> ## Documentation Index
> Fetch the complete documentation index at: https://docs-polymarket-us.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Trading Limits

> Understand Polymarket US trading limits

Polymarket US does not set trading size limits. You can place any order size, but it will only fill if there are **matching buy or sell orders** at that price.

Large orders may result in partial fills or fill at different prices if there are not enough matching orders at one level. Before placing a large order, review the order book to see available prices and sizes.