Polymarket US 2026 Review: Trade on sports, politics, and more

For most of the last decade, the honest answer to "where do Americans trade prediction markets?" was a shrug and a workaround. Polymarket built the deepest, most-quoted event market in the world, and Americans mostly watched it from the outside. That is over. Polymarket US is live, federally regulated, and open for business on sports, politics, economics, weather, and a long list of everything else.

Polymarket calls itself "The World's Largest Prediction Market," and the US version is the fully licensed American front door to it. This review covers what Polymarket US actually is, how you get an account, what you can trade, how the pricing and fees work, and why the institutional money showed up before most bettors did.

For the wider case on why market prices beat opinions, here is Polymarket founder and CEO Shayne Coplan on what odds actually tell us:

What Polymarket US is

Polymarket US is a federally regulated event contract exchange. It runs on QCX LLC, a CFTC-designated contract market, and QC Clearing LLC, a registered derivatives clearing organization. Polymarket bought both in July 2025 in a deal reported at $112 million, and that purchase is the whole story: rather than lobbying for a new category, Polymarket bought the licenses that already existed and rebuilt its product inside them.

The practical difference from a sportsbook is that a prediction market is overseen by one national regulator instead of fifty state gaming boards. You are trading a contract that settles at $1 if the event happens and $0 if it does not, against other traders, on an order book. Nobody sets a line for you to beat.

Getting an account

The US app came off its waitlist on May 12, 2026, ending roughly six months of invite-only access, and iOS has been the main path in since. Android access has been rolling out behind its own queue, so the fastest route today is still the iPhone app.

Onboarding is a real financial onboarding, not a sportsbook signup:

• You must be 18 or older, which is younger than the 21 most state-licensed sportsbooks require.
• Full KYC: a government-issued photo ID, your Social Security number, proof of address, and a live selfie.
• Funding is in US dollars. Bank transfer, debit card, and wire are all supported, and the platform does not charge its own deposit or withdrawal fee.

Availability covers most of the country, with a small number of states carved out and the list still moving as state-versus-federal litigation plays out. The signup flow in the app is the only answer that is current for your address, so check there rather than trusting any list, including this one.

What you can trade

The breadth is the point. A single account covers:

• Sports: NFL, NBA, MLB, NHL, college football and basketball, golf, tennis, UFC, and international soccer, on game outcomes, series, and season-long futures.
• Politics and elections: the category that made Polymarket famous, and still the one cable news puts on screen.
• Economics: Fed decisions, CPI prints, jobs numbers.
• Culture, tech, weather, and crypto: awards, product launches, temperature and storm markets, price thresholds.

That mix is something no sportsbook can offer you, because a sportsbook is licensed to take sports bets. A contract on a Fed cut and a contract on a Sunday night game live in the same wallet here, priced by the same order book mechanics.

How the pricing works

Every market is a pair of contracts, YES and NO, trading between $0 and $1. A price of 62 cents means the market is saying 62 percent. You can buy either side, and you can sell before the event resolves, which is the part most people coming from a sportsbook underrate. A ticket is not a ticket you hold to the end. It is a position you can exit at the current price when news moves, when your team goes up two scores, or when you simply want the risk off.

There is also no vig baked into the number you see. At a -110 sportsbook the house keeps roughly four and a half cents on every hundred dollars matched, on both sides, before a play happens. On an order book, the two sides of a matched trade sum to a dollar. The cost of trading is charged as an explicit fee instead of hidden in the price, which means you can actually measure it.

The fee math

Polymarket's fee model is unusually trader-friendly, and worth understanding because it is not a flat percentage.

• Makers are not charged. If you post a resting order and someone else fills it, you pay nothing.
• Takers pay a fee that scales with uncertainty. The charge is proportional to price times one minus price, so it is at its largest on a genuine coin flip and falls toward nothing on a heavy favorite or a longshot. Trade a 92-cent favorite and the fee is a rounding error.
• Several categories are fee-free entirely, including geopolitical and world event markets.
• Fees fund maker rebates, redistributed daily to the traders posting the orders that keep books deep and spreads tight. The people supplying liquidity get paid for it.

Rates get tuned as the exchange grows, so check the current schedule in the app before you size up. The structure is the durable part: no vig, no fee on the side that provides liquidity, and the smallest charges exactly where prices are most lopsided.

The institutions arrived first

The clearest signal that Polymarket US is a serious venue is who is standing behind it.

ICE, the owner of the New York Stock Exchange, committed up to $2 billion in October 2025 at a valuation of roughly $8 billion before the investment, then added another $600 million in March 2026. ICE also became a global distributor of Polymarket's event data, which means the same prices you are trading get piped to institutional desks as sentiment indicators. That is not a marketing partnership. That is Wall Street's plumbing treating these markets as a data source.

