Prediction Market Platforms: A Comparison

Prediction markets let users trade contracts on possible future events, from presidential election results to the Oscar for Best Actor. Traders buy “Yes” or “No” shares to indicate whether they think an event will happen. A correct share pays a fixed amount, typically 1 USD; an incorrect share is worthless.
Kalshi and Polymarket account for much of the activity and capital in this sector. This guide examines major platforms, contract types, pricing, legal considerations, risks and taxes. Access and rules vary by location, and the examples below do not confirm availability in Canada.

Current Platforms at a Glance

There are many prediction market services, but a smaller set draws much of the trading. Participants often prefer venues where their orders are less likely to move a contract’s price, so activity can concentrate on a few platforms.

Prediction Market Platform Comparison

Prediction Markets Explained

A Definition in Plain Language

A prediction market is a marketplace for contracts whose value is tied to a future event. Instead of buying company shares, participants take a position on a question such as “Will the Fed raise interest rates at its next meeting?” or “Will the Dodgers win the World Series?”

A contract price reflects the market’s combined view of how likely an outcome is. A “Yes” share priced at $0.60 implies a probability of about 60%. If the event happens, the share pays $1.00; if it does not, it pays $0.00.

For instance, imagine a contract asking whether it will rain in your city tomorrow. You buy a “Yes” share for $0.30. If it rains, the share pays $1.00, for a $0.70 profit. If it stays sunny, the share expires worthless and you lose the $0.30 you paid.

If your outlook changes before the event is settled, you may be able to sell your position to another participant.

YES/NO Event Contracts

Most prediction market contracts have two possible outcomes: “Yes” and “No”. The two sides’ combined prices add up to 100%, or $1.00.

Take the question “Will the Federal Reserve cut interest rates this month?” There are two possible positions:

• “Yes” means you expect a rate cut before the month ends.
• “No” means you expect no cut during that period.

If the Fed cuts rates, “Yes” holders receive $1.00 per share, while “No” holders lose the amount they paid.

Some markets offer several possible outcomes. For example, a “Who will win the soccer World Cup?” market might price each team separately. Most contracts, however, have a straightforward “Yes”/“No” structure.

Interpreting Probability from Prices

Contract prices show how participants assess an event’s chances. Since a correct outcome pays $1.00, a price in cents can be read as an implied percentage.

A “Yes” share priced at $0.60 signals a market estimate of 60%; the “No” side would be $0.40, representing the remaining 40%. A price of $0.00 suggests the outcome is considered impossible, while $1.00 implies certainty. In between, prices reflect the terms buyers and sellers are willing to accept given the risk.

Prices change as new information emerges. Suppose you paid $0.60 for a share, then new data raises the implied probability to 80%. The share is now worth $0.80, so selling before the event is settled could net a $0.20 profit.

Factors Behind Price Movements

A number of factors can affect contract prices:

• New Information: Data releases, polls, leaks and official statements may quickly change participants’ views, leading to orders that reflect the updated consensus.
• Market Liquidity and Depth: One large order can move a low-volume market. A deeper order book usually requires more capital to shift by the same amount.
• Order Flow and Positioning: Activity from institutional traders, hedging bots or other large participants can alter the balance of orders. Forced selling to manage risk may add to an existing move.

Prediction Markets and Sportsbooks Compared

Prediction markets and sportsbooks may look similar, but their trading models work quite differently.

Prediction Markets and Polls Compared

Prediction markets are often claimed to outperform traditional polls because participants have money at stake. That incentive alone does not guarantee more accurate forecasts.

Polls ask respondents who they think will win or which outcome they prefer. Prediction markets ask participants to commit money to an expected result. Without money at stake, answers may reflect preference or bias, with no direct cost for getting it wrong.

A market’s question is closer to “what do you think will happen?” than “what would you like to happen?” Risking money may encourage research and make it harder to overlook personal preferences, but it does not eliminate bias.

