Definition
Market resolution is the process of determining a contract’s final outcome once the underlying event concludes. A resolution source named in the contract’s rules decides YES or NO, which triggers payout of $1.00 to the winning shares and $0.00 to the losing side.
Market resolution is the moment a prediction market delivers its verdict. Every contract carries a published rule that says exactly which source will decide the outcome and when. Understanding resolution before you trade tells you what you are actually betting on and where the risk of an ambiguous result hides.
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What Market Resolution Means
Resolution is the step that converts an open market into a settled one. While a market is live, its price floats on the crowd’s changing estimate of the outcome. Once the event happens, the market is resolved to a single result – YES or NO for a binary contract – against the resolution source written into the contract’s rules.
The resolution source is the authority that decides. It might be an official election call by major news organizations, a final sports score, or a government data release. A well-written contract names this source precisely and spells out edge cases: what happens if an event is postponed, cancelled, or produces an unexpected outcome. Clear rules produce clean resolutions. Vague rules invite disputes.
Resolution is distinct from settlement. Resolution decides which side won; settlement is the mechanical payout that follows. On most platforms the two happen close together, but they are separate steps: the outcome is determined first, then the money moves.
Resolution in Practice
Take a hypothetical contract: “Will the national unemployment rate reported for a given month be below 4.0%?” The contract’s rule names the official statistics agency’s release as the resolution source and the release date as the resolution time.
- The market trades for weeks as participants estimate the coming number.
- On release day the agency publishes a rate of 3.8%.
- 3.8% is below the 4.0% threshold, so the market resolves YES.
- Every YES share is worth $1.00; every NO share is worth $0.00.
Because the rule named a single, unambiguous source and a clear threshold, the resolution is clean. A participant holding 50 YES shares bought at $0.55 paid $27.50 and receives $50.00 – a $22.50 profit. Contrast that with a poorly written contract that said only “will unemployment be low,” leaving “low” undefined. That ambiguity is exactly what a disputed resolution is made of.
Why It Matters for Traders
Reading the resolution rule before you trade is one of the most valuable habits a participant can build. The rule tells you precisely what determines the outcome, so you know what you are forecasting. Two markets that look similar can resolve very differently depending on their source and thresholds.
Resolution rules also flag where risk lives. Contracts with clear rules and well-defined sources rarely produce disputes. Contracts with fuzzy wording or unconventional sources carry more resolution risk, which can leave your capital tied up while a dispute process runs. Favoring cleanly written markets is a simple way to avoid that headache while you build experience.
Related Terms
- Settlement – the payout step that follows resolution.
- YES/NO Shares – the contracts that resolve to $1.00 or $0.00.
- Kalshi vs Polymarket – how two major platforms handle resolution.
Prediction markets involve financial risk. You can lose the full cost of any position.








