What Are Prediction Markets? How Event Contracts Work
Prediction markets let people trade contracts based on the outcomes of real-world events. Markets can cover elections, sports, economic reports, cryptocurrency prices, weather, entertainment, and almost any other event with a clearly measurable result.
Each contract’s price reflects the probability assigned by the market. A Yes contract trading at $0.65 generally suggests that traders believe the outcome has about a 65% chance of occurring. Correct contracts typically settle at $1, while incorrect contracts settle at $0.
People often describe the activity as betting, but regulated prediction platforms treat these products as financial derivatives known as event contracts. This distinction affects how the platforms operate, who regulates them, and how users place trades.
Prediction Markets Explained
Prediction markets are open marketplaces where participants buy and sell contracts tied to future events. Instead of purchasing shares in a company, you take a position on whether a specific outcome will happen.
Most prediction markets use questions with measurable answers, such as:
The market price changes as traders respond to polls, injuries, economic data, breaking news, and other information. As more people trade, the price becomes a crowd-sourced estimate of the outcome’s probability.
Prediction Markets vs. Sports Betting: What’s the Difference?
Prediction markets and sportsbooks can offer positions on similar outcomes, but they use different pricing and regulatory models.
| Feature | Prediction Markets | Traditional Sportsbooks |
|---|---|---|
| Price setting | Determined by buyers and sellers | Set and adjusted by the sportsbook itself |
| Product | Yes, No, or outcome-based contracts | Bet with fixed or changing odds |
| Counterparty | Other traders or market makers | Sportsbook operator |
| Early exit | Contracts can often be sold before the outcome is determined | Cash-out availability varies |
| Final value | Commonly settles at $1 or $0 | Pays according to listed odds |
| Primary regulation | Federal derivatives regulation on regulated exchanges | State gambling regulation |
| Market coverage | Sports, politics, economics, weather, and more | Primarily sports and related props |
To generate revenue and reduce financial exposure regardless of the outcome, a sportsbook builds a margin into its odds and accepts bets directly from customers. Prediction markets instead use an order book where participants post the prices at which they’re willing to buy or sell.
Sportsbooks may offer a cash-out feature, but the operator controls whether it’s available and what price it pays. A prediction-market trader can usually submit a sell order whenever the market is open, although finding a buyer may be difficult in a market with limited liquidity.
Are Prediction Markets Gambling?
Prediction markets can resemble gambling because users risk money on uncertain outcomes. However, their legal classification depends on the product, platform, and regulatory structure.
Event contracts traded on a Commodity Futures Trading Commission (CFTC)-regulated exchange are financial derivatives under federal law. These contracts can be used for speculation, forecasting, or hedging against real-world risks. A farmer, for example, could use a weather contract to offset part of the financial risk created by an unexpected freeze.
Some state regulators have argued that sports event contracts function like sports betting and should follow state gambling laws. Exchanges and the CFTC have argued that federally regulated derivatives fall under the CFTC’s exclusive jurisdiction. That dispute has produced ongoing litigation and state-specific restrictions.
The practical experience may feel similar to betting, but regulated platforms structure the activity as contract trading rather than accepting wagers as the house like a traditional casino would.
Why Are Prediction Markets Controversial
Prediction markets are controversial because they let users profit from elections, wars, deaths, court rulings, and other sensitive events. Critics argue that some contracts cross ethical lines or encourage people to treat serious outcomes as entertainment.
State regulators also contend that sports event contracts operate like unlicensed sports betting, while federally regulated exchanges argue that they fall under CFTC authority. Additional concerns include market manipulation, insider information, limited liquidity, and prices that users may mistake for reliable forecasts.
How Do Prediction Markets Work?
Prediction markets connect traders who disagree about the likelihood of an outcome. One participant buys a Yes contract, while another takes the opposing position through a No contract or an offsetting sale.
Most contracts trade between $0.01 and $0.99 and settle at either $1 or $0. A $0.70 Yes contract implies an estimated 70% probability and offers a maximum settlement profit of $0.30 before fees. The buyer risks the $0.70 purchase price.
Prices can move until trading closes. You don’t always have to hold your contract through the event. You may sell it earlier to secure a profit, reduce a loss, or free up funds for another market.
Event Contracts Explained
An event contract is a derivative whose value depends on a specified event. The contract rules explain the question, possible outcomes, trading deadline, resolution source, and settlement process.
For example, a contract may ask:
“Will the Federal Reserve lower its target interest rate at its September meeting?”
