Use the “List difference” tool

Last updated: June 9, 2025

What it is: The List difference tool is a tool that finds items in the first list that are not present in the second list, helping you identify what's unique or excluded.

What it’s for: Use this when you want to remove certain items from a broader list—such as excluding stocks from a specific index or filter group.

Example:"Show me stocks in the Russell 1000 that aren't in the S&P 500."

Key features:

  • Performs a list subtraction operation

  • Helps identify differences between universes

  • Commonly used for filtering or custom universe construction