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Event Contracts: What They Are & How to Trade Them in 2026

Updated March 2026 — The complete guide to CFTC-regulated event contracts: how they work, where to trade them, types, regulation, and strategies for US and global investors.

What Are Event Contracts?

Event contracts are CFTC-regulated binary financial contracts that pay out based on whether a specific, verifiable real-world event occurs. They are the official regulatory term for what most people call prediction market contracts.

An event contract works like a simple yes/no question with money attached. You take a position on whether something will happen — a Fed rate cut, a presidential election outcome, whether Bitcoin will exceed $100,000, or whether a hurricane will make landfall in a specific state. If you are right, your contract settles at $1.00. If you are wrong, it settles at $0.00.

The Commodity Futures Trading Commission (CFTC) classifies event contracts as a type of commodity derivative contract. Exchanges that list event contracts must be licensed as Designated Contract Markets (DCMs) or as Swap Execution Facilities (SEFs). Kalshi became the first CFTC-licensed event contract exchange in 2020 — a landmark approval that opened the door for the modern US prediction market industry.

By early 2026, event contracts have grown into a multi-billion-dollar market. Kalshi alone processes over $8.5 billion in 30-day trading volume, while Polymarket adds another $2.7 billion. Total US event contract trading volume has exceeded $50 billion since Kalshi's launch.

Brief History of Event Contracts

Event contracts have deeper roots than most people realize. The Iowa Electronic Markets (IEM), run by the University of Iowa since 1988, pioneered academic prediction markets. The Hollywood Stock Exchange launched entertainment prediction markets in the 1990s. Intrade (2001–2013) was the most prominent commercial prediction market before it shut down due to regulatory pressure.

The modern US event contract industry began in earnest in 2020 when Kalshi received CFTC approval as a DCM — the first company to successfully navigate the regulatory framework. This paved the way for Robinhood's event contracts (2024), Polymarket's CFTC designation (late 2025), and growing mainstream adoption.

How Event Contracts Work

Event contracts have a straightforward structure that resembles a simple wager, but with the full framework of regulated financial derivatives. Here is the complete mechanics.

Contract Structure

Every event contract defines three things:

1. The resolution question: A specific, unambiguous question about a real-world outcome (e.g., "Will the S&P 500 close above 5,500 on March 31, 2026?")
2. The resolution source: An official, verifiable data source (e.g., Bloomberg, official government data, NOAA)
3. The expiration date: When the contract settles

Pricing and Probability

Event contracts are priced between $0.01 and $0.99, reflecting the market's collective probability estimate of the event occurring. A contract priced at $0.60 means the market believes there is approximately a 60% chance the event happens. This is the fundamental insight: the price is the probability.

Prices change continuously as new information arrives — polls, economic data, news events, and shifts in sentiment all move contract prices. This price discovery function is one of the most valuable aspects of event contract markets.

Yes and No Contracts

For every event contract, there are two complementary positions: Yes (you think the event will happen) and No (you think it will not). Yes + No contract prices always sum to approximately $1.00, minus the exchange fee spread.

Settlement

At expiration, contracts settle based on the official outcome:

• Event occurs: Yes contracts settle at $1.00, No contracts settle at $0.00
• Event does not occur: Yes contracts settle at $0.00, No contracts settle at $1.00

Settlement is automatic and handled by the exchange. CFTC-regulated exchanges like Kalshi resolve contracts using pre-specified, publicly disclosed data sources with no discretion — eliminating the ambiguity that plagued early prediction markets.

Trading Before Expiration

You do not have to hold an event contract to expiration. Like stocks or futures, you can sell your position at any time before the contract resolves. This creates significant flexibility:

• Lock in profits early: If you bought Yes at $0.30 and the contract now trades at $0.75, sell to capture the $0.45 gain
• Cut losses: If the contract moves against you, sell before it goes to zero
• React to news: Breaking news often creates sharp price moves — active traders can profit from these swings

How Returns Work

Event Contracts vs Prediction Markets vs Binary Options

These three terms are often confused. Here is the precise distinction.

Event Contracts vs Prediction Markets

The terms are nearly synonymous in practice. Event contracts is the regulatory/legal term used by the CFTC and financial industry. Prediction markets is the colloquial term used by academics, media, and the general public. When the CFTC writes a rule, it says "event contracts." When a journalist writes an article, they say "prediction markets." Both describe the same underlying product.

Event Contracts vs Binary Options

This distinction is critical, especially for US investors. Many people conflate event contracts with binary options, but they are fundamentally different products with very different regulatory histories.

