Looking today at week-over-week shares outstanding changes among the universe of covered at ETF Channel, one standout is the SPDR S&P Biotech ETF (AMEX: XBI) where we have detected an approximate $15.6 million dollar outflow ? that?s a 2.8% decrease week over week (from 7,100,000 to 6,900,000). Among the largest underlying components of XBI, in ...
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