Looking today at week-over-week shares outstanding changes among the universe of ETFs covered at ETF Channel, one standout is the PowerShares QQQ (NASD: QQQ) where we have detected an approximate $435.5 million dollar inflow ? that?s a 1.3% increase week over week in outstanding units (from 514,850,000 to 521,550,000). Among the largest underlying components of ...