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Explore the essentials

FundamentalsWhat is a prediction contract?FundamentalsDoes 65¢ really mean a 65% chance?Market mechanicsRead the rules before the headlineMarket mechanicsThe price you see is not always the price you getMarket mechanicsCalculate the return, not just the payoutRisk & rulesThe risks a probability chart leaves out
INDEPENDENT KNOWLEDGE. BETTER PERSPECTIVE.

Understand the odds.
Know the rules.

Make sense of prediction contracts.
Clear explanations, practical tools, and trusted sources — from your first question to the fine print.

Free to explore Sources you can check No hype
An illustrative contract

WEATHER · A SIMPLE EXAMPLE

Will the temperature reach
80°F tomorrow?

64¢
Yes contract priceMarket-implied likelihood ≈ 64%
A yes share pays $1 if the event happens, $0 otherwise.
One event. Two outcomes.The rules turn a forecast into a contract.

SIMULATED EXAMPLE · EXCLUDES FEES · NOT A LIVE MARKET

A real weather contract also specifies the location, observation date, official source, and treatment of revisions. Read the rules →

CLARITY STARTS WITH THE SOURCE Primary-source research Plain-language explanations Independent perspectiveOur editorial standards

What are prediction contracts?

Prediction contracts, also called event contracts, have payoffs tied to a defined event. A common binary contract pays $1 if your side wins and $0 if it loses. Its price, written rules, and fees determine how it works. Learn the fundamentals

FIND YOUR STARTING POINT

A little context. A lot more clarity.

You don’t need a finance degree.
Just a good place to begin.

READ THE CONTRACT. NOT JUST THE ODDS.

The details make
the difference.

A price is only part of the picture. Start with these three questions every time.

Learn how markets work
01

What exactly counts as “yes”?

Check the event definition, deadline, and resolution source.

02

What will it actually cost?

Look beyond the price to fees, spreads, and liquidity.

03

What could go wrong?

Consider loss, access, custody, and settlement uncertainty.

LESS GUESSWORK. MORE UNDERSTANDING.

Your next question is a good one.

Find the concepts, definitions, and details that connect the dots.

Explore the glossary