The Russell Midcap Index measures performance of the 800 smallest companies (31% of total capitalization) in the Russell 1000 Index. As of 31 March 2017, the stocks of the Russell Midcap Index have a weighted average market capitalization of approximately $14.1 billion, median capitalization of $6.9 billion, and market capitalization of the largest company $58 billion. The index, which was launched on November 1, 1991, is maintained by FTSE Russell, a subsidiary of the London Stock Exchange Group.
Its ticker symbol is ^RMCC.