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 SPDR S&P 500 (SPY), which shed 33,300,000 shares, or a 4.3% decrease week over week. And on a percentage change basis, the ETF with the largest outflow was the Daily Gold Miners Bear 3x Shares (DUST), which lost 500,000 of its shares, for a whopping 32.3% decline in outstanding shares.