Polymarket vs Smarkets, explained
Filed July 2026 · The Cent Signals desk
Polymarket and Smarkets both match people against each other rather than against a house, but they are different kinds of venue. They differ on three things up front: Polymarket is an on-chain prediction market that prices events from zero to one dollar and settles in USDC on Polygon, Smarkets is a UK-licensed betting exchange that quotes traditional odds and charges a low 2 percent commission focused on sports and racing, and the two are regulated in very different ways. Cent Signals is a free, independent desk that tracks Polymarket activity and explains how prediction markets price probability, not trading advice. This page reads as of 2026 and is documentation only, describing how each platform is structured rather than guiding any choice between them.
What these two platforms are
Polymarket is an on-chain prediction market. Each contract is priced between zero and one dollar, so the price reads as the market's implied probability of an outcome, and positions settle in USDC on the Polygon blockchain. Its catalogue spans politics, economics, crypto, weather, sports, and other event categories, and in December 2025 it launched a CFTC-regulated US exchange alongside its existing international on-chain market. Smarkets, founded in 2008 and live as an exchange from 2010, is a peer-to-peer betting exchange built around low commission, where users back a selection, hoping it happens, or lay it, offering a price on it not happening. It quotes traditional decimal odds, settles in fiat currency, and concentrates on sports and racing, with politics and current-affairs markets alongside and a separate fixed-odds sportsbook called SBK.
Cent Signals covers Polymarket specifically. It reads the public prices, volume, liquidity, and wallet activity on Polymarket and explains what those figures describe. If you are new to reading those numbers, the companion explainer on what Polymarket is and how it works walks through the basics first.
Feature comparison (as of 2026)
The table sets Polymarket and Smarkets side by side on the dimensions that actually differ. Each cell describes a current fact as of 2026. Fee schedules, regional access, and regulatory status all change over time, so treat each platform's own published terms as the authoritative source.
| Capability | Polymarket | Smarkets |
|---|---|---|
| Platform type | On-chain prediction market, peer-to-peer | Licensed betting exchange, peer-to-peer |
| Regulator and legal status (as of 2026) | On-chain market plus a CFTC-regulated US exchange from December 2025 | UK Gambling Commission and Malta Gaming Authority; CFTC applications pending |
| How prices are shown | Share price from zero to one dollar, reads as probability | Traditional decimal odds, back and lay |
| Main markets covered | Politics, economics, crypto, weather, sports, and more | Mostly sports and racing, plus politics and current affairs |
| Settlement asset | USDC on the Polygon network | Fiat currency, such as GBP or EUR |
| Trading and matching | Central limit order book, on-chain settlement | Back-and-lay order matching, in-play trading |
| Fees (as of 2026) | Category taker fee; makers pay none; US exchange flat taker fee | 2% base commission on net winnings; 1% Pro and 3% Select tiers |
| On-chain, publicly inspectable activity | Yes on Polygon | No; activity is private to the operator |
| Account and identity verification required | Partial (Wallet-based; fiat on-ramps may add checks) | Yes; a licensed account with identity checks |
| Available regions (as of 2026) | International, plus a US exchange after the 2025 launch | UK and parts of Europe; not currently the US |
Yes, Partial, and the short value cells above describe the current state of each platform as of 2026. They are not ratings and do not rank one platform above the other.
Prices as probability versus betting odds
The most visible difference is how each one expresses a price. On Polymarket, a YES share trades somewhere between zero and one dollar, and that price in cents reads straight off as an implied probability: a contract at 40 cents corresponds to roughly a 40 percent chance, and a matched pair of YES and NO shares is always backed by one dollar of USDC. Smarkets quotes decimal odds instead, where a price of 2.5 means a winning stake returns two and a half times itself, and the implied probability is one divided by the odds, before commission. The two are describing the same underlying idea, a market-derived probability, in different units. For how to read the Polymarket version, the explainer on reading implied probability on Polymarket works through several examples.
Coverage, settlement, and how trades are matched
The two platforms cover different ground. Smarkets concentrates on sports and racing, with real-time in-play trading during live events and a smaller book of politics and current-affairs markets. Polymarket carries a broad mix of politics, economics, crypto, weather, and sports, with many markets that stay open for weeks or months until an event resolves. Settlement differs too: Polymarket positions clear in USDC on Polygon and resolve through the UMA optimistic oracle, while Smarkets settles in fiat currency under its gambling licenses and resolves each market through its own operator. Both use a peer-to-peer matching model rather than a house taking the other side, which is why each can be read as a market rather than a fixed-odds book. Because Polymarket settles on a public chain, its trades and balances are inspectable on-chain, which is the property that lets Cent Signals read Polymarket activity at all.
Commission, fees, and the low-cost model
On costs, the structures look quite different. Smarkets built its identity on low commission: as of 2026 it charges a base 2 percent on net winnings, with no commission on losing positions, which is lower than the roughly 5 percent charged on the older Betfair Exchange, and unlike Betfair it does not levy an Expert Fee on the lifetime profits of winning accounts. Its highest-volume users can move to a reduced 1 percent Pro tier or a raised 3 percent Select tier, and new customers are often offered a limited period at 0 percent commission through a promo code. Polymarket takes a different route: as of 2026 it has used a taker fee that varies by category while maker orders that add liquidity pay no fee, with no platform deposit or withdrawal fee, and its US exchange applies a separate flat taker fee. Both sets of figures move over time, so the platforms' own current pages remain the authoritative reference. For the Polymarket side in detail, the Polymarket fees explainer breaks down the category taker fee and where it peaks, and the Polymarket vs Betfair comparison sets it against the other big exchange.
