If you're interested in broad exposure to the Mid Cap Growth segment of the US equity market, look no further than the iShares Russell Mid-Cap Growth ETF (IWP) , a passively managed exchange traded fund launched on 07/17/2001.The fund is sponsored by Blackrock. It has amassed assets over $19.54 billion, making it the largest ETFs attempting to match the Mid Cap Growth segment of the US equity market.Why Mid Cap GrowthMid cap companies, with market capitalization in the range of $2 billion and $10 billion, o ...