Private company

Russell Midcap Index

US mid-cap stock market index

The Russell Midcap Index is a stock market index that measures performance of the 800 smallest companies (approximately 27% of total capitalization) in the Russell 1000 Index. As of 30 November 2022, the stocks of the Russell Midcap Index had a weighted average market capitalization of approximately $22.64 billion, median market capitalization of $9.91 billion, and the market capitalization of the largest company is $54.74 billion.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

The Russell Midcap Index is a stock market index that measures performance of the 800 smallest companies (approximately 27% of total capitalization) in the Russell 1000 Index. As of 30 November 2022, the stocks of the Russell Midcap Index had a weighted average market capitalization of approximately $22.64 billion, median market capitalization of $9.91 billion, and the market capitalization of the largest company is $54.74 billion.2

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2