Turning today to week-over-week shares outstanding changes among the universe of ETFs covered at ETF Channel, the largest outflow was seen in the Vanguard Small-Cap Growth ETF (VBK), which shed 5,800,000 shares, or a 19.3% decrease week over week. Among the largest underlying components of VBK, in morning trading today Panera Bread Company Class A (PNRA) is up about 0.2%, and W.