A trader who expects a rate cut can buy a Yes contract, while someone who believes rates will remain unchanged or increase can buy a No contract. If the Federal Reserve announces a lower target rate at the meeting, the Yes contract settles at $1, and the No contract settles at $0. If it holds or raises the target rate, the No contract settles at $1, and the Yes contract settles at $0.
Some markets offer several possible outcomes instead of a simple Yes or No. An election market, for example, may offer separate contracts for each candidate. Other markets use ranges, such as whether an inflation report will fall below 2%, between 2% and 3%, or above 3%.
Always read the full rules before trading. A headline may summarize the question, but the contract terms determine how edge cases, postponements, corrections, and disputed results are handled.
How Prices Reflect Probability
Prediction-market prices are commonly read as implied probabilities. A contract priced at $0.42 suggests that the market assigns roughly a 42% chance to that outcome.
The price isn’t an objective forecast or guarantee. It only shows the price at which traders are currently willing to exchange risk.
Suppose you believe an outcome has a 60% chance of occurring, but the Yes contract costs $0.45. You may see value because your estimated probability is higher than the market’s implied 45% probability.
Your analysis can still be wrong. A favorable price only creates a potential advantage when your estimate is more accurate than the market after accounting for fees, spreads, and uncertainty.
Liquidity, Order Books & Market Makers
Liquidity measures how easily traders can buy or sell contracts without causing a significant price change. Active markets usually have more orders, tighter spreads, and faster execution, while less active markets can be harder and more expensive to trade.
The order book displays the prices buyers and sellers are currently offering. The highest bid shows what a buyer will pay, while the lowest ask shows what a seller will accept. The difference between those prices is the bid-ask spread, which directly affects the cost of entering or exiting a position.
For example, a market with a $0.54 bid and a $0.58 ask has a four-cent spread. A market order instructs the platform to complete the trade immediately at the best available price, although the final price may differ slightly in a fast-moving or illiquid market. A limit order lets you set the maximum price you’ll pay when buying or the minimum price you’ll accept when selling, but the trade won’t execute unless another participant agrees to that price.
Market makers help keep those buy and sell prices available by regularly posting orders on both sides of the market. Their activity adds liquidity, which can narrow the bid-ask spread and make it easier for traders to use market or limit orders without causing a large price change. However, they don’t guarantee that every order will fill, especially when trading activity is low.
Who are Market Makers?
Market makers are professional trading firms, financial institutions, or automated traders that regularly post buy and sell orders. On prediction markets, they help ensure contracts remain available to trade even when there aren’t many individual buyers or sellers.
They typically earn money from the bid-ask spread or platform incentives, but they also take on the risk that prices move against their positions. Market makers don’t determine event outcomes or guarantee trades.
Step-by-Step Example Trade
Suppose a prediction market asks whether a presidential candidate will win an upcoming election.
- Review the price: A Yes contract costs $0.55. This suggests that traders believe the candidate has about a 55% chance of winning.
- Research the event: You review polling, fundraising, turnout expectations, and the rules explaining how the market will determine the winner.
- Choose your position: You believe the candidate is more likely to win than the price suggests, so you buy 20 Yes contracts.
- Calculate the cost: Each contract costs $0.55, so 20 contracts cost $11 before fees.
- Watch the price: New polling improves the candidate’s chances, and the contract price rises from $0.55 to $0.72.
- Option 1 – Sell before the election: You could sell the 20 contracts after the price rises to $0.72. The sale would return $14.40, giving you a $3.40 profit before fees after subtracting your original $11 cost.
- Option 2 – Hold until the result: Instead of selling, you could keep the contracts until the election ends. If the candidate wins, each Yes contract settles at $1, making your 20 contracts worth $20 and producing a $9 profit before fees. If the candidate loses, each contract settles at $0, making the position worth $0 and resulting in an $11 loss.
Are Prediction Markets Legal in the US?
Yes, prediction markets can operate legally in the US when their event contracts are offered through an exchange regulated by the CFTC. These platforms must follow federal requirements covering market oversight, customer protection, contract rules, and trading activity.
However, federal approval doesn’t guarantee that every platform or contract is available nationwide. Some event categories, particularly sports, have faced legal challenges from states that dispute whether the CFTC has sole authority over them.
Availability can therefore vary by state, platform, and contract type. Before opening an account or depositing money, confirm that the platform is federally regulated and that its markets are available where you live.
Prediction Market Regulatory Risks & the CFTC
The CFTC oversees federally regulated prediction-market exchanges, monitors trading activity, and enforces rules against fraud, manipulation, and the misuse of nonpublic information. Regulated exchanges must also maintain clear contract terms, market-surveillance systems, and customer-protection procedures.