Markets can also react to news as it arrives, whereas a poll captures responses from when it was conducted.

For a developing event, a market price can offer a timely snapshot of traders’ expectations, but it is not a definitive forecast or a replacement for polling.

How Prediction Markets Work: Step by Step

Most markets move through three stages: a question is listed, contracts are traded and the result is settled.

1. Market creation: The platform posts a question about a future event and a deadline, such as “Will Real Madrid win the Champions League this year?” Early trades establish “Yes” and “No” prices and their implied probabilities.
2. Market movement: Trading continues while the contract remains open. A convincing first-match win by Real Madrid might lead to more buying of “Yes” shares and push up their price. An injury to a star player could strengthen “No” and weaken “Yes”. Participants can trade with others or hold their contracts until the event ends.
3. Market resolution: After the deadline, the platform checks its named source, such as the UEFA website, to confirm the result. If Real Madrid wins, “Yes” holders receive $1.00 per share and “No” holders receive nothing.

Contract Terms and Payouts

These contracts have fixed payouts. The maximum payment for a winning share is set in advance, often at $1.00, €1.00 or 1 stablecoin such as USDC, depending on the platform.

Contract terms set out the question, possible outcomes (usually “Yes” and “No”), settlement process, expiry date and official source used to verify the result.

Buyers pay the current price, which is also the most they can lose on that position. For a share bought at $0.60, the maximum loss is $0.60.

Once the event ends and the official result is established, settlement happens automatically. The platform checks its named source; the losing side falls to $0.00 and the winning side pays $1.00. Deduct the purchase price from the payout to work out net profit.

Order Books: Bids, Asks and Spreads

Unlike sportsbooks, which set their own odds, prediction markets commonly rely on an order book. It lists the prices participants are willing to pay to buy (bids) and the prices sellers will accept (asks).

Trades typically match one participant with another rather than making the platform the counterparty. When a buyer’s bid matches a seller’s ask, the order is filled and that transaction establishes a new quoted price.

Here are some useful order-book terms:

• Bid: The highest price a prospective buyer is offering for a contract.
• Ask: The lowest price a seller is willing to accept for a contract.
• Spread: The difference between the best bid and the best ask. A narrower spread can signal higher liquidity.

Market Orders and Limit Orders

Two common ways to buy contracts are with a market order or a limit order.

A market order aims to fill at the best available price, matching against the lowest asks in the book. It can open a position quickly, but in a market with limited liquidity, a large order may use up several price levels and cost more than expected.

A limit order sets the price you are willing to pay. Your bid and quantity are added to the order book, and a seller must agree to trade at that price or better. This caps your purchase price, but the order may not fill if the market never reaches it.

Liquidity and Slippage

In a prediction market, liquidity refers to the contracts and funds in the order book that other participants can trade against.

In a liquid market, enough opposing orders may be available for a large order to fill at one price. In a thinner market, an order can use up the best-priced contracts, with the remainder filled at worse prices. This unfavourable price movement during execution is called slippage.

For example, say you place a market order for 100 “Yes” contracts shown at $0.60 apiece, expecting to pay $60.00. There are not enough contracts available at that price:

• Just 20 contracts are offered at $0.60 ($12.00).
• The next 30 contracts are priced at $0.65 each ($19.50).
• The remaining 50 contracts are available at $0.70 each ($35.00).

The order is filled immediately across all three prices. Your total is $66.50, not $60.00.

Fees and the Total Cost of Trading

Keep these potential costs in mind before placing an order:

• Platform Commissions: Polymarket.com charges minimal fees on some transactions, and blockchain network fees may also apply. Kalshi and Polymarket US post their fee schedules on their websites.
• Spread: The gap between bids and asks can be an indirect cost when you enter or exit using a market order. With an illiquid contract and a wide spread, the price may have to move substantially in your favour just to break even.
• Opportunity Cost: Money committed to a position stays tied up until the contract is settled. You cannot use it elsewhere or earn interest on it during that time.

