Looking at units outstanding versus one week prior within the universe of ETFs covered at ETF Channel, the biggest outflow was seen in the Direxion Daily 20+ Year Treasury Bull 3X Shares, where 4,950,000 units were destroyed, or a 3.5% decrease week over week. Among the largest underlying components of TMF, in morning trading today Ishares 20+ Year Treasury Bond ETF is down about 0.5%.