Event Contracts vs Futures and Options

Traditional commodity futures and options are also CFTC-regulated, but they differ from event contracts in important ways:

• Settlement: Futures can involve physical delivery of a commodity; event contracts always settle in cash
• Underlying: Futures track commodity prices (oil, gold, corn); event contracts track binary event outcomes
• Complexity: Event contracts are simpler — just Yes or No, not Greeks or expiry curves
• Leverage: Futures often use significant leverage; event contracts are fully collateralized (max loss = price paid)

Where to Trade Event Contracts

In 2026, US investors have three primary options for trading event contracts. Each serves a different audience.

1. Kalshi — Best for US Beginners

Kalshi is the largest CFTC-regulated event contract exchange in the US, processing over $8.5 billion in 30-day volume. Founded in 2018 and approved as a DCM in 2020, Kalshi pioneered the regulated event contract market.

Best for: US beginners, tax-conscious traders, people who want FDIC-eligible deposits without touching crypto. Kalshi's USD-based system, automatic tax forms, and clean mobile app make it the most approachable on-ramp for new event contract traders.

Main trade-off: Higher fees than Polymarket and fewer markets. The 1–7 cent per contract fee adds up on high-frequency or high-volume trading.

2. Robinhood Event Contracts — Most Accessible

Robinhood added event contracts to its platform in 2024, making them accessible to its 24 million existing users. This was a landmark moment for mainstream adoption — for the first time, ordinary retail investors could trade event contracts through the same app they use for stocks and ETFs.

Best for: Existing Robinhood users who want to add event contract trading without creating a new account. The integration with existing brokerage accounts is a major convenience advantage.

Main trade-off: Fewer markets than Kalshi or Polymarket. Robinhood's event contract offering is curated and limited compared to dedicated platforms. For deeper market access, serious traders use Kalshi or Polymarket alongside Robinhood.

For a detailed comparison, see our Kalshi vs Robinhood guide.

3. Polymarket — Most Markets, Lowest Fees

Polymarket is the world's largest prediction market by number of active markets (600+) and offers near-zero trading fees. Originally a crypto-native platform (USDC on Polygon blockchain), Polymarket received CFTC regulatory designation in late 2025, bringing it into the regulated event contract category.

Best for: Experienced traders who want the widest market selection, lowest fees, and API access. Polymarket's open API makes it the platform of choice for quantitative and algorithmic event contract traders.

Main trade-off: Requires crypto (USDC) — not suitable for investors who want to avoid cryptocurrency. No automatic tax reporting means you must track and self-report gains. See our Polymarket for US users guide for setup details.

Platform Comparison: Event Contract Exchanges

Types of Event Contracts

Event contracts span a wide range of categories. Understanding each category helps you identify where you may have an informational edge.

1. Political & Election Event Contracts

Political contracts are among the most actively traded event contracts. They gained massive mainstream attention during the 2024 US Presidential election, when prediction market odds diverged significantly from traditional polling averages — and ultimately proved more accurate.

Common political event contract types:

• Presidential election outcomes (winner of each state, overall winner)
• Congressional elections (Senate majority, House control)
• Gubernatorial and mayoral races
• Supreme Court decisions
• Legislative votes (will a specific bill pass?)
• Cabinet appointments and confirmations
• International elections (UK, France, Germany, etc.)

2. Economic Event Contracts

Economic contracts track measurable macroeconomic outcomes. These are popular with traders who follow Federal Reserve policy, inflation data, and employment reports. They provide a way to express views on economic data that traditional financial markets may not capture precisely.

• Federal Reserve decisions: Will the Fed raise, cut, or hold rates?
• Inflation (CPI): Will CPI exceed X% in month Y?
• Employment: Will unemployment fall below X%?
• GDP: Will GDP growth exceed X% in Q1?
• Earnings: Will a company beat/miss earnings estimates?
• Economic indicators: ISM, PMI, retail sales, housing starts

Economic contracts are particularly valuable because they allow precise bets on data releases that happen at specific times — something difficult to replicate with traditional derivatives without significant complexity.

3. Financial Market Event Contracts

These contracts track outcomes in financial markets — whether specific assets will hit price targets or ranges by a certain date.

• S&P 500: Will the index close above/below X on date Y?
• Bitcoin: Will BTC exceed $X by end of quarter?
• Gold, oil, commodities: Price range contracts
• Interest rates: Will the 10-year Treasury yield exceed X%?
• Corporate events: Will a company's stock hit X?