How Settlement Works

Settlement starts once the event covered by a contract has ended. The platform stops trading and waits for its designated source to confirm the outcome. This could be a government statement, sports federation, company report or another data provider.

After confirmation, the result is applied to every contract: the winning side pays $1.00 per share and the losing side is valued at $0.00. Winning payouts are credited automatically, the market closes and committed funds are released.

Disputes and Cancelled Markets

Some outcomes are open to interpretation. Contract wording may not account for an unusual situation, or an official source may update its information. The platform may pause trading while it reviews the matter.

Centralized platforms such as Kalshi and Polymarket US have legal and regulatory processes for dealing with disputes.

Crypto-native platforms such as Polymarket.com may rely on blockchain-based dispute procedures. Governance-token holders, who have voting rights through their tokens, can vote on the outcome they believe is correct.

A platform may cancel a contract if its terms are defective or the result cannot be verified. In that case, trades are reversed and participants get their original funds back.

Prediction Market Categories

Prediction contracts cover a wide range of subjects beyond finance, from inflation figures to weather conditions.

Trending and Breaking-News Markets

These contracts often appear in response to breaking stories and may settle within minutes or hours. For example, after a recording of a tech CEO making controversial remarks is leaked, a market might ask, “Will the CEO resign in the next 24 hours?”

Breaking-news contracts can experience sharp price swings and heavy trading. They also involve considerable uncertainty, as reliable information may be limited when decisions are made.

Political Markets

Political contracts are a popular category. During a campaign, market prices may react to events as they happen, but that does not automatically make them more reliable than traditional polls.

• Elections: Contracts may ask about winners, party seat counts, vote shares or the date a final result is confirmed.
• Legislation: Markets may focus on regulations, bills, court rulings, political appointments or judicial approvals.
• Policy Outcomes: Contracts can cover tariffs, tax changes, immigration figures, subsidies and climate targets.
• Geopolitical Events: Participants may trade on government alliances, international agreements, military action and foreign policy changes.

Sports and Esports Markets

Sports make up another significant share of prediction market activity. Example contracts include:

• Match Outcomes: Questions may cover the winner, a draw, the scoring margin or an event such as a red card.
• Tournament Winners: Pick the team or competitor expected to win the entire competition.
• Accumulated Results: Longer-term contracts may track player or team statistics, such as a player’s average points for the season or a team’s total goals against.

Crypto Markets

Crypto-related contracts let participants trade on events such as:

• Price Targets: Contracts may ask whether a cryptocurrency such as Bitcoin will reach a specified price by a given date.
• Regulatory Decisions: Markets may cover legal cases involving crypto companies, ETF approvals or agency lawsuits, including actions by the CFTC.
• Major Industry Events: Questions may involve protocol upgrades, network forks, airdrops, token launches or outages.

Finance and the Economy

Financial and economic contracts have helped bring prediction markets to broader attention. Examples include:

• Interest Rates: Trade on central bank decisions, including those made by the Federal Reserve or European Central Bank.
• Inflation Reports: Forecast whether the CPI or another inflation measure will rise, fall or stay the same.
• Employment Data: Markets may ask about official unemployment claims or changes in non-farm payrolls.
• Economic Milestones: Contracts may concern a technical recession, a change in a country’s credit rating or the performance of a stock market index.

Geopolitics and Global Events

These markets may cover wars, including trade conflicts, international treaties, humanitarian events and strategic alliances.

Some platforms restrict these contracts. Operators may prohibit markets that could affect social stability to comply with rules in jurisdictions that address terrorism or violence.

Technology and Business

Contracts can address product launches, mergers, quarterly earnings or bankruptcy filings. A market might ask when the next iPhone will be released or whether a private space mission will succeed. Those who analyse financial statements may also trade around earnings reports or dividend decisions.

Culture and Entertainment

Entertainment markets can cover industry awards, box-office results, social-media creators, YouTubers and pop-culture events—for example, whether a celebrity will get married. Questions might include which film will win a major award or whether an influencer boxing match will happen.