Legal questions can arise when event contracts overlap with areas traditionally regulated by individual states. Sports-related contracts are a common example, as federal and state authorities may disagree over which rules apply.
Because regulations and platform policies can vary by state and contract type, access isn’t always uniform across the country. Traders should confirm that a platform is regulated and that the specific market is available in their location before placing a trade.
Regulated vs. Unregulated Prediction Markets
Prediction markets include both regulated and unregulated platforms. Regulated exchanges and intermediaries operate under federal oversight and must follow requirements related to contract listings, trading activity, and customer protections.
Unregulated platforms don’t receive the same CFTC supervision, which can leave users with fewer protections and more uncertainty about access, dispute resolution, and fund security.
| Platform Type | Regulatory Status | Main Considerations |
|---|---|---|
| CFTC-designated exchange | Federally regulated | Market surveillance, defined rules, and US regulatory oversight |
| Registered intermediary | Provides access to regulated exchanges | Separate approval and eligibility requirements may apply |
| Offshore or unregulated platform | Not supervised by the CFTC | Fewer US protections and possible geographic restrictions |
| Academic market | Operates under limited research conditions | Low position limits and restricted participation may apply |
| Play-money platform | No cash settlement | Designed for forecasting, research, or entertainment |
A polished website or active social media presence doesn’t prove that a platform is regulated. Check the CFTC’s registration records, read the terms, and confirm which legal entity actually operates the exchange.
Prediction Market Age & Location Requirements
Most regulated US prediction markets require users to be at least 18 and complete identity verification before trading. This process may involve providing a Social Security number, government-issued ID, residential address, and other personal details.
Meeting the age requirement doesn’t automatically guarantee access. State restrictions, contract-specific rules, sanctions requirements, and account eligibility checks can prevent users from opening an account or trading certain markets.
Availability can also change based on location and the type of event contract offered. Users should confirm that both the platform and the specific market are available where they live before depositing funds.
What Can You Bet On? Types of Prediction Markets
Available contracts at prediction markets depend on the platform, current events, regulatory approval, and whether the result can be verified through a reliable source.
| Market Type | Common Examples |
|---|---|
| Politics | Elections, nominations, legislation, and government appointments |
| Sports | Game winners, championships, spreads, totals, and player results |
| Economics | Inflation, unemployment, GDP, and Federal Reserve decisions |
| Finance | Stock indexes, commodity prices, and company milestones |
| Cryptocurrency | Bitcoin prices, token launches, and regulatory decisions |
| Weather | Temperature, rainfall, snowfall, storms, and hurricanes |
| Entertainment | Awards, television results, music charts, and movie releases |
| Technology | Product launches, AI developments, and space missions |
Political Prediction Markets Explained
Political prediction markets let users buy and sell contracts based on elections, government decisions, nominations, and other political outcomes. A market may ask which candidate will win an election, whether a bill will pass, or who will receive a major appointment.
Contract prices change as traders respond to polling, endorsements, fundraising, economic news, and campaign events. This gives users a continuously updated estimate of how likely an outcome appears, rather than a snapshot taken at one point in time.
These prices shouldn’t be treated as a replacement for polls or expert analysis. Trading activity may be uneven, emotional reactions can influence prices, and a few large trades may cause noticeable movement.
The settlement rules are especially important in political markets. A contract asking who will “win” an election may settle based on the certified result, an official announcement, or another clearly defined standard, so traders should read the full terms before buying.
What Are Sports Prediction Markets?
Sports prediction markets let users buy and sell contracts based on the outcome of a sporting event. These contracts can cover game winners, championships, point totals, player statistics, playoff qualification, and major awards.
For example, a market may ask whether a team will win a game or score more than a certain number of points. The contract price changes as traders react to injuries, team news, and other information that may affect the result.
Unlike a traditional sportsbook, a prediction market doesn’t set the odds and accept the bet itself. Prices are determined by buyers and sellers, and traders can often sell their contracts before the event ends when enough trading activity is available.
Access to sports prediction markets can vary by state, platform, league, and contract type. Some states place additional restrictions on sports-related event contracts, so users should confirm local availability before trading.
Economic & Financial Prediction Markets
Economic and financial prediction markets let users trade contracts based on measurable events, such as inflation reports, employment numbers, interest-rate decisions, and gross domestic product.
Some traders use these markets to profit from forecasts about the economy. Businesses and investors may also use them to reduce the financial impact of an unfavorable result.
