> For the complete documentation index, see [llms.txt](https://docs.gammaswap.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.gammaswap.com/markets-and-trading/order-book.md). # Order Book The order book works similar to Central Limit Order Books (CLOBs) found on many centralized exchanges, except of course that settlement is on-chain. Orders are matched in price-time priority with a tick size of 0.1 cent. Cancel orders have priority. There is one order book per asset, epoch, and strike price (price to beat). ### Different than other prediction markets Unlike most on-chain prediction markets, GammaSwap does not use the Conditional Token Framework (CTF). The order book supports margin trades and tracks one contract, which people can either long or short. This reduces complexity for both takers and makers. More in [Contracts](/markets-and-trading/contracts.md) here. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter: ``` GET https://docs.gammaswap.com/markets-and-trading/order-book.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.