Climate and Science

Contracts may ask whether temperature records will fall, emissions will meet a target, a hurricane will reach a specified area or a major weather event will occur by a certain time. Markets may also cover space-mission launch dates, physics discoveries and advances in AI.

The Prediction Market Industry in 2026

After rapid growth in recent years, the sector is entering a more established phase. Regulation is evolving and institutional capital is moving into the space. Understanding these changes can help readers assess the environment in which trading takes place.

Why Activity Centres on a Few Platforms

Polymarket and Kalshi lead the sector partly because they attract substantial liquidity. Traders often favour venues where large orders are less likely to cause sudden price shifts, which in turn draws more activity to those same platforms.

Prediction markets can offer a significant first-mover advantage. A platform that builds liquidity early can create a cycle that reinforces itself: more users bring more capital, deeper markets can make it easier to trade, and better trading conditions may attract still more participants.

A new competitor would have to tackle the liquidity challenge from day one. Low volume can mean wide spreads and fewer orders. Without enough participants, a newcomer may find it difficult to remain viable.

Entry Barriers: Rules, Capital and Compliance

New prediction markets face several substantial hurdles before they can compete with established platforms:

• High Capital Requirements: Launching a market takes considerable funding. Operators may need to provide initial liquidity and build dependable technology. If the order book is unavailable even for a second, users may lose confidence and leave.
• Licensing and Regulatory Compliance: Obtaining the required permissions can be a lengthy, expensive process. Many jurisdictions view these markets as a contested area between gambling and complex financial products. Regulatory approval may involve years of audits.
• Anti-Money Laundering and Security: Know Your Customer (KYC) and Anti-Money Laundering (AML) requirements differ by region. Platforms that do not verify users may face multimillion-dollar penalties and risk losing their licences.

Network Effects and Concentrated Liquidity

A network effect arises when a service becomes more useful as more people take part. A larger user base can attract liquidity, which may then bring in even more users.

Greater market depth can let participants trade with narrower spreads and lower transaction costs. That efficiency may draw market makers and larger traders. As participation grows, there may also be more incentive to list additional contracts and expand the order book.

Growth and Institutional Participation

The sector is moving beyond niche retail activity, attracting interest from institutional finance and larger-scale risk managers. The following developments form part of this shift:

• The Arrival of Smart Money: Proprietary trading firms and quantitative funds have entered the field. As markets deepen, algorithmic systems can spot and respond to price gaps in milliseconds, potentially narrowing spreads and improving efficiency.
• Hedging: Some large companies and banks have started using these markets to manage exposure to real-world events. They may use binary contracts as direct cover instead of costlier conventional derivatives.
• Data as a Product: Information services such as Bloomberg now display platform probabilities alongside conventional Wall Street figures. Contract prices are increasingly used as one measure of market expectations.

A Closer Look at the Platforms

Kalshi and Polymarket account for much of prediction-market trading, but other services cater to different needs. Here are profiles of several notable platforms.

Kalshi

Kalshi is an exchange for event contracts. Participants trade forecasts of future outcomes directly with other users through “Yes” and “No” shares. Prices reflect the community’s implied probability, and a correct prediction pays $1.00 per share.

Kalshi is registered in the United States as a Designated Contract Market (DCM) with the U.S. Commodity Futures Trading Commission (CFTC). It operates under federal oversight and uses a registered clearinghouse for user funds and transactions.

While regulated in the U.S., the platform accepts customers from some other countries. Prospective users are advised to check its excluded-country list before signing up. This description does not establish access or authorization in Canada.

Available categories:

• Politics
• Sports and Culture
• Cryptocurrencies
• Climate and weather events
• Economics
• Technology and Finance

Kalshi’s main advantages include CFTC oversight, which addresses legal risk for U.S.-based users, liquidity in some markets and settlement terms tied to government data. Potential downsides include extensive KYC checks, numerous blocked countries and scheduled maintenance when trading is unavailable.

