# Margin Call

*Markets & Instruments — Finicade finance glossary*

A demand to top up your collateral when a leveraged position has lost value. Can't meet it, and the position is liquidated — often at the worst possible moment, which is how forced-selling spirals begin.

**Related terms:** [Margin](https://finicade.com/glossary/margin), [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-call