Prediction markets let traders take positions on real-world outcomes such as presidential elections, sports, and economic events. In 2026, the main difference between platforms is not just price. It is also how they structure contracts, how they handle access, and how clearly they explain fees and settlement.
This comparison focuses on Plus500, Polymarket, and Robinhood. Plus500 and Robinhood offer yes/no event contracts, while Polymarket uses outcome shares priced by market demand.
| Broker | Platforms | Fees | Regulation | Tradable Assets | Actions |
|---|---|---|---|---|---|
| Plus500 web, Plus500 app | $0.01 commission + $0.01 exchange fee per contract | NFA, CFTC (via Kalshi) | politics, event markets, crypto, climate *available by state | ||
Polymarket
 | Own Platform Only | Most markets fee-free; some short-term crypto markets have taker fees | CFTC | Politics, sports, entertainment, event markets |
More Info
|
Robinhood
 | Own Platform Only | $0.01 commission per contract, per side, plus exchange fees | CFTC | Sports, politics, economics, other event categories |
More Info
|
The first thing to check is product structure. Plus500 and Robinhood are closer to a broker-style exchange-traded contract model. Polymarket is closer to a prediction market that operates like an exchange.
The second is total cost. Small per-contract fees still matter, especially for active traders. Plus500 and Robinhood both publish per-contract charges, while Polymarket says most markets are fee-free.
The third is regulatory clarity and availability. Plus500 and Robinhood tie their offerings to US-regulated derivative infrastructure. Polymarket puts more emphasis on geographic restrictions and platform availability.
The fourth is market range and liquidity. A platform is more useful when traders can quickly see active markets, live pricing, and how contracts are being priced. That is especially important in prediction markets, where activity can vary widely by event.
Plus500 offers prediction markets through yes/no event contracts. Traders take a position on whether a specific outcome will happen, and contracts settle at $1 if correct and $0 if incorrect. Plus500US Financial Services LLC is a Futures Commission Merchant registered with the CFTC and a member of the NFA, which gives them a clearer US-regulated framework. Plus500 also highlights event-driven markets such as sports and political elections. From a liquidity perspective, they are better judged by the number of live contracts and visible event pricing rather than traditional spread analysis, since this type of asset is an event-contract product rather than a standard CFD or forex setup.
Plus500 states that it charges a $0.01 commission per contract, while the exchange adds an additional $0.01 fee per contract. Contract prices are shown in cents and reflect the implied probability of the outcome. That makes the pricing straightforward, but traders still need to factor in both charges when comparing total cost.
Simple yes/no contract structure
Clear fee model
The platform gives users access to Kalshi’s CFTC-regulated event contracts, with Plus500 managing clearing via its membership in Kalshi Klear LLC
Easy-to-understand payout setup
Not fee-free
Polymarket is an exchange-style prediction market where users buy and sell shares on future outcomes. The platform explains that prices reflect the market’s current probability of an event, and winning shares settle at $1. Official help materials describe markets tied to sports, political elections, and entertainment awards, while pricing is based on the midpoint of the bid-ask spread in the order book. On regulation and availability, Polymarket’s official documentation focuses mainly on geographic restrictions and states that access is blocked in certain countries and regions, including the United States.
Polymarket states that most markets have no trading fees. It also says there are no fees to deposit or withdraw USDC from Polymarket itself, although third-party services such as Coinbase or MoonPay may still charge their own fees. The main exception is 15-minute crypto markets, where taker fees apply to support the maker rebates programme.
Most markets are fee-free
Clear market-based pricing through the order book
Strong variety across politics, sports, and other event themes
Not available in some countries and regions, including the U.S.
Robinhood offers prediction markets through event contracts inside its platform. Users can access them through the Prediction Markets section, and Robinhood says these contracts are offered through Robinhood Derivatives via partner exchanges regulated by the CFTC. Its official hub highlights markets across sports, politics, and economics, and current listings also extend into areas such as crypto and culture. From a liquidity perspective, the product is best judged by the number of live contracts and how actively markets are listed inside the app, rather than by traditional spread-based broker metrics.
Robinhood’s official fee schedule states a $0.01 commission per contract, per side, for event contracts. It also notes that exchange fees apply in addition to that commission, so the headline price is not the full trading cost.
Clear per-contract commission structure
Access to mainstream event categories such as sports, politics, and economics
Offered through Robinhood Derivatives with CFTC-regulated exchange partners
Not fee-free once exchange fees are included
Availability depends on product eligibility and listed contract access
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