What is Polymarket? Complete Guide (2026)

What is Polymarket?

Polymarket is the world's largest prediction market. You buy and sell shares on the outcome of real-world events: elections, sports, crypto prices, geopolitics, tech, culture. If your prediction is correct, each share pays $1. If you're wrong, it pays $0. The share price at any moment reflects the crowd's estimated probability that the event will happen.

Founded in 2020 by Shayne Coplan during the COVID-19 pandemic, Polymarket has grown from a niche crypto experiment into a global platform processing billions of dollars in monthly volume. In 2024, it handled over $3.7 billion in trades on the US presidential election alone. In 2025, Intercontinental Exchange (the company that owns the New York Stock Exchange) invested $2 billion in Polymarket at an $8 billion valuation.

New to prediction markets? Read our complete beginner guide to understand how they work before diving into Polymarket specifically.

How does Polymarket work?

Every market on Polymarket asks a simple Yes or No question. "Will Bitcoin hit $100K by June 2026?" or "Will the Fed cut rates at the next meeting?" or "Who will win the Super Bowl?"

The price of each share reflects the crowd's probability estimate. A "Yes" share at $0.65 means the crowd thinks there's a 65% chance the event happens. A "Yes" share at $0.12 means 12%.

You make money when you're right and the crowd is wrong. If you buy "Yes" at $0.40 and the event happens, you get $1 per share. That's a $0.60 profit on every share. If the event doesn't happen, your shares are worth $0.

You don't have to wait for the result. You can sell your shares at any time at the current market price, exactly like selling a stock.

What can you trade on Polymarket?

Polymarket covers almost every topic you can think of, as long as the outcome is verifiable and has a clear deadline.

As of early 2026, Polymarket hosts hundreds of active markets across these categories, with over $20 billion in monthly trading volume driven largely by geopolitics and macro events.

Who uses Polymarket?

Polymarket attracts a wide range of users. Some are casual traders who follow politics or sports and want to put their knowledge to work. Others are professional quantitative traders and algorithmic trading firms that provide liquidity and correct mispriced markets.

The platform's user base grew massively during the 2024 US election. CNN, Bloomberg, the Financial Times and Yahoo Finance started citing Polymarket odds as a real-time information source. Nate Silver, the founder of FiveThirtyEight, became an advisor to the company.

The key insight: you don't need to be a finance or crypto expert. If you know a lot about one specific topic (football, politics, AI, whatever), you already have an edge in markets related to that topic.

Want to learn how to find and exploit that edge? Read our trading strategies guide and our guide to finding edge on Polymarket.

What currency does Polymarket use?

All trades on Polymarket happen in USDC, a stablecoin pegged 1:1 to the US dollar. 1 USDC always equals $1. Your funds don't fluctuate with crypto prices while they sit in your account.

You can deposit via credit card, Apple Pay, Google Pay, or by transferring crypto directly. Card deposits are instant with a small processing fee (around 2-3%). Crypto transfers are cheaper but require you to already have USDC or another supported token.

For a step-by-step walkthrough of every deposit method, check out our deposit guide.

Is Polymarket safe?

Polymarket runs on the Polygon blockchain. Every trade is recorded on a public, verifiable ledger. The rules of each market are written upfront and executed automatically through smart contracts: code that runs exactly as programmed, with no human intervention.

Nobody can change the terms after you've traded. Nobody can refuse to pay you if you win. The system is transparent by design.

On the investment side, the platform has raised nearly $3 billion in total funding. ICE (owner of the NYSE) invested $2 billion in October 2025, and another $600 million in March 2026. These are not small, fly-by-night operations.

That said, prediction markets carry real financial risk. You can lose your entire stake on any trade. Never deposit more than you can afford to lose.

Is Polymarket legal?

It depends on where you are.

Polymarket is blocked in 33 countries, including some that might surprise you: the United States (for the international version), France, Germany, the United Kingdom, Italy, Belgium, Australia, Poland, Singapore, Thailand, and Taiwan, plus countries under international sanctions.

