ETFs to Watch August 21, 2013 