Prediction Market
A prediction market is a market where participants trade contracts whose value depends on the outcome of a future event. The event could involve economics, politics, sports, cryptocurrency, weather, or another measurable outcome. The CFTC describes products traded on prediction markets as frequently being called event contracts.
✦ Key Insight
Prediction markets turn opinions about future events into market prices. Instead of asking people what they believe will happen, the market lets participants financially express those beliefs through buying and selling. Traders often interpret prices as estimates of collective market expectations. Prediction markets can also be used for forecasting and, depending on the contract and regulatory framework, hedging certain event risks.
✕ Common Misconceptions
Treating market prices as objective probabilities
Ignoring settlement rules
Trading illiquid markets
Assuming every prediction market has the same regulatory status
Confusing prediction markets with opinion polls
Ignoring information advantages
Detailed Explanation
How It Works
A simple market might ask:
“Will Bitcoin close above $150,000 on December 31?”
Participants trade contracts representing possible outcomes.
A YES contract might trade at $0.65 while a NO contract trades at roughly the complementary value, depending on the market structure.
When the event is resolved according to predetermined rules, winning contracts settle according to the contract terms.
FAQs
Are prediction markets always gambling?
Their legal and regulatory classification varies by product and jurisdiction.
Can prediction markets be wrong?
Absolutely.
Why use prices as probabilities?
Prices aggregate the willingness of market participants to buy and sell based on their expectations.
In Practice
Dig Deeper
Event Contract
An event contract is a financial contract whose payout depends on whether a specified event or outcome occurs. Event contracts are commonly associated with prediction markets. The CFTC specifically discusses prediction markets and event contracts within US derivatives regulation.
Implied Probability
Implied probability is the probability that traders infer from the market price of an outcome contract. In simple prediction markets where a winning share settles at $1, a share trading around $0.65 is often interpreted as approximately a 65% market-implied chance of the outcome occurring.
Settlement
Settlement is the process of finalising a trade or contract and transferring the resulting value to the appropriate participants. In prediction markets, settlement generally occurs after the market's outcome has been resolved.