ETF Spotlight on PowerShares QQQ Trust ETF (NYSEArca: QQQ), part of an ongoing series.

Assets: $32.3 billio.

Objective: The PowerShares QQQ fund is based on the Nasdaq-100 Index, which consists of 100 of the largest domestic and international nonfinancial companies listed on the NASDAQ based on market capitalization.

Holdings: Top holdings include: Apple (NasdaqGS: AAPL) 18.9%, Microsoft (NasdaqGS: MSFT) 8.9%, Google (NasdaqGS: GOOG) 5.2%, Oracle (NasdaqGS: ORCL) 4.8% and Intel (NasdaqGS: INTC) 4.8%.