For US users specifically: Polymarket received CFTC approval in November 2025 to operate as a regulated US exchange. The US version works through brokerages and futures commission merchants, which is a different experience from the international platform. Several states (notably Nevada and New Jersey) still have restrictions on sports-related event contracts.

Ontario (Canada) is also blocked, while the rest of Canada is accessible.

If your country is not on the blocked list, you can access the international version freely. The platform checks your location automatically when you sign up.

Check the full list of geographic restrictions on Polymarket's official help center.

How is Polymarket different from sports betting?

This is the most common confusion. From the outside, it looks the same: you stake money on an outcome. But the mechanics are completely different.

On a bookmaker, you play against the house, and the house always wins over time. On Polymarket, there is no house. You trade against other participants, and the price reflects collective intelligence, not a bookie's margin.

How to get started on Polymarket

Getting started takes less than two minutes.

Step 1: Go to Polymarket and click Sign Up. You can register with your email (simplest option) or connect a crypto wallet.

Step 2: Deposit funds. Credit card, Apple Pay, Google Pay, or crypto transfer. You can start with as little as $5 or $10.

Step 3: Browse markets and find a topic you know about. Look at the price and ask yourself: do I think the real probability is higher or lower than what the market says?

Step 4: Buy your first shares. If you're right, you profit. If the market moves in your direction before the event resolves, you can sell early for a profit without waiting.

Want the full tutorial? Read our step-by-step guide to creating your account.

The story behind Polymarket

Shayne Coplan dropped out of New York University and founded Polymarket in March 2020, at the start of the COVID-19 pandemic. His goal: build a tool where people could get reliable, real-time answers to uncertain questions about the future, without relying on media spin or pundit opinions.

The platform runs on the Polygon blockchain, which keeps transaction costs near zero (fractions of a cent per trade) and settlement near-instant.

Polymarket's breakout moment came during the 2024 US presidential election. Over $3.7 billion was traded on the election outcome. The platform's odds showed Trump leading at 58% the day before the vote, while traditional polls called it a coin flip. The market was right.

In 2025, things moved fast. The FBI raided Coplan's apartment in connection with a DOJ investigation. The probe was dropped with no charges. Polymarket then acquired QCEX, a CFTC-licensed exchange, for $112 million, paving the way for a legal US return. ICE invested $2 billion at an $8 billion valuation. Bloomberg named Coplan the world's youngest self-made billionaire at 27.

By early 2026, prediction markets were topping $20 billion in monthly volume, with Polymarket leading the pack. MLB signed on as an exclusive partner. The platform is no longer a crypto experiment; it's a legitimate financial infrastructure.

Polymarket vs Kalshi: which should you use?

Kalshi is Polymarket's main competitor and has been CFTC-regulated since 2020. Here's a quick comparison.

If you're outside the US, Polymarket is the clear choice: more markets, more liquidity, more users. If you're a US resident, both platforms are now regulated and accessible, so it comes down to which markets interest you.

Common risks and concerns

Insider trading. In early 2026, Israeli authorities arrested two people for using classified information to bet on Polymarket markets related to military strikes on Iran. The platform has faced scrutiny over similar incidents. This is a real and evolving concern.

Market manipulation. During the 2024 election, a single French trader known as "Fredi9999" placed $28 million in Trump bets, sparking debate about whether large positions can distort prices. Polymarket's response: the market is open and anyone can take the other side.

Regulatory risk. While the trend is towards acceptance, some countries have recently moved to block Polymarket (Argentina's gambling regulators won a court ban in early 2026). Regulations can change.

Financial risk. You can lose your entire stake on any trade. There are no guarantees. Start small, learn the mechanics, and never trade with money you can't afford to lose.

Ready to try Polymarket?

The best way to understand Polymarket is to use it. Create an account, deposit a few dollars, find a market you know about, and buy your first share. You'll understand in five minutes what no article can fully explain.

Create your Polymarket account