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The Hidden Costs of Event Trading Explained
The Hidden Costs of Event Trading Explained
By
James Thompson,
Last Updated on 24.09.2026
It is easy to miss the true costs of event trading when you are not looking at platform fees. Due to the peer-to-peer nature, you may end up focusing on your successes or failures because those can seem more significant.
The truth is that whatever platform you are trading on is not available to you for free. The owners always have a set fee that you have to cover as you continue using their services and features. On this page, we're going to take a look at all of the possible payments that you have been making without realizing it.
Enjoy Event Trading at these Top Prediction Market Sites
We recommend
- Buy Yes or No contracts for sports events
- Live graph allows you to track prices
- There are moneylines, totals, spreads, and more
Deposit Methods
Apps
License
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading involves high risk and may result in loss of your entire investment. See polymarket.us/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated derivatives exchange and clearing organization.
Hot Offer
- Hundreds of daily markets for 13+ sports
- Covers game winners, team performance, and outcomes
- Prices change based on sport-related events
Deposit Methods
Withdrawal
Apps
License
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at http://kalshi.com/tc/55. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
Hot Offer
- Trade on live and futures sports events
- Covers 15 sports and major competitions
- Markets include team and player predictions, plus tournament winners
Deposit Methods
Withdrawal
Apps
License
4.
- Major sports available
- Live trading supported
- Popular markets, including spread, winner, and totals
Deposit Methods
Withdrawal
Apps
License
5.
- Coverage for popular US pro leagues.
- Dedicated prediction sections for major events like the soccer World Cup.
- A mix of outright winner and futures sport predictions.
Deposit Methods
Withdrawal
Apps
License
6.
- Futures sports prediction market
- Prediction Parlays
- Combo feature
Deposit Methods
Apps
License
Trading involves risk, including total loss on positions. Trading decisions and their consequences are your sole responsibility. Nothing on underdogexchange.com constitutes a recommendation, solicitation, or offer to buy or sell any financial instrument. UDX is subject to CFTC regulatory oversight. Promotion issued by affiliate.
- Moneylines, spreads, props, futures, and parlays
- Major U.S. sports and other competitions
- Ability to buy and sell positions
Deposit Methods
Withdrawal
Apps
Restrictions & requirements apply. Not available in all states. 21+. Event contract trading involves risk & is not appropriate for all. Consider if it's appropriate for you in light of financial circumstances. See novig.com/terms for information.
8.
- Offers a wide variety of contract questions
- Easy to understand contract question
- Covers major sporting leagues
Best Alternative
Open Polymarket
Deposit Methods
Withdrawal
Apps
License
9.
Draftkings Predict Review
New DraftKings Customers: Trade $5+ Get $200 in Bonuses + 3 Months NBA League Pass On Us!
USA Players Welcome
- Trade predictions on tennis, soccer, Mixed Martial Arts, Golf, Formula One, and Sailing.
- It provides a Combos feature where you can link several sports outcomes into one event contract.
- Prediction markets for major sports leagues like the NBA and the NFL
Best Alternative
Open Polymarket
Deposit Methods
Withdrawal
Apps
License
Event Contract Trading is offered by DraftKings Predictions, a CFTC-registered Futures Commission Merchant and NFA member. Trading involves substantial risk of loss and is not suitable for everyone. Market availability varies. Eligibility restrictions apply. 1 per new DraftKings customer. $5+ first-time trade req. Max. $200 issued as non-withdrawable Predictions Dollars that expire in 1 year. Reward issued as $50 in Predictions Dollars every 7 days via click-to-claim for 21 days. Click-to-claims expire 7 days after issuance. 7 days = 168hrs. Terms: Promotions | DraftKings Predictions . Get 1 promo code to redeem a 3-month NBA League Pass subscription, complimentary of DraftKings. Subscription auto-renews monthly at then-current price (currently $16.99/mo); cancel anytime. Terms, restrictions, and eligibility requirements apply. Redeem League Pass by 12/19/26 at 11:59 PM ET. Addt’l terms: League Pass Terms of Use . Ends 11/29/26 at 11:59 PM ET. Sponsored by DK.
10.
