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 iShares Core S&P 500 ETF (IVV), which shed 2,400,000 shares, or a 1.0% decrease week over week. And on a percentage change basis, the ETF with the largest outflow was the Basic Materials GEMS ETF (LGEM), which lost 50,000 of its shares, for a whopping 25.0% decline in outstanding shares.