For example, a company affected by higher interest rates could buy a contract that pays if the Federal Reserve raises rates. The payout wouldn’t eliminate the company’s costs, but it could help offset part of the loss.
Crypto, Weather & Entertainment Markets
Crypto prediction markets let users trade contracts based on whether Bitcoin or another digital asset will reach a certain price by a set deadline. Prices can change quickly because cryptocurrency markets trade around the clock.
Weather prediction markets cover measurable outcomes such as temperature, rainfall, snowfall, and storm activity. These contracts usually settle using data from a named weather station or government agency, so traders should check which source the market uses.
Entertainment markets can cover award winners, television competitions, box office results, music rankings, and celebrity events. These markets may attract less trading activity than major political or sports contracts, which can make it harder to buy or sell at the expected price.
How to Bet on Prediction Markets & Place Your First Trade
The process for trading prediction markets resembles opening a financial account more than registering at a sportsbook. You’ll generally need to verify your identity before depositing and trading.
Start by confirming that the exchange or intermediary is registered with the CFTC and available in your location. Review its fees, withdrawal methods, market selection, and account requirements.
Enter your personal information and complete the identity-verification process. Platforms may request a photo ID, Social Security number, and proof of address.
Use accurate information that matches your payment accounts. Inconsistent names or addresses can delay deposits and withdrawals.
Connect an available funding method, such as a bank account or debit card. Minimums and processing times vary.
Kalshi currently lists a $10 minimum for bank and debit card deposits. Bank transfers may take several business days to settle, although part of the deposit may become available sooner.
Choose a subject where you can evaluate the relevant information. Familiarity with a sport, industry, election, or economic indicator can help you identify details that other traders may overlook.
Avoid selecting a contract solely because it appears on a trending page. High trading volume doesn’t mean the current price offers good value.
Review the exact settlement conditions before placing an order. Pay attention to the deadline, official source, cancellation policy, and definitions used in the market.
The contract may settle differently from how the outcome is described in headlines or on social media.
Choose Yes when you believe the stated event will occur. Choose No when you believe it won’t.
Compare your estimated probability with the market price. A Yes price of $0.80 offers only $0.20 in potential settlement profit, so the outcome must be highly likely for the risk to make sense.
Decide what kind of contracts you want to buy. A market order buys or sells immediately at the best available price, while a limit order only executes at the price you set or better. Market orders offer speed, but limit orders provide more price control.
You’ll also choose how many contracts to trade. Because binary contracts settle at either $1 or $0, an incorrect prediction can reduce the entire position to $0, so only risk what you can afford to lose.
Keep track of news or other information that could change the contract’s price. You can sell before the event ends to lock in a profit or reduce a possible loss, or hold the contract until it settles at $1 or $0.
A sell order only goes through when another trader agrees to buy at your chosen price.
Prediction Market Tips for Beginners
Prediction markets are easy to start using, but small details can make a major difference in the results. These tips can help beginners understand pricing, control risk, and avoid common mistakes before placing a trade.
Compare the Price With the Probability
Don’t just ask whether you think an event will happen. Consider how likely it is and compare that estimate with the contract price. Even a likely outcome may not be worth trading when the price is already high.
Use Limit Orders in Less Active Markets
A limit order lets you choose the highest price you’ll pay or the lowest price you’ll accept. This can help you avoid overpaying or selling for less than expected when there aren’t many active traders.
Read the Settlement Rules
Check exactly how and when the contract will be decided before placing a trade. Look for the deadline, the official source used to confirm the result, and what happens if the event is delayed or canceled.
Account for Trading Fees
Remember to subtract any platform fees when calculating your possible profit. A trade that looks appealing at first may offer much less value once those costs are included.
Don't Chase Sudden Price Changes
Breaking news can cause prices to rise or fall quickly. Don’t rush into a trade just because the market is moving. Take a moment to decide whether the new price still makes sense.
Keep Each Trade Small
Avoid placing too much money on one contract. Smaller positions reduce the damage from an incorrect prediction and make it easier to spread your risk across several markets.
Only Trade Money You Can Afford to Lose
Never use money needed for rent, bills, savings, or other essentials. A prediction contract can settle at $0, which means you could lose the full amount you paid.
Set Limits Before You Start
Political, sports, and cryptocurrency markets can move quickly and encourage emotional decisions. Decide how much you’re willing to spend on one trade and overall before you begin, then stick to those limits.
How Are Prediction Markets Taxed?
Profits from prediction markets are generally taxable and must be reported on your federal tax return. This applies even when the platform doesn’t send you a tax form.
