Options Education

Option Tick Sizes Explained: Why Your Order Doesn’t Show Up in the NBBO (and How to Fix It)

Learn how option tick sizes affect your order's visibility in the NBBO. Understand penny pilot vs. non-penny classes and what to do when your limit order seems invisible.

Building an Options App? OPRA Fees & Licensing Explained

Wondering how OPRA fees impact your options trading app? This guide breaks down what developers need to know.

Missing Options Contracts — Why You Can’t Find Them

Understanding the common reasons traders can't find certain missing options contracts. The importance of knowing how options contracts are created and traded.

Complete List of Index Option Tickers

Get the full list of index option tickers traded on U.S. exchanges, including SPX, VIX, RUT, and more. Learn how to identify root symbols and query complete option chains using Market Data tools.

Understanding Differences in Implied Volatility and Greeks Between Broker Platforms

Why do implied volatility and Greeks differ across trading platforms? Explore how varying models, inputs, and calculation methods lead to discrepancies in IV and Greek values.

SPX vs SPXW Options — What’s The Difference?

Learn about the all differences in SPX vs SPXW options contracts and determine which contracts are best for you.

RUT vs RUTW Options — What’s The Difference?

Learn about the all differences in RUT vs RUTW options contracts and determine which options are best for your trading strategy.

NDX vs NDXP Options — What’s The Difference?

Learn all about the differences in NDX vs NDXP options contracts and determine which contracts are best for you.

What Are Non-standard Options?

Explore non-standard options: learn how corporate actions like splits change contracts, affect trading strategies, and impact markets.

How To Read An Option Symbol — Learn By Example

The best way to understand how to read a U.S. option symbol is with an real life example. Stock Ticker + YYMMDD + C/P + 8 Digit Strike Price.