4. Weather Event Contracts

Weather contracts are a niche but growing category. They allow trading on meteorological outcomes — useful for both speculation and hedging for businesses exposed to weather risk (agriculture, energy, construction).

• Will a named hurricane make landfall in Florida this season?
• Will New York City's total February snowfall exceed 20 inches?
• Will the US experience record high temperatures in July?
• Will El Niño conditions persist through Q2?

5. Crypto & Technology Event Contracts

Technology and cryptocurrency contracts have exploded in popularity as crypto prices have become mainstream. These include:

• Crypto price targets: Will Bitcoin hit $150K? Will Ethereum exceed $5K?
• Protocol events: Will a specific blockchain upgrade happen by date X?
• Tech company milestones: Will Apple launch a specific product? Will a company complete an IPO?
• AI events: Will GPT-5 be released by Q3? Will a specific AI benchmark be surpassed?

6. Sports Event Contracts

Sports prediction markets have grown rapidly, with contracts on major US and international sports events:

• Super Bowl winner
• NBA Finals outcome
• World Series winner
• NCAA March Madness brackets
• FIFA World Cup results
• Individual player milestones

For more on sports markets, see our sports prediction markets guide.

Event Contracts Regulation

Understanding the regulatory landscape is essential for anyone trading event contracts in the US. The rules have evolved rapidly since 2020.

The CFTC and the Commodity Exchange Act

The CFTC (Commodity Futures Trading Commission) is the primary regulator of event contracts in the US. The CFTC regulates commodity derivatives — including futures, options, and swaps — under the Commodity Exchange Act (CEA). Event contracts are classified as commodity contracts because their underlying “commodity” is the outcome of a defined event.

For an exchange to legally offer event contracts to US customers, it must be designated as a:

• Designated Contract Market (DCM): The highest tier, like Kalshi and the CME Group. Full regulatory framework applies.
• Swap Execution Facility (SEF): For swaps and certain derivatives

What CFTC Regulation Means for Traders

Trading on a CFTC-regulated event contract exchange provides several important protections:

• Segregated customer funds: Exchanges must hold customer deposits in segregated accounts separate from operating funds
• Capital requirements: Exchanges must maintain minimum net capital
• Market surveillance: Exchanges must monitor for manipulation and insider trading
• Standardized resolution: Contract resolution rules must be disclosed in advance and followed consistently
• Audit requirements: Regular CFTC audits and examinations
• AML/KYC: Anti-money laundering and know-your-customer compliance required

The Kalshi Lawsuit: A Turning Point

In 2024, the CFTC attempted to block Kalshi from listing political event contracts, arguing they were contrary to the public interest. Kalshi sued the CFTC, and the federal courts ruled in Kalshi's favor. This decision was a landmark: it established that political event contracts are legal under US law, opening the door for election prediction markets on regulated exchanges.

The ruling directly led to a surge in event contract trading volume during the 2024 elections and established the legal precedent that event contracts have broad First Amendment and free market protections.

State-Level Restrictions

While federal law permits event contracts on CFTC-regulated exchanges, some state-level gambling or securities regulations may apply. Kalshi is currently available in 42+ US states. A small number of states (including Nevada and New York for certain contract types) have additional restrictions. Always check your state's specific availability before opening an account.

The Gambling Question

Are event contracts gambling? This question has significant legal and regulatory implications. The answer from both the CFTC and the courts is: no, when traded on regulated exchanges. The key distinctions:

• Event contracts are exchange-traded financial derivatives, not casino games
• They serve a legitimate economic purpose (price discovery, risk transfer)
• CFTC regulation provides investor protections absent in gambling
• The value of event contracts is based on publicly available information, not randomness

For a deeper analysis, see our guide on are prediction markets gambling?

Tax Treatment

The tax treatment of CFTC event contracts has not been definitively ruled on by the IRS. Current practice:

• Kalshi reports gains on 1099-MISC (profits >$600) and 1099-INT forms
• Most tax professionals treat gains as ordinary income or short-term capital gains
• There is an argument that CFTC-regulated contracts may qualify for Section 1256 treatment (60% long-term / 40% short-term capital gains), which would be more favorable

See our detailed prediction market taxes guide for the full picture.

Event Contracts Trading Strategies

Profitable event contract trading requires more than just picking winners. The best strategies focus on finding mispriced probabilities — situations where the market's implied probability diverges from the true probability of an event.

Strategy 1: Fading Overreaction

Markets often overreact to news. A negative headline can temporarily push a contract to extreme prices even if the underlying probability has not changed dramatically. Look for contracts where the price has moved sharply on thin volume or unclear information.

