Looking at units outstanding versus one week prior within the universe of ETFs covered at ETF Channel, the biggest outflow was seen in the Health Care Select Sector SPDR Fund (XLV), where 4,300,000 units were destroyed, or a 2.0% decrease week over week. Among the largest underlying components of XLV, in morning trading today Johnson & Johnson (JNJ) is down about 0.1%, and Pfizer (PFE) is up by about 0.1%.