Trading
Margin
Collateral for positions
What is Margin?
Margin Collateral required to hold certain positions. Naked option sellers need margin. Defined-risk strategies like spreads require less margin than naked positions.
Complete Definition
Collateral required to hold certain positions. Naked option sellers need margin. Defined-risk strategies like spreads require less margin than naked positions.
Related Terms
AV
Written by
ApexVol Research Team
Quantitative options research
All calculations use live institutional-grade data — the same source used by professional volatility desks.
RS
Technical reviewer
Ryan Silk, ApexVol Founder
Reviewed for technical accuracy
10+ years trading options. Built ApexVol's pricing engine, Greeks model, and IV-rank methodology.
This guide is updated as market conditions and institutional data change. Last revised 2026-05-12.
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