Strategy 2: Information Advantage on Niche Events

Event contract markets are most efficient on widely followed events (Presidential elections, major Fed decisions). They are often less efficient on niche events — local elections, specific economic subcategories, or lesser-known tech events. Traders with deep domain knowledge in a niche can find persistent edges.

For a full breakdown of trading approaches, see our prediction market strategies guide.

Strategy 3: Arbitrage Between Platforms

The same event contract may trade at different prices on Kalshi and Polymarket simultaneously. If Kalshi prices a "Yes" at $0.58 while Polymarket prices the same event at $0.52, buying on Polymarket and selling on Kalshi (or vice versa) locks in a nearly risk-free spread.

Practical caveats: fees, capital requirements, and settlement timing must all be factored in. For details, see our prediction market arbitrage guide.

Strategy 4: Hedging a Portfolio

Sophisticated investors use event contracts to hedge real-world risks. Examples:

• A company with significant energy exposure buys weather event contracts to offset hurricane/cold snap risk
• A trader long interest-rate-sensitive stocks buys "Yes" contracts on Fed cuts as a hedge
• A media company hedges election-driven advertising volatility through political event contracts

Strategy 5: Market-Making (Advanced)

On platforms with open APIs like Polymarket, sophisticated traders can act as market makers — posting both Yes and No orders and earning the bid-ask spread. This requires significant capital, fast execution, and strong probability modeling but can generate consistent income independent of directional views.

Strategy 6: Probability Aggregation

One of the most evidence-backed strategies is combining multiple information sources into a probability estimate, then comparing to the market price. Use polling aggregators, economic models, and base rates to form your own probability estimate. If your estimate diverges from the market price by more than the fee cost, there may be a tradeable edge.

For more advanced techniques, see our how to make money on prediction markets guide.

Risks and Considerations

Event contracts can be highly rewarding, but they carry specific risks that every trader should understand before putting real money at stake.

The Binary Risk

The most fundamental risk of event contracts is binary: you either win or lose. Unlike stocks that decline partially, an event contract on a losing side goes to exactly zero. This means position sizing is critical. Experienced traders typically risk no more than 2–5% of their event contract portfolio on any single trade.

Liquidity Risk

Popular event contracts (Presidential elections, Fed decisions) have deep liquidity with tight spreads. Niche contracts (local elections, obscure economic indicators) may have wide spreads or insufficient volume to exit a position at a fair price. Always check the order book depth before entering a large position.

Resolution Risk

Even on regulated exchanges, resolution disputes can arise on ambiguously worded contracts. Kalshi and other regulated exchanges publish detailed resolution specifications in advance — always read the contract terms before trading. If a contract question is poorly worded, there is a risk the resolution does not match your expectation.

Bias Risk

Psychological research consistently shows that people overestimate the probability of outcomes they want to happen. Political traders often overpay for contracts on their preferred candidate. Sports fans overpay for their favorite team. Be aware of your personal biases and try to evaluate contracts on pure probability, not preference.

Concentration Risk

Do not put too much capital into a single event or category. Major elections can move multiple correlated contracts simultaneously. A diversified approach across event types (economic, political, weather) reduces correlation risk.

Taxes on Event Contracts

Tax treatment of event contracts is an evolving area. Here is what we know as of 2026.

Kalshi and Robinhood (USD Platforms)

Kalshi issues 1099-MISC forms for trading profits over $600 and 1099-INT forms for interest earned. Robinhood follows similar reporting standards as part of its standard brokerage account. Most traders and tax professionals treat these gains as ordinary income.

However, since Kalshi contracts are CFTC-regulated as commodity contracts, there is a legal argument they qualify as Section 1256 contracts — which receive the favorable 60/40 long-term/short-term capital gains split. This is not yet settled law, and you should consult a tax professional.

Polymarket (USDC/Crypto Platform)

Polymarket does not issue tax forms. You are responsible for tracking all trades and self-reporting gains. Additionally, USDC has tax implications: converting USD to USDC and back may create reportable events, and trading on Polymarket using USDC that has appreciated in value adds another layer of complexity. See our prediction market taxes guide for full details.

Key Tax Principles

• Keep detailed records of every trade: entry price, exit price, date, number of contracts
• Track deposits and withdrawals on all platforms
• Consider using crypto tax software (Koinly, TaxBit) for Polymarket trades
• Consult a CPA familiar with derivatives and cryptocurrency if trading significant sums

Frequently Asked Questions

Related Guides

See also: Robinhood event contracts — learn more about Robinhood event contracts.