Regulation and the US prediction-market push
Regulation is where the two diverge most sharply, and where they are starting to overlap. Smarkets is licensed and regulated as a gambling operator, holding a UK Gambling Commission license and a Malta Gaming Authority license, and it runs in the United Kingdom and parts of Europe but not currently the United States. In March 2026, backed by the quantitative trading firm Susquehanna, Smarkets filed applications with the US Commodity Futures Trading Commission for designated contract market and designated clearing organization licenses, aiming to offer regulated prediction-market contracts in the US, with those applications pending as of this writing. Polymarket's status is more contested: its international on-chain market has historically geoblocked US and UK users, while its CFTC-regulated US exchange launched in December 2025 treats event contracts as financial derivatives rather than wagers, even as some state regulators and other jurisdictions argue the contracts resemble gambling. The guide on whether Polymarket is gambling covers that debate, and the Polymarket vs Kalshi comparison sets it against a CFTC-designated exchange.
How Cent Signals fits in
Cent Signals is not a platform and not a place to take a position. It is a free, independent reading desk for the public data Polymarket exposes, and it tracks Polymarket specifically rather than Smarkets. It indexes markets with real activity behind them and the wallets that transact large notional, then explains what the prices and positions describe. You can see that on the markets worth a second look index, or on a tracked wallet such as this Polymarket trader and the positions it currently holds. Those pages report observations of public data, never instructions. For how the figures are collected, see the methodology page.
Frequently asked questions
What is the difference between Polymarket and Smarkets?
Polymarket is an on-chain prediction market that prices each contract between zero and one dollar, so the price reads directly as the market's implied probability, and it settles in USDC on the Polygon network across politics, economics, crypto, sports, and other event categories. Smarkets is a licensed peer-to-peer betting exchange, founded in 2008, where users back and lay selections at traditional decimal odds, concentrated on sports and racing with politics and current affairs alongside, settling in fiat currency. Both match users against each other rather than against a house, but they differ on how prices are expressed, what they cover, how they are regulated, and how they charge, as of 2026.
How much does Smarkets charge compared with Polymarket?
As of 2026, Smarkets charges a base commission of 2 percent on net winnings, lower than the Betfair Exchange's roughly 5 percent, with no commission on losing positions; its highest-volume accounts can move to a reduced 1 percent Pro tier or a raised 3 percent Select tier, and new customers are often offered a limited period at 0 percent commission through a promo code. Polymarket uses a taker fee that varies by category while maker orders that add liquidity pay no fee, with no platform deposit or withdrawal fee, and its US exchange applies a separate flat taker fee. Both schedules change over time, so each platform's own current terms are the authoritative source.
Is Smarkets a prediction market or a betting exchange?
Smarkets is a betting exchange first. It launched in 2010 as a low-commission peer-to-peer exchange for sports and racing, later adding politics and current-affairs markets, and it also runs a separate fixed-odds sportsbook called SBK. In March 2026 Smarkets filed applications with the US Commodity Futures Trading Commission for designated contract market and designated clearing organization licenses, backed by the trading firm Susquehanna, to offer US prediction-market contracts, so its exchange model and a regulated prediction-market product are converging. Polymarket, by contrast, was built as a prediction market from the start, pricing every contract as a probability.
Where are Polymarket and Smarkets available?
As of 2026, Smarkets operates under a UK Gambling Commission license and a Malta Gaming Authority license, serving the United Kingdom and parts of Europe, and it is not currently a live real-money option in the United States while its CFTC applications are pending. Polymarket runs an international on-chain market that has historically geoblocked US and UK users, alongside a CFTC-regulated US exchange that launched in December 2025. Each platform restricts access by jurisdiction, so the authoritative source for any region is the platform's own terms.
Can you see Smarkets activity on-chain the way you can with Polymarket?
No. Smarkets is a centralized, licensed operator, so its order books and account balances are private to the company and are not published on a public blockchain. Polymarket settles in USDC on Polygon, which means its markets, trades, and wallet positions are inspectable on-chain by anyone. That on-chain visibility is the property that lets Cent Signals read Polymarket prices, volume, liquidity, and large-wallet activity at all; there is no equivalent public feed for a private exchange like Smarkets.
Is Cent Signals affiliated with Polymarket or Smarkets?
No. Cent Signals is an independent editorial desk. It is not operated by, funded by, or partnered with either platform, and it tracks Polymarket data specifically. It reads public Polymarket prices, volume, liquidity, and wallet activity and explains how prediction markets price probability. It does not accept orders, custody funds, route trades, or connect wallets, and any outbound links are reference only.
Related reading
This comparison is editorial reference about publicly documented features of a prediction market and a betting exchange as of 2026. It is not financial advice, a tip, or a recommendation to use either platform or take any position, and Cent Signals does not facilitate trades. For how the Polymarket figures on this site are collected, see the methodology page.