The iShares S&P SmallCap 600 (Ticker: IJR) seeks investment results that correspond generally to the performance, before fees and expenses, of the S&P SmallCap 600. The index is maintained by the S&P Index Committee, a team of Standard & Poor's economists and index analysts, who meet on a regular basis. The goal of the Index Committee is to ensure that the index remains an accurate measure of small sized companies, reflecting the risk and return characteristics of the broader small cap universe on an on-going basis. The S&P Index Committee follows a set of published guidelines for maintaining the index. Criteria for index inclusion include: market cap between $300 million to $2 billion (can be adjusted), minimum public float of 50%, ratio of annual dollar value traded to market cap for the company should be 0.30 or greater, constituents must be operating companies (no closed-end funds, ETFs, or holding companies).