Basics

Exchange-Traded Fund (ETF)

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

Fund trading on exchanges like a stock

What is Exchange-Traded Fund (ETF)?

Exchange-Traded Fund (ETF) A fund that trades on stock exchanges like a stock, typically tracking an index, sector, or asset class. Popular options underlyings like SPY (S&P 500), QQQ (Nasdaq 100), and IWM (Russell 2000) are ETFs. ETF options offer portfolio-level exposure with options flexibility.

Complete Definition

A fund that trades on stock exchanges like a stock, typically tracking an index, sector, or asset class. Popular options underlyings like SPY (S&P 500), QQQ (Nasdaq 100), and IWM (Russell 2000) are ETFs. ETF options offer portfolio-level exposure with options flexibility.

Example

Instead of buying options on 500 individual stocks, you trade SPY options to get broad S&P 500 exposure.

Related Terms

Index Underlying Stock

Written by

ApexVol Research Team

Quantitative options research

All calculations use live ORATS institutional data — the same source used by professional volatility desks.

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 →

Want to Learn More?

Explore our educational resources and analytics tools to deepen your understanding.

Learning Center

Earnings Per Share (EPS) All Terms European Option

Learn Options Trading

Understanding Options Greeks Implied Volatility Guide How to Trade Options 0DTE Options Trading Options Glossary Strategy Guides Learning Center

Explore More Tools

Options Chain Real-time Greeks Greeks Heatmap Visual analysis Volatility Lab IV analysis Strategy Simulator Test strategies IV Intelligence 3D visualization Options Screener Find opportunities Historical Data Past snapshots Earnings Historical moves & IV 0DTE Analytics Same-day expiration