# Margin

*Markets & Instruments — Finicade finance glossary*

Collateral you post to back a leveraged or derivative position, covering potential losses. If the position moves against you, a margin call demands more — and failure to pay means it's closed out.

**Related terms:** [Margin Call](https://finicade.com/glossary/margin-call), [Leverage](https://finicade.com/glossary/leverage), [Mark to Market](https://finicade.com/glossary/mark-to-market)

**Taught in:** Hull Street — Margin, Settlement & Mechanics

Source: https://finicade.com/glossary/margin