The service may appeal to traders interested in macroeconomic events within a regulated framework. Its API may also suit quantitative funds, while businesses can use the markets to hedge certain risks.

Polymarket

Polymarket is a decentralised exchange where participants use cryptocurrency to trade on future events. Prices are denominated in USDC, a stablecoin pegged to the U.S. dollar, and a winning share pays $1.00. The blockchain-based platform operates 24/7 without intermediaries.

Polymarket uses the Polygon blockchain, which is described as enabling fast, inexpensive transactions. Instead of depositing funds in a company account, users keep USDC in their own digital wallets. Smart contracts and the UMA Optimistic Oracle system manage final settlement.

Polymarket has a separate legal structure for U.S. customers, approved by the CFTC as a DCM. The source describes Polymarket US as providing U.S. users with the same legal protections as Kalshi.

Available categories:

• Trending markets
• Politics
• Finance
• Crypto
• Sports
• Technology
• Geopolitics
• Pop culture

Polymarket’s stated strengths include deep liquidity, rapid creation of new markets and a non-custodial design that keeps funds under users’ control. Most contracts are fee-free, and withdrawals are described as instant.

Using the platform requires familiarity with cryptocurrency and digital wallets. In markets with an unclear result, decisions by decentralised oracles can lead to disputes.

The service is intended for people comfortable with Web3 tools. Its flexible selection of topics may appeal to probability-focused traders, analysts, journalists and quantitative traders looking for an alternative to conventional regulated platforms.

PredictIt

PredictIt is an early platform for forecasting U.S. political events. Its contracts cover government actions, elections, appointments and legislation, attracting researchers, pollsters, analysts and people who closely follow politics.

PredictIt is not registered as an exchange; it operates under a CFTC “no-action letter” that permits a small-scale project described as primarily educational. A regulatory update in July 2025 raised user contribution limits and allowed non-governmental management. The platform still cannot offer cryptocurrency trading or serve institutional traders.

ForecastEx

ForecastEx, backed by Interactive Brokers, lists contracts on financial events. It pays interest on positions, an uncommon feature, and users must “offset” a position by buying the opposing contract to exit.

ForecastEx is regulated in the United States and was registered in 2024 as a CFTC-designated contract market and clearinghouse. The commission characterizes its contracts as fully collateralized binary options.

The exchange focuses on economic measures such as inflation, GDP, trade balances and unemployment, attracting institutional and specialist financial traders. It does not list markets on crypto or celebrities.

Manifold

Manifold is a blockchain-based platform where trades use Mana, a special token, rather than real money. Users can create contracts on almost any subject, from “Will I exercise this week?” to “Is my girlfriend going to leave me tonight?”

An automated market maker sets prices according to the estimated likelihood of each outcome, and the service runs 24/7. New users receive a free allotment of Mana, which they can grow by making accurate forecasts.

Metaculus

Metaculus hosts probability forecasts on scientific and geopolitical questions. No real money or financial exposure is involved: users sign in and submit predictions.

Its reputation system gives greater weight to forecasts from users with a track record of accuracy, a design intended to discourage manipulation.

This model attracts researchers, scientists, data analysts and science enthusiasts who want to assess potential technology impacts and follow global trends.

Kalshi and Polymarket Compared

Kalshi and Polymarket are leading names in this market, but their features differ in ways worth weighing before choosing a platform.

Who Is Eligible to Use Each Platform?

Kalshi is no longer limited to U.S. users, and Polymarket has returned to the U.S. market. Both services continue to impose location restrictions and KYC requirements.

Eligible-country lists can change, so check each platform’s own terms before registering. Both exchanges prohibit using a VPN to bypass location limits.

Differences in Regulation

For users in the United States, Kalshi operates as a registered brokerage-style exchange supervised by the CFTC. Its clearinghouse acts as a third party in transactions and disputes, which are handled under federal law.