Sports followed. In March 2026, Major League Baseball named Polymarket its exclusive prediction market exchange partner in a multi-year deal, with access to official league data through Sportradar, use of MLB marks, and a jointly built integrity framework that came with a memorandum of understanding between the league and the CFTC. Polymarket added the New York Yankees as a club partner for the rest of the 2026 season, the first individual MLB team to sign with a prediction market. On the ice, Polymarket has been an official NHL prediction market partner since October 2025, and it holds partnerships with MLS and the UFC.

Leagues that spent twenty years keeping betting at arm's length are now naming a prediction market as an official partner and writing the integrity rules alongside the regulator. That is a legitimacy curve that took sportsbooks a decade.

Where Polymarket US fits in the OpenMarkets ecosystem

OpenMarkets maps prices across every prediction market and peer-to-peer venue, and Polymarket sits at the center of that map. Its books are usually the deepest, its politics and economics coverage has no real equivalent, and its prices are the ones the rest of the market gets quoted against.

If you care about price, it belongs in your rotation next to the other venues we cover: our Kalshi review for the other major regulated exchange, our ProphetX review for the sports-native exchange angle, and sportsbook versus prediction market for the structural comparison. For the global platform and how it differs from the US exchange, see our full Polymarket review.

Ready to trade on Polymarket US? Open your Polymarket account and check current markets and availability for your state.

Honest considerations

A useful review names the friction too.

• Onboarding takes longer than a sportsbook. A regulated exchange has to verify you properly, so budget a few minutes for ID, Social Security number, and address documents rather than the sixty-second signup you are used to.
• Access is still expanding. iOS came first, Android has been arriving behind a queue, and a handful of states sit outside the map while courts sort out federal preemption. Check the app for your address.
• Order books have a learning curve. Cents-as-probability, resting orders, and selling out of a position early take a beat to click. Most people find that once it clicks, fixed odds feel like a worse deal.
• Depth varies by market. Marquee sports and headline politics are deep. A niche contract can be thin, so look at the book before you size a position rather than only at the top price.

Who Polymarket US is for

• Bettors who shop price. No vig in the number, and a fee that is largest only where the market is a true coin flip.
• Anyone who wants out early. Selling a position mid-event is the feature sportsbook cash-out pretends to be.
• People with an opinion beyond sports. Elections, Fed decisions, awards, and weather in the same account.
• Traders who post liquidity. Zero maker fees plus daily rebates make market-making genuinely worth doing at retail size.
• Anyone who has been limited elsewhere. There is no risk desk grading your account, because there is no house on the other side of your trade.

Frequently asked questions

Is Polymarket US legal?

Yes. Polymarket US operates through QCX LLC, a CFTC-designated contract market, and QC Clearing LLC, a registered derivatives clearing organization. It is regulated federally by the Commodity Futures Trading Commission rather than licensed state by state. A small number of states are carved out while state-versus-federal cases proceed, so confirm availability in the app for your address.

What is the difference between Polymarket US and the global Polymarket?

The global platform settles in USDC on-chain and serves non-US traders. Polymarket US is the CFTC-regulated exchange for American traders, funded and settled in US dollars with full KYC. Same brand and much of the same market coverage, different regulatory and funding rails.

How old do you have to be to use Polymarket US?

18 and up, which is three years younger than the 21 required at most state-licensed sportsbooks.

What does it cost to trade on Polymarket US?

Makers pay nothing. Takers pay a fee that scales with price times one minus price, so it peaks on a 50/50 market and shrinks toward zero on lopsided ones. Several categories are fee-free, and collected fees are redistributed daily as maker rebates. Check the current schedule in the app, since rates are periodically adjusted.

Can you trade sports on Polymarket US?

Yes. NFL, NBA, MLB, NHL, college football and basketball, golf, tennis, UFC, and soccer are all covered, on game outcomes, series prices, and season-long futures. Polymarket is also MLB's exclusive prediction market exchange partner and an official NHL, MLS, and UFC partner.

Can you sell a position before the event ends?

Yes. Contracts trade continuously until the market resolves, so you can exit at the current market price at any point instead of holding a ticket to the final whistle.

How do I deposit on Polymarket US?

In US dollars, by bank transfer, debit card, or wire. Polymarket does not charge its own deposit or withdrawal fee, though your bank or card issuer may.

Bottom line

Polymarket spent years as the market everyone quoted and few Americans could use. In 2026 that inverted. The licenses are real, the app is open, the money behind it comes from the company that owns the New York Stock Exchange, and the biggest league in American sports signed an exclusive deal to work alongside it.

What you get as a trader is the good version of all that: one account covering sports and politics and economics, prices set by an order book instead of a risk desk, no vig in the number, no fee for providing liquidity, and the ability to change your mind and sell. If you have been waiting for prediction markets to grow up in the United States, the waiting part is finished.

Ready to trade your first market on Polymarket?

Put this into practice. Polymarket is the world’s largest prediction market platform enabling users to trade on the outcomes of future events across diverse topics. Polymarket lets you trade real-money contracts on real-world outcomes, and getting set up takes only a few minutes.

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Disclosure: OpenMarkets may earn a referral commission if you sign up through this link, at no extra cost to you. Event trading carries risk — only trade what you can afford to lose.