- Provides a variety of sports prediction markets
- The operator offers parlay-style trading
- Eligible sports prediction markets feature moneyline, spreads, totals, and props
Best Alternative
Open Polymarket
Deposit Methods
Apps
License
18+ If you or someone you know has a gambling problem, call 1-800-GAMBLER Prediction is an event contract that is a derivatives product offered by Crypto.com: Buy, Sell & Trade Crypto with a Trusted App | Derivatives North America (CDNA), a CFTC-regulated exchange through OG technology. Trading on CDNA involves risk and may not be appropriate for all. By trading you risk losing your cost to enter any transaction, including fees. You should carefully consider whether trading on CDNA is appropriate for you in light of your investment experience and financial resources. Any trading decisions you make are solely your responsibility and at your own risk. Terms apply. Trading involves risk of loss. Bonus credits cannot be withdrawn immediately.
11.
- Sports prediction contracts for soccer, football and basketball
- Can close prediction positions early
- High market volumes and liquidity
Best Alternative
Open Polymarket
Deposit Methods
License
12.
- Coverage of all major football tournaments
- Support for esport markets
- Also covers niche options like racing
Best Alternative
Open Polymarket
Deposit Methods
Apps
License
Table of Contents
- Understanding the cost of event trading
- Why it is easy to miss these fees
- Prediction market platforms with transparent trading costs
- Event trading fees: pros and cons
- Types of prediction markets you can trade on
- Learn More About Prediction Markets Through Our Detailed Guides
- Final thoughts on the real cost of event trading
- FAQs on the real cost of event trading
Understanding the cost of event trading
If you want to learn how to read market prices, we have a guide for that. Here, what you’ll be learning to read is what an actual event trade costs in terms of facilitation fees. These fees are of three types: the initial trade contract purchasing fee, the fee on payout, and the fee for selling trade contracts.
💰 Trade Contract Purchasing Fee
This is the fee that you pay when you purchase a contract for a yes or no answer. This can be a 1% charge, or even a fixed price of $1.
💸 Selling Fee
Because market prices are unpredictable, if they eventually change in your favor and you decide to sell, you will also have to pay a fee for that. This can be pegged at two cents to around 0.50%.
📈 Fees on Payout
When you choose to hold your trade contract and eventually get a prediction right, your payout is usually $1 per contract. The platform would then charge you a service fee on your profit at a fixed percentage.
Why it is easy to miss these fees
You can easily miss these small fees because a lot of people treat event trading the same as they treat online sports betting. When you sign up with a sports betting site and bet on the outcome of a game, for example, losing that prediction means that the platform gets to keep the amount that you bet. This is not the case with prediction market platforms. Here, you are dealing directly with somebody else, so if you do a trade on crypto prediction markets and things don't go your way, nothing goes to the platform. Even if your prediction is right, the platform still gets nothing except for the fees that they charge you. You can consider it the cost of running the platform or keeping the service functional so that you can always access it whenever you need to.
There are different prediction market platforms these days, and you might find tiny variations in the fees that they charge. You can take your time to look for a specific market and do a comparison before you settle on where you would like to register.
Polymarket Review
Deposit $10 get a $25 Trading Bonus
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading involves high risk and may result in loss of your entire investment. See polymarket.us/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated derivatives exchange and clearing organization.
Kalshi Review
Trade $25 Get $55
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at http://kalshi.com/tc/55. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
Prediction market platforms with transparent trading costs
Not every prediction market handles trading costs in exactly the same way. While fees are generally low across the industry, platforms differ in their payment methods, market coverage, liquidity, and overall trading experience. Choosing the right site isn't just about finding the lowest fee - it's also about using a platform with active markets, reliable execution, and clear pricing.
Below are two popular prediction market platforms that offer straightforward trading experiences:
Kalshi - Best regulated prediction market for transparent trading
Kalshi: Pros & Cons
- The prediction market is easy to understand
- Prices are updated in real time
- Multiple reward programs
- No instant customer service replies
Kalshi has built its reputation around being the first federally regulated prediction market in the United States, operating under CFTC oversight. The platform offers event contracts across sports, politics, economics, weather, finance, and more, with clear pricing and settlement rules that make it easy to understand exactly what you're paying when you place a trade.
Funding your account is flexible thanks to support for debit cards, Apple Pay, bank transfers, wire transfers, and several cryptocurrencies, including USDC, Bitcoin, Solana, XRP, and RLUSD. Kalshi also rewards active users through referral bonuses, liquidity incentive programs, and trading competitions. Combined with highly rated mobile apps on both iOS and Android, it remains one of the strongest options for anyone looking for a transparent event trading platform.