Polymarket.com uses a hybrid model, with on-chain settlement through cryptographic oracles. Funds remain decentralised and under users’ control, while disputes are resolved through community processes and decentralised incentives.

Polymarket US has a U.S. legal structure that is compared with Kalshi’s. In the United States, the platform is regulated by the CFTC, and users have the same legal protections outlined for Kalshi.

Trading Volume and Liquidity

Kalshi and Polymarket were closely matched for the lead. In early March 2026, reported weekly notional volume was 53% for Kalshi and 47% for Polymarket.

The decentralised service was closing the gap in direct user activity. It recorded 24.6 million weekly transactions, compared with 18.7 million for Kalshi.

Range of Markets and Listing Pace

Kalshi prioritises formal contracts settled against official sources, which can suit weather and conventional financial events. Polymarket lists thousands of markets on internet trends, Middle Eastern conflicts, AI developments and less conventional research topics.

Both services cover major elections and sporting events. Polymarket also lists questions for which public official data may not exist, while Kalshi has a stronger presence in local U.S. markets that may matter less to decentralised users.

For breaking events, Polymarket can reportedly list a market within minutes. Kalshi’s regulated review process takes longer. That may give Polymarket an edge on emerging stories, while Kalshi emphasises a more formal process.

Fees and Costs

Kalshi and Polymarket both offer contract trading, but their fee structures differ considerably.

Funding and Withdrawing

Kalshi takes deposits by ACH, wire transfer and debit card. A partner processor also supports USDC and USDT cryptocurrency deposits, with fees because these are not direct blockchain transactions.

Withdrawals by bank transfer carry no platform fee. Debit-card or cryptocurrency withdrawals may incur charges from a third party.

Polymarket.com operates on Polygon, with contracts denominated in USDC.e. Users may transfer USDC from an exchange such as Coinbase or purchase it by credit card through MoonPay.

Polymarket.com does not charge a withdrawal fee and sends funds to the connected wallet. Network charges may still apply when converting to another currency.

Polymarket US does not require cryptocurrency. Users can fund accounts through conventional methods such as bank transfers and credit cards, much like Kalshi.

Choosing a Platform for Your Needs

Kalshi may suit someone looking for a regulated U.S. trading environment, who is willing to complete KYC and wants to avoid cryptocurrency.

Polymarket may appeal to people comfortable with digital wallets and private keys who want more direct control over their funds. It offers round-the-clock trading and substantial liquidity in the Web3 market.

Liquidity, Volume and Market Quality

Liquidity, trading volume and market quality all influence how smoothly orders are filled. Overlooking them can mean a larger position moves the price against the trader.

Liquidity Explained

Liquidity is the money and contract interest available in an order book. It affects how easily a position can be opened or closed without moving the price.

Unlike a sportsbook wager, a market trade needs a counterparty on the other side. A market with two million dollars in liquidity may have enough depth for a $10,000 order. A three million trade could consume the available orders and cause substantial slippage.

When liquidity is scarce, finding a counterparty can be difficult. Wide spreads can also cut into potential returns as soon as a position is opened.

Volume and Open Interest

These measures are sometimes mistaken for one another, but they describe different things:

• Volume: The total contract value traded over a period. It can help indicate the strength of a price trend; a sudden rise may signal new information entering the market.
• Open Interest: The total value currently committed to open positions as traders wait for resolution. It is one measure of overall market liquidity.

Looking at both measures can help you assess a market before deciding whether to trade.

Spreads and Execution Costs

A wide spread in a thin market can be an unexpected cost for new traders. It is the gap between the highest bid and the lowest price a seller will accept.

Suppose a contract has a $0.65 bid and the nearest seller asks $0.68. A market order crosses that gap at once, putting the buyer $0.03 behind. The price would need to reach $0.69 to make a $0.01 profit.

