Looking today at week-over-week shares outstanding changes among the universe of ETFs covered at ETF Channel, the largest inflow was seen in the iShares Dow Jones US Real Estate Index Fund (IYR), which added 5,050,000 shares, or a 6.7% increase week over week. And on a percentage change basis, the ETF with the largest increase in inflows was the Daily Retail Bull 3x Shares (RETL), which added 100,000 shares, for a whopping 100.0% increase in outstanding shares.