Crypto.com - Best for crypto users exploring prediction markets
Crypto.com: Pros and Cons
- Dedicated mobile app
- Several categories for prediction trading
- Fiat and crypto options
- No prediction market welcome bonus
Crypto.com combines cryptocurrency trading with prediction markets, making it a good option if you already manage digital assets in one place. Alongside prediction markets, you'll find access to hundreds of cryptocurrencies, recurring purchases, and a range of trading tools through one of the industry's most established platforms.
The platform supports Visa, Mastercard, Apple Pay, Google Pay, bank transfers, and numerous cryptocurrencies for funding your account. New users in eligible regions can complete a Welcome Mission to earn CRO rewards, while existing customers benefit from loyalty programs, trading competitions, and Visa card promotions. With strong regulatory coverage across multiple jurisdictions and highly rated mobile apps, Crypto.com offers a well-rounded experience for users who want prediction markets alongside a broader crypto ecosystem.
Event trading fees: pros and cons
The good thing with prediction trading platforms is that they are very transparent about their fees and what you get after deductions. This makes it easy for you to decide whether or not a particular platform is suitable for you early enough. These are some of the pros and cons that you would need to remember if this is your first time or before your next trade:
Pros and Cons
- Fees are usually a tiny percentage
- The value of final payouts is always shown upfront
- The fee structure is easy to understand
- Liquidity can complicate fees
Types of prediction markets you can trade on
If you are wondering if prediction markets are legal, they are. So you have no reason to worry about getting into trouble for using them. Now that you know everything about the fees that you could have been missing, we can go over some of the popular prediction markets that you can trade on.
| Market | Possible trades |
| Weather | Temperature, rainfall, and natural disasters |
| Entertainment | Movies, games, TV shows, music |
| Politics | Policies, election results, international events |
| Sports | Player awards, game outcomes |
There are many more you can explore, such as economy prediction markets and even religion; whatever you are interested in likely has a market. Some platforms have more events per market than others, so you may want to compare these as well when you are choosing which platform to join.
Learn More About Prediction Markets Through Our Detailed Guides
Need more context before comparing prediction market sites? The prediction market guides below explain how they work, how event contracts are structured, how to read market prices, and how major platforms compare. Use them to understand the basics before choosing where to trade.
| Prediction Market Guides | Check the Guide Here |
|---|---|
| What Is a Prediction Market | What Is a Prediction Market and How It Works |
| Prediction Markets in the US? | Are Prediction Markets Legal in the US? |
| Kalshi vs Polymarket | Kalshi vs Polymarket: Which Prediction Market Is Best For You |
| Kalshi vs Robinhood | Kalshi vs Robinhood: Which Prediction Market Is Best For You |
| Event Contracts | What Are Event Contracts and How They Work |
| Prediction Markets vs Sportsbooks | Prediction Markets vs Sportsbooks: Differences Explained |
| How to Read Market Prices | How to Read Market Prices as Probabilities |
| The Hidden Costs of Event Trading | The Hidden Costs of Event Trading Explained |
Final thoughts on the real cost of event trading
Everything about event trading is defined to be simple and easy to follow, including the associated costs. Also, the fees are quite low, which is why they are very easy to overlook. Still, you want to note them because they affect the overall amount that you receive after a successful trade. Pay attention to the total that you are shown early when you have placed the trade. Tap on any of the banners on this page to join one of the best event trading platforms.
The best prediction sites for event trading
18+ Only. Restrictions and eligibility requirements apply. Not available in all jurisdictions. Trading involves high risk and may result in loss of your entire investment. See polymarket.us/tos for more information. The Polymarket US App serves as an independent software provider and affiliate of Polymarket US and Polymarket Clearing, the CFTC-regulated derivatives exchange and clearing organization.
Certain limitations apply. The offer is available to new users only, subject to the terms and conditions at http://kalshi.com/tc/55. 18+ only. Restrictions and eligibility requirements apply. Event contract trading involves significant risk and is not appropriate for everyone. Please carefully consider if it is appropriate for you in light of your personal financial circumstances. Kalshi products are not available in all jurisdictions. See kalshi.com/regulatory for more information.
