Trading
Short
Selling a position you don't own
What is Short?
Short Selling something you don't own, creating an obligation. Short calls profit when price falls. Short puts profit when price rises. Short positions have obligations.
Complete Definition
Selling something you don't own, creating an obligation. Short calls profit when price falls. Short puts profit when price rises. Short positions have obligations.
Related Terms
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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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