Kalshi vs Polymarket: We Compared Both Prediction Markets Apps

The Kalshi vs Polymarket debate is always a hot topic among prediction market users. Both platforms have their shortcomings and benefits, but irrespective of whether you use either prediction market, you can trade on several contracts and events.

We have compiled this detailed comparison between the two popular prediction markets, evaluating the standout features and determining which platform is the best choice for traders. Depending on what you want from a prediction market, both Kalshi and Polymarket are good options, with several future events and trading options, including elections, culture and sports event contracts.

Kalshi Vs Polymarket

Polymarket Vs Kalshi: Two Popular Prediction Market Platforms

Two of the bigger prediction markets are Kalshi and Polymarket. There is always a debate on whether Polymarket or Kalshi is better. However, since both prediction markets provide similar features, the trading experience is similar.

Kalshi and Polymarket operate similarly to most prediction markets, allowing you to buy and sell shares on specific contracts. For example, if the Boston Celtics are trading at $0.75 to make the NBA Finals, it means that traders think that there is a 75% chance of the Celtics qualifying for the NBA Finals. If you believe that the Celtics will reach the NBA Finals, you can buy a ‘Yes’ contract for that outcome at $0.75. If you buy a ‘Yes’ position for $100, you will receive 133.33 contracts ($100/0.75). If your prediction is correct and the Celtics make the NBA Finals, you will win $133.33 ($33.33 in profit). However, if the Celtics do not reach the NBA Finals, you lose your initial investment.

Please note that since every trader is different, some may prefer the easy access of Kalshi, while others may prefer the more diverse sports prediction contracts offered by Polymarket. We have unpacked each popular prediction market below, followed by a comparison of Kalshi vs Polymarket to determine which platform provides the overall better trading experience.

An Overview of Kalshi

As mentioned in our Kalshi review, the platform is a prediction market widely regarded as one of the best in the industry. Kalshi is licensed and regulated to operate in most US states, and has the relevant documentation from the Commodity Futures Trading Commission (CFTC). The CFTC regulates the US derivatives markets and has legalized all future events trades at Kalshi.

You must be 18 years or older to use Kalshi and reside in a US state where the prediction market is available. At the time of writing this Kalshi vs Polymarket comparison guide, Kalshi is available in more than 40 US states. All Kalshi users can buy and sell shares on several future events with categories including sports, culture, cryptocurrency, climate, economics, finance, tech and science, health, and more.

Please note that when trading on Kalshi, you can close your positions early, but this is subject to the contract volume and liquidity. The more liquid the contract, the easier it is to sell your position and either take out your profits or minimize your losses.

An Overview of Polymarket

Unlike Kalshi, the legal landscape of Polymarket is more complex. Polymarket was banned in the US and lacked the necessary documentation to be regulated by the CFTC. However, Polymarket recently acquired a CFTC-licensed exchange, QCEX, and has relaunched.

You must also be 18 years or older to use Polymarket and at present there is no official list of restricted or unrestricted states (we’ll update our Polymarket review once it’s available). Users might have slightly less choice here, but can still purchase contracts on a wide range of prediction markets including politics, finance, sports, culture, science, tech, and global affairs.

Similar to Kalshi, when using the Polymarket platform, all trades are binary options, and you can purchase or sell contracts. Winning contracts are settled at $1, while losing contracts are settled at $0.

Kalshi Vs Polymarket Comparison

As we shared, the trading experience is similar at both Kalshi and Polymarket. However, two areas that we would like to elaborate on are the volume and arbitrage opportunities.

Kalshi vs Polymarket volume trading depends on the depth or liquidity of the contracts. Remember, since prediction markets do not provide the contracts, supply and demand determine whether you can buy or sell a contract. If a futures event does not have demand, there will not be supply, thus the volume and liquidity are low, and you cannot effectively purchase or sell contracts and maximise your trades for that contract.

For example, a contract on whether Apple will release AirTag 2 in 2025 will have much less volume compared to a contract on the highest-grossing movie in 2025. Regardless of whether you are using Kalshi or Polymarket, you must factor in the contract volume and liquidity before purchasing or selling shares.

The table below recaps the Kalshi vs Polymarket comparisons, highlighting the main features at each prediction market:

Conclusion – Kalshi Vs Polymarket Differences Are Minimal

As you can see from our Kalshi vs Polymarket comparison guide, both prediction markets share similar features and trading options. Kalshi received regulatory approval back in November 2020 so has more experience serving its US users, while Polymarket only received regulatory approval in November 2025 – though has still served globally since 2020. On the other hand, Polymarket doesn’t charge fees on trading, whereas Kalshi does.

In the end it’s a close call, so your best bet is to sign up to both and see if you have a preference.

Kalshi Vs Polymarket FAQs

• 🤔 Who is Kalshi and Polymarket?
  Platforms like Kalshi and Polymarket are prediction markets, which allow you to trade on the outcome of future events. All trades are in the form of binary outcomes, and you are either buying or selling Yes or No contracts.
• ❓ Is Kalshi or Polymarket better?
  Both Kalshi and Polymarket are excellent prediction markets. There is no one better platform than the other, and it depends on what each user requires when joining a prediction market.
• ⌛ Is Kalshi and Polymarket both available in the US?
  Both prediction market sites are available in the US.