Trading

Fill

By Ryan Silk & Lawrence Polatchek · Reviewed April 2026 · Options Trading Glossary

Order execution

What is Fill?

Fill When your order is executed. A fill means your trade went through. Partial fills occur when only some contracts execute.

Complete Definition

When your order is executed. A fill means your trade went through. Partial fills occur when only some contracts execute.

Related Terms

Order Types Limit Order
AV
Written by
ApexVol Research Team
Quantitative options research
All calculations use live ORATS institutional 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 ORATS data change. Last revised 2026-05-12. How we research →

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