How to control which prediction markets your customers see
Every operator has markets it will not carry. The question is whether switching one off really switches it off, or only hides it from a list while the trading path stays open.

In this article 4 sections
Every operator has markets it will not carry. Some are ruled out by a licence, some by a market's politics, some by a brand decision, and some because a sportsbook would rather not list a contract beside its own line on the same game. The problem is not deciding what to switch off. It is being sure that switching it off really does.

Why hiding a market is not the same as removing it
The weak version of a category control is a filter on the list. The market disappears from the screen, but the catalogue still sends it, the quote path still prices it, and anybody who posts its identifier directly can still trade it. That is a display preference, not a control, and it is the version that fails an audit.
How Parity enforces what you offer
- By category
- Politics, economics, finance, crypto, weather, culture, technology, sport and the rest each carry one canonical category, and each can be on or off for your operator.
- Sport by sport
- Sport can stay on, be switched off entirely, or be narrowed sport by sport, so soccer can be offered while football is not. Esports is a separate category with its own switch.
- By region and jurisdiction
- Rules can differ by region, and a customer’s recorded jurisdiction decides a jurisdiction-enforced offering, down to state or province where that matters.
- By customer
- An individual customer can be restricted further than your account. A customer rule can only ever narrow what you carry, never widen it.
The same rule is enforced on the catalogue, the live price stream, the quote and the order. A market you are not offered is never sent to the frame, rather than sent and hidden, and an order for it is refused even if someone posts its identifier directly. The rules that apply to your account are visible, read only, in your operator portal.
Configuration, not a code change
None of this needs your developers. Offering rules are configuration on your operator account, agreed with Parity rather than shipped by your team, so a change of policy, a new licence condition or a decision to keep a category off for an election period is a settings change rather than a release. The embedded surface and the API read the same rules, so a market you switch off disappears from both together.
What the rules are, and are not
The rules apply what you decide about your own licence. They are a routing control you configure, not a compliance determination, and they do not encode any country's law. Your KYC, responsible-gaming controls and customer relationship stay with you.
To decide what to switch off in the first place, start with prediction market compliance by country. For an operator in several markets, launching in more than one country shows how the rules combine with language and region. The sportsbook view, including sport next to your own book, is on prediction markets for sportsbooks.



