEX entities) for about 112 million dollars, giving it licensed infrastructure to operate domestically. After the CFTC cleared its new exchange, Polymarket received an amended order of designation in late 2025 and began bringing US users back, initially through an invite-only, waitlisted rollout rather than a full public launch. Availability, eligibility, and account requirements continue to evolve, so prospective users should confirm current rules on Polymarket's own site.
Its growing role in news
Beyond trading, Polymarket has become a reference point in journalism. During the 2024 US presidential race, billions of dollars in contracts traded on the outcome, and reporters increasingly cited market-implied odds alongside polls as a real-time gauge of expectations.
This is the lens Crowdtells uses: prediction-market prices can surface which stories the public is watching most closely and how confidence is shifting. They are a useful signal, not a verdict. Markets can be moved by a few large traders, can misprice unlikely events, and reflect beliefs rather than facts. Read them as one probability-based input among many, and pair them with reporting before drawing conclusions.
Frequently asked questions
Is Polymarket legal in the US?
It depends on timing and your location. Polymarket restricted US access after a 2022 CFTC settlement, but in 2025 it acquired a CFTC-licensed exchange and received an amended designation to offer markets to US users, beginning an invite-only rollout in late 2025. Eligibility and requirements can change, so confirm current status directly on Polymarket's site.
Who founded Polymarket and when?
Polymarket was founded in June 2020 by Shayne Coplan, an entrepreneur who started the company in his early twenties. It is headquartered in New York City and has grown into one of the largest prediction markets by trading volume, backed by prominent technology investors over multiple funding rounds.
How does Polymarket make money for traders?
Traders buy Yes or No shares priced between 0 and 1 dollar. If your side is correct when the event resolves, each share pays 1 dollar; if it is wrong, it pays nothing. Profit comes from buying shares for less than their eventual payout, but losses are equally possible. This is speculation, not advice.
What currency does Polymarket use?
Polymarket operates on cryptocurrency rails. Traders deposit and settle in USDC, a stablecoin pegged to the US dollar, and transactions are recorded on the Polygon blockchain. Using a dollar-linked stablecoin keeps prices intuitive — a share at 0.62 reflects roughly a 62 percent implied probability.
Are Polymarket odds accurate predictions?
Prediction-market prices are probability estimates, not guarantees. They aggregate many traders' expectations and can update quickly, which often makes them informative. But they can be skewed by large individual bets, misprice rare events, and reflect belief rather than fact. Treat them as one signal to weigh alongside reporting, not as advice.