Private company

Russell Top 50 Index

American stock market index

The Russell Top 50 Index (formally, the Russell Top 50 Mega Cap Index) is a megacap stock market index that measures the performance of the largest companies in the Russell 3000 Index. It includes approximately 50 of the largest securities based on a combination of their market cap and current index membership and represents approximately 40% of the total market capitalization of the Russell 3000.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

  • Listed onNew York Stock Exchange1
  • Kind of organizationStock market index1

The Russell Top 50 Index (formally, the Russell Top 50 Mega Cap Index) is a megacap stock market index that measures the performance of the largest companies in the Russell 3000 Index. It includes approximately 50 of the largest securities based on a combination of their market cap and current index membership and represents approximately 40% of the total market capitalization of the Russell 3000.2

Subsidiaries and ownership

Owners

From Wikidata.1

Sources

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