Polymarket review (2026)

Overview

Polymarket launched in 2020 and quickly became the most active prediction market anywhere, drawing global attention for the sheer depth of its political and world-event markets. It runs on crypto: contracts are bought and settled in USDC, a dollar-pegged stablecoin, on the Polygon network. That design is the source of both its strengths and its trade-offs.

After blocking US access in 2022 amid regulatory pressure, Polymarket engineered a return for American traders in late 2025 through a licensed, compliant structure, and rolled out a dedicated US app. By that point monthly volumes were running into the billions. For depth and breadth on the biggest questions of the day, no rival matches it.

Self-custody and how it works

Because Polymarket settles on-chain, you connect a crypto wallet and your funds remain under your control rather than sitting in a platform account. To experienced crypto users this is a feature — there is no intermediary holding your balance. To everyone else it is the main hurdle: you need to set up a wallet, hold some USDC, and understand the basics of moving funds on a blockchain. If that sounds unfamiliar, a dollar-funded exchange like Kalshi will be a gentler start.

Markets and liquidity

Polymarket’s defining advantage is depth. On flagship political and global-event markets, the order books are the deepest in the category, which means tighter spreads and the ability to trade size without moving the price against yourself. Coverage spans:

• Politics & world events — elections, geopolitics and policy, often the most-traded markets on the platform.
• Crypto — price levels, ETF and protocol outcomes, a natural fit for its user base.
• Culture, sports and current affairs — a broad and fast-moving rotating set.

Because it is global and crypto-based, Polymarket also lists markets that US dollar-only brokerages do not, which is part of why many traders keep an account here alongside a domestic one.

Fees and costs

Polymarket has historically kept direct trading fees low, with the practical costs being blockchain network fees and the spread on a given market. As always, deep markets cost less to trade than thin ones; our profit calculator and odds converter help you turn any price into real numbers before committing.

Pros and cons

Who it’s for

Polymarket is the platform of choice for traders who want maximum depth on major events and are comfortable operating in crypto. If you are completely new, start dollar-funded and graduate here once the mechanics click — the Kalshi vs Polymarket comparison lays out the differences side by side.

Verdict

Polymarket is the heavyweight of prediction markets: the deepest liquidity, the broadest event coverage, and a self-custody model that crypto users value. It loses a little ground to Kalshi purely on approachability — the wallet-and-stablecoin on-ramp is a real barrier for newcomers — but for anyone past that point, it is an exceptional venue and an essential second account for serious traders.

Visit Polymarket →

Link to Polymarket’s official site. Availability, US access and features vary by location and change over time; confirm current details on Polymarket before depositing. 18+. Trading involves risk of loss.

How Polymarket compares

See how Polymarket stacks up head-to-head against the other leading platforms:

• Polymarket vs FanDuel Predicts — how it stacks up against event contracts from a major sportsbook brand, ideal for sports-first traders.
• Polymarket vs Robinhood — how it stacks up against the cheapest, lowest-friction way in for existing Robinhood users.
• Polymarket vs DraftKings — how it stacks up against DraftKings' sports-led event-contract exchange.
• Polymarket vs Crypto.com — how it stacks up against prediction markets inside the Crypto.com ecosystem.
• Polymarket vs Coinbase — how it stacks up against first-party prediction markets for crypto-native Coinbase users.
• Polymarket vs Novig — how it stacks up against a no-vig peer-to-peer sports exchange.
• Polymarket vs PrizePicks — how it stacks up against event contracts inside the PrizePicks app, powered by Kalshi.
• Polymarket vs Underdog — how it stacks up against parlay-style sports prediction entries from Underdog.
• Polymarket vs Fanatics — how it stacks up against sports-led event contracts from the Fanatics brand.
• Polymarket vs OG — how it stacks up against a sportsbook-style on-ramp to prediction trading.

Frequently asked questions

Is Polymarket legal in the US?

Polymarket blocked US users in 2022, then returned to the US in late 2025 through a licensed, compliant structure and a dedicated US app. Availability still depends on that evolving framework, so confirm current access before depositing.

Do you need crypto to use Polymarket?

Yes. Polymarket settles in USDC, a dollar-pegged stablecoin, on a blockchain, so you connect a crypto wallet and hold your own funds. If that's unfamiliar, a dollar-funded exchange like Kalshi is an easier start.

Is Polymarket safe?

Polymarket uses self-custody, meaning your funds stay in your own wallet rather than with the platform. Experienced crypto users see this as a benefit; it also means you're responsible for your wallet's security.

Why is Polymarket so popular?

It's the largest prediction market in the world by volume, with the deepest liquidity and the broadest coverage of political and global events — including markets US dollar-only platforms don't list.