Learn what a prediction market price actually means, how to validate odds before acting, and the mistakes new traders make most often.
Validation Checks
5
Common Mistakes
4
Price Ranges
3
Read Time
7 min
The key takeaway from this page
Understanding what prices mean
In a prediction market, the price is the market's probability estimate. A contract priced at 65¢ means traders are collectively pricing YES at roughly 65%. A price of 15¢ means roughly 15%. After a contract settles, see how markets settle for the full resolution process.
Example: 65¢ price = ~65% market probability
Important caveat: The price is the market's best live estimate — not a guarantee. Markets can be wrong, thin, stale, or briefly distorted by one large order.
Quick visual reference
An outcome with limited supporting evidence and real barriers before the deadline.
A close election before polls close, or a vote where key members still haven't declared.
A clear front-runner after a decisive win or another strong confirming event.
Key drivers of price movement
Prices move when new information hits the market — a data release, a poll shift, a court ruling, or even one large order in a thin book. Not every move means the same thing. Understanding why the price moved matters just as much as noticing that it moved. Our why markets move guide goes deep on this.
See the full guide: Why Prediction Markets MoveRun these before treating price as signal
Run these checks before treating a market price like useful signal.
Check the resolution rules
Does the contract resolve the way you think it does? Resolution wording often differs from the market headline.
Check the volume
Low volume means the price may not reflect broad consensus — one large order might have moved it.
Check the timestamp
When was this price last updated? Stale prices are unreliable, especially around fast-moving events.
Check related markets
Do other platforms agree? A big gap is worth investigating, not something to trust blindly.
Check the platform rules
Kalshi, Polymarket, and Robinhood can use different resolution sources. The same headline can settle differently across platforms.
Avoid these beginner pitfalls
Treating 90¢ as certain
Even 90¢ contracts lose roughly 10% of the time. Markets are probability estimates, not guarantees.
Ignoring volume
A 10-contract market is not reliable signal. Low-volume prices can be moved by one participant.
Assuming arbitrage on price gaps
Contract terms can differ across platforms. A price gap is worth investigating, not assuming is free money.
See Contract Compare →Treating old prices as current
Prediction market prices change fast around news events. Always check when the price was last updated before acting.
4 common questions answered
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