> For the complete documentation index, see [llms.txt](https://yubit.gitbook.io/yubit/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://yubit.gitbook.io/yubit/derivatives-trading/futures-faq/positions-and-margin.md).

# Positions & Margin

Managing margin is crucial to keeping your positions safe from liquidation. This section covers how position margin is calculated, why it may change, and common reasons why you might not be able to open a trade even if you have funds.