Risks in Thin Markets

Illiquid, or “thin,” markets can cause significant trading problems. Compared with heavily traded events, they have fewer participants and can expose traders to risks such as:

• Sharp Volatility and Slippage: A modest order can use up available liquidity and push the contract price sharply up or down.
• Spoofing and Distortion: Where little money can move a price, bad actors may try to manipulate the implied probability and produce a misleading signal.
• Difficulty Exiting: A position may show a paper gain, but without buyers you may have to hold it until settlement rather than secure that gain.

Legal and Regulatory Considerations

Two Regulatory Models

Prediction-contract services generally follow one of two broad regulatory models. The model affects how funds are handled and where a service can operate.

• Regulated Exchanges: These exchanges are overseen by government agencies, including the U.S. CFTC. They may be authorized to offer derivatives and use clearinghouses to separate customer funds and guarantee fiat transactions. KYC checks are required.
• International Crypto Platforms: These platforms use blockchain and stablecoins outside conventional financial systems. Users can trade with one another without a traditional government licence, but the decentralised structure can leave their legal status uncertain.

The United States Framework

In the United States, the Commodity Futures Trading Commission oversees this area. Because these contracts relate to financial outcomes tied to future events, lawmakers treat them as derivatives.

These markets are governed by laws such as the Commodity Exchange Act, rather than casino or sports-betting rules. Exchanges serving U.S. customers need government approval, maintain transparent order books and cannot list certain contracts, including those concerning acts of terrorism.

Europe and Other Jurisdictions

Countries take different approaches to prediction contracts. Depending on the jurisdiction, they may be classified as gambling, regulated financial derivatives or prohibited products.

European regulation is set at the national level. France and Germany, for example, require advance approval and publish lists of approved and banned operators. In the United Kingdom, the Gambling Commission reviews these markets and often treats them as betting intermediaries. Non-compliant platforms may face penalties.

In Canada, regulatory treatment depends on the jurisdiction and the type of product. The source describes Ontario securities authorities as treating short-term prediction contracts as financial binary options and prohibiting their sale to retail investors. At the federal level, it says sports-outcome markets also engage the Criminal Code. These statements do not establish a platform’s authorization or availability for Canadian users.

In Australia, the Australian Communications and Media Authority has technical enforcement powers. If it finds a foreign site operating without a licence under the country’s Interactive Gambling Act, it can order local internet providers to block the site.

Why Access Varies by Location

Platforms often use geo-blocking to manage legal exposure. A user’s physical location affects access because laws classify these markets differently. Operators may also block regions pre-emptively to avoid penalties for serving residents without a licence.

Sensitive Political and Sports Markets

Election and sports contracts may attract close regulatory scrutiny because of the potential for manipulation. Common concerns include:

• Integrity of the Democratic Process: Large-scale trading on elections could give participants an incentive to influence public opinion.
• Match-fixing: Potential financial rewards may encourage attempts to bribe players or referees, or to disclose confidential information.
• Insider Trading: Political aides with access to non-public polling information could use it to seek an unfair advantage.

Risks of Trading Prediction Markets

Prediction markets involve risks that may differ from those of more conventional financial products:

Risk of Losing the Full Stake

With a binary “Yes” or “No” contract, a wrong prediction costs you 100% of the money committed to that position. If you do not sell to another trader before settlement, your investment falls to $0.00.

Liquidity Risk

You may not find a buyer when you want to take a profit or limit a loss. In a thin market, bids can disappear, leaving you to hold the position until settlement.

Regulatory Risk

Authorities may block a platform or impose fines. If an exchange fails to comply with a prohibition and its assets are frozen, users could permanently lose access to their funds.

Platform Risk

Users of regulated services such as Kalshi and Polymarket US could be affected if a company fails and freezes customer funds. Inadequate contract oversight or server outages can also prevent orders from executing as intended.

Information Risk

Large institutions may receive information before it becomes public. Their swift response to new polls or reports could erase any perceived advantage for other traders.

Volatility Risk

Unverified reports can trigger sharp changes in contract prices. False speculation may lead participants to close a position at a substantial loss before the facts are confirmed.

