iShares Russell Mid-Cap Growth ETF (iShares Russell Midcap Growth E) ETF

The index measures the performance of the mid-capitalization growth sector of the U.S. equity market, as defined by Russell. The fund generally will invest at least 80% of its assets in the component securities of its underlying index and may invest up to 20% of its assets in certain futures, options and swap contracts, cash and cash equivalents.