Is a 48¢ price the same as a 48% chance?
Roughly, yes, minus a little for the spread. A contract that pays $1 trading at 48¢ implies the market sees about a 48% chance.
Mechanics
How event forecasting actually works
Every Kalshi or Polymarket market takes a messy question, nails it to a deadline and a resolution source, and prices it as a single number between 1¢ and 99¢.
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The short version
A tradeable event needs four things: a precise question, a source of truth that settles it, a deadline, and a price that moves as money comes in. The price is the whole game. At 48¢, a Yes contract pays $1 if it resolves Yes, so the market is telling you it sees roughly a 48% chance. Your job is to decide whether that number is wrong.
Why it matters
Most people read a headline and form a vague opinion. A market forces the opinion into a number you can be graded on. That discipline, question, deadline, source, price, is what separates a take from a position, and it is the same loop whether you are risking real size or building a track record first.
What gets priced
- Will a specific bill pass before a stated date?
- Will a company ship a product or hit a metric by quarter-end?
- Will a data release like CPI or jobs come in above a set threshold?
What moves the number
Question wordingThe exact text decides what counts as Yes. Read it before you read the price. This is where retail gets wrecked.
Resolution sourceWho calls it, and from what data? A clean public source means fewer wait-it-resolved-how moments.
Time to expiryMore runway means more uncertainty left to resolve. Short-dated markets snap to news; long-dated ones drift.
Order flowPrices move when money shows up. New info matters only once someone trades on it.
FAQ
Do I need a finance background?
No. If you can read odds, you can read a market price. The edge comes from judgment, not jargon.
Why probabilities instead of just calling it Yes or No?
Because the honest answer to most questions is a number, not yes or no. Probabilities let you be right about uncertainty and get graded on it.