#7: PowerShares QQQ Trust
Assets Under Management: $32.3 billion
The PowerShares QQQ Trust (NYSE:QQQ) holds all of the component securities of the Nasdaq-100 Index, making it a tech-heavy passively managed ETF. It has an expense ratio of just 0.2%, and is up just over 17% to march in lockstep with the Nasdaq-100.
Unsurprisingly, the fund is overweight in Apple (NASDAQ:AAPL) — just like its price-weighted Nasdaq benchmark — with almost 20% of the holdings focused in this tech giant.