Risks from Crypto Infrastructure

Blockchain services such as Polymarket.com carry risks including smart-contract flaws, compromised wallets and stablecoins losing their peg. The networks used by these exchanges have no central authority that can restore USDC or reverse a fraudulent transaction.

Tax and Record-Keeping Issues

Trading on prediction markets may create tax obligations, as can other income-generating activities. Traders are responsible for understanding the rules where they live and how to report gains and losses.

Are Trading Profits Taxable?

Depending on the country, profits may be subject to capital-gains or income tax. Tax authorities classify this activity differently: some treat it like securities trading, others as financial income or gambling winnings. The classification affects the applicable tax treatment.

Keeping Records

Manual tracking is not the only option. Platforms may provide reports to help organize trades:

• Regulated Platforms: These may issue year-end tax documents, much like conventional brokerages. One U.S. example is Form 1099-B, which lists gains and losses.
• Decentralized Platforms: Blockchain transactions are permanently recorded. Users may download a CSV from the service or use cryptocurrency accounting software such as CoinTracker to organize the information.

Tax Reporting Considerations

When filing, check whether and how losses can be reported. In some tax systems, losses on incorrect forecasts may offset capital gains from winning contracts. Accurate records of losing “No” positions can matter when calculating net tax obligations.

A Practical Starting Guide

Getting started depends on the service. Regulated platforms resemble online brokerages, while blockchain-based markets require users to manage their own digital wallet.

Using a Regulated Platform (such as Kalshi and Polymarket US)

1. Register on the platform: Create an account with your email address and a strong password.
2. Complete the KYC process: Provide any requested identification, such as government-issued ID, so the platform can verify your identity and meet anti-money-laundering requirements.
3. Link a payment method: Connect a bank account using a service such as ACH, or add a debit card to fund your account.
4. Deposit funds: Transfer your initial trading amount from the linked account and check the processing time for your chosen method.
5. Choose a first contract: Find a market that interests you, review its order book and submit a buy or sell order.

Using a Blockchain Platform (such as Polymarket.com)

1. Set up a wallet: Install a compatible wallet such as MetaMask or Coinbase Wallet, then keep its recovery phrase secure.
2. Obtain collateral: Buy USDC through a trusted crypto exchange and transfer it to your wallet. Make sure you are using the correct network.
3. Connect your wallet: Visit the platform’s official website, choose its wallet-connection option and approve the request in the pop-up.
4. Deposit or bridge funds: When your USDC is on a different blockchain, use the platform’s bridge to transfer it to the network the market uses.
5. Choose a first contract: Browse the listings, read the settlement terms and use your wallet to sign the transactions needed to trade.

Frequent Mistakes for Beginners

New participants should watch out for several common mistakes:

• Emotional Trading: Buying because you favour a politician or support a team, rather than assessing the likelihood of an outcome, can lead to losses.
• Overlooking Liquidity: A contract with little activity may be difficult to sell if your view changes.
• Ignoring the Spread: Overlooking the bid-ask gap can add a substantial hidden cost to a trade.
• No Risk Management: Trading without a plan to manage exposure is a serious mistake in financial markets.
• Overlooking Opportunity Cost: Tying up significant funds in a long-term contract means that money cannot be used for nearer-term opportunities.
• Skipping the Rules: Not understanding a contract’s cancellation provisions may leave a position void if the result is ambiguous.

Basic Ways to Manage Risk

Risk management means using practices intended to preserve trading capital over time. Because future outcomes are uncertain, traders can structure positions so a few unfavourable results do not overwhelm the rest of the account.

Diversification means avoiding overconcentration in one position. Position sizing allocates a small, fixed share of total capital to any one contract. Hedging is another option: buying the opposing outcome may limit exposure if the market becomes more volatile.

This article was prepared in collaboration with Predictionist.com, a resource for prediction market insights and analysis.

Frequently Asked Questions About Prediction Market Platforms