Docs

Glossary

The words this site uses, in plain terms.

Clarification
Text a venue adds to a market's rules to settle a case the rules didn't cover. Polymarket posts them under "Additional context" and clears the order book when it does. A clarification can change who gets paid even when it's described as an explanation.
Rules edit
Any change to the rules text that isn't labeled a clarification: a rewritten sentence, a removed condition, a new threshold.
Resolution source
The website, agency or data feed a market names as the authority for its outcome, like the AP for an election call. Changing it can change the answer.
End date and close time
When trading stops. On Polymarket the end date is a target and resolution can come later; on Kalshi the close time ends trading and the expiration time is the last moment the outcome can be decided.
UMA
The oracle Polymarket uses to settle markets. Anyone can propose an outcome by posting a bond; anyone can dispute it by posting a matching bond.
Proposal
The first step of settling a Polymarket market: someone tells UMA's oracle which outcome happened. RulesWatch records these as routine unless they're disputed.
Liveness
The challenge window after a proposal, two hours by default on Polymarket. If nobody disputes during liveness, the proposal stands.
Dispute
A challenge to a proposed outcome. The first dispute resets the proposal; a second one goes to a vote of UMA token holders, which takes about two days.
Settlement
When the market pays out. On Kalshi, the outcome is determined first, then settled after a short timer unless someone disputes it.
Determination
Kalshi's decision on a market's outcome, made after the market closes. It can be amended after review.
Edit window
On RulesWatch, the time between my last check that saw the old text and the check that found the new text. The edit happened inside it.
Value filled in
A template value written into the rules when a market opens, like the target price of a 15-minute Bitcoin market. Routine, so it's left out of the default feed.
Event
A group of related markets, like every candidate in one race. The same clarification often lands on all of them at once.
Yes price
The price of a Yes share in cents, which reads as the market's probability. 62¢ means the market gives it about a 62% chance.