Event contract vs. prediction market
The two terms are closely related. An event contract is the instrument — the specific derivative traded. A prediction market is the venue where event contracts trade and, more broadly, the exchange design that surfaces probability estimates from the resulting prices. Every prediction market trades event contracts; not every event contract trades on a market called a prediction market (some trade on futures exchanges as "regulatory-approved event contracts").
Event contract vs. futures contract
A futures contract obligates the two parties to deliver or receive an underlying asset at a specified price and time. Futures track continuous price series — oil, wheat, S&P 500 — and their payoffs vary linearly with the underlying. An event contract has a binary or discrete payoff triggered by whether an event occurs. Futures are typically P&L-linear in the underlying; event contracts are P&L-binary in the event.
Binary and multi-outcome event contracts
The simplest event contract is binary: a YES contract pays the face value if the event occurs, zero otherwise. Multi-outcome event contracts extend the design: for a market with N mutually exclusive outcomes, the sum of the N contract prices equals the face value, preserving each price's interpretation as an implied probability. Scalar (continuous) event contracts pay a linear function of a reported real-world value — useful for hedging exposure to indicators rather than binary events.
How event contracts are regulated
Regulation varies materially by jurisdiction.
- United States. Event contracts on CFTC-registered Designated Contract Markets (DCMs) are federally regulated. Kalshi is the best-known DCM specializing in event contracts. Non-DCM event contracts fall under the CFTC's general jurisdiction and have historically faced enforcement.
- European Union. Event contracts fall under MiFID II if structured as derivatives, or under national gambling regulation if structured as fixed-odds bets. Case-by-case classification matters.
- United Kingdom. Betfair-style exchanges operate under Gambling Commission licensing. CFD-style event contracts are FCA-regulated.
- Asia (varies). Singapore's Gambling Regulatory Authority explicitly restricted access to Polymarket in January 2025. Japan's Financial Services Agency has begun engaging with prediction market operators. Other Asian jurisdictions have not yet established explicit frameworks; users typically trade on decentralized platforms and are responsible for local compliance.
What is a Designated Contract Market (DCM)?
A Designated Contract Market is a US CFTC-registered exchange authorized to list futures and event contracts. Operating as a DCM requires meeting 23 core principles covering financial integrity, market surveillance, and consumer protection. The DCM framework provides a legal path for listing event contracts in the United States that would otherwise face gambling-law challenges.
How does event contract settlement work?
Each contract specification names a resolution source and a resolution time. Common resolution sources include:
- Official statistical releases (BLS, Fed, BOJ, PBoC, and similar)
- Court and regulator filings
- Election commission announcements
- Primary news reports from a named outlet
- On-chain data (block explorers, DEX aggregators, oracle networks)
When the resolution time arrives, the platform reads the outcome, publishes it with a verifiable proof (a link, a hash, a screenshot, a transaction ID), and pays the winning positions. Contested outcomes move through a dispute window before final settlement — see the guide on prediction market oracles for how disputes are resolved in practice.
Why has event contract volume grown so quickly in 2024–2026?
Three drivers combined to push event contract volume from a research curiosity to a mainstream asset class:
- Explicit US regulatory pathway. CFTC recognition of election and macro event contracts on DCMs gave institutions and news organizations a legal way to use the data.
- 2024 US election. Polymarket alone processed more than $3 billion in election-related event contract volume, drawing mainstream press attention across CNN, WSJ, Bloomberg, and Reuters.
- Hedging demand. Event risk — elections, rate decisions, regulatory rulings — has become a larger driver of macro returns, and portfolio managers have looked for direct hedges.