The tax form you use may depend on how the IRS classifies your prediction-market trades. Some contracts may receive special tax treatment, while others may be reported more like regular investment income, so the same rules don’t necessarily apply to every trade.
Keep clear records throughout the year, including:
- Contracts bought and sold
- Prices paid and amounts received
- Profits and losses from settled contracts
- Trading and withdrawal fees
- Promotional credits or rewards
- Annual account statements
State income taxes may also apply depending on where you live. Because prediction-market tax treatment can vary, consider speaking with a qualified tax professional if you trade regularly, earn a significant profit, or aren’t sure which forms to use.
Risks of Trading Prediction Markets
Prediction markets can be useful, but every trade carries risk. Prices can move quickly, information may be incomplete, and even a well-researched prediction can be wrong. Understanding the main risks can help you make more careful decisions.
You Can Lose the Full Purchase Price
Binary contracts usually settle at either $1 or $0. When your prediction is wrong, the contract may become worthless, causing you to lose everything you paid for it.
Wide Spreads Can Increase Trading Costs
Less active markets often have a larger gap between the buying and selling prices. This can make contracts more expensive to buy and reduce the amount you receive when selling.
Settlement Rules Can Be Misunderstood
The contract title may not explain every condition. Read the full rules to see which result source is used and what happens when an event is delayed, canceled, or disputed.
Breaking News Can Move Prices Quickly
New information can cause contract prices to rise or fall within minutes. Entering too late may mean paying a high price after other traders have already reacted.
You May Not Be Able to Sell Quickly
A contract can only be sold when another trader agrees to buy it. Markets with limited activity may force you to wait, accept a lower price, or hold the contract until settlement.
Access Can Vary by Location
Some platforms and contract types aren’t available in every state. Local rules or platform restrictions may prevent you from opening certain markets or continuing to trade them.
Profits May Be Taxable
Profitable prediction-market trades generally need to be reported as taxable income. Keep records of your purchases, sales, fees, and settled contracts throughout the year.
Market Prices Aren’t Exact Predictions
A contract priced at $0.73 suggests that traders currently give the outcome about a 73% chance. It doesn’t prove that the real probability is exactly 73% or guarantee that the event will happen.
Prediction Markets Aren’t Reliable Income
Treat prediction markets as a high-risk activity rather than a dependable way to earn money. Set spending limits, never borrow money to trade, and take a break when trading begins affecting your finances or daily life.
Prediction Market FAQs
Kalshi and Polymarket lead the field, carrying the deepest liquidity and broadest market coverage. Robinhood, ProphetX, and Novig are also popular.
Yes, but profits aren’t guaranteed. You make money when your probability estimate beats the market price and the outcome lands your way. Many traders lose over time, so treat it as high-risk, not steady income.
Some do, some don’t. Platforms may send a 1099 reporting your trading activity, but you’re responsible for reporting profits either way. Keep your own records of trades, prices, and fees, and confirm each platform’s tax reporting policy.
Platforms typically earn through trading fees, charging a small cut when you buy, sell, or settle contracts. Some also collect on deposits, withdrawals, or spreads. Unlike a sportsbook, they don’t profit by taking the opposite side of your trade.
Kalshi and Robinhood are good beginner-friendly options because they offer straightforward interfaces, clear contract pricing, and access to regulated US prediction markets. The best choice depends on which markets you want to trade, the fees charged, and how easy you find the platform to use.
Trading Prediction Markets Responsibly
Before you start trading, it’s worth taking a step back and setting some simple ground rules for yourself. A good starting point is deciding on a budget ahead of time and only using money you can comfortably afford to lose, never funds meant for bills, savings, or anything essential. It also helps to keep individual trades small, especially in fast-moving markets like politics, sports, or crypto, where things can change quickly.
Just as important is knowing when to pause. Take breaks, avoid the urge to chase losses, and step away if trading starts to feel stressful or begins affecting your finances. At its best, prediction markets should feel like a controlled, intentional hobby, not something that takes over your life or your budget.
Start Trading at Prediction Markets
Prediction markets let users buy and sell contracts tied to real-world outcomes, with prices showing how likely traders believe each result is. Markets can cover elections, sports, economic reports, cryptocurrency, weather, and entertainment.
Before trading, understand how contract prices, order types, settlement rules, fees, and taxes work. Regulated platforms provide a legal way to access event contracts in the US, but availability can vary. Careful research and realistic expectations make it easier to use prediction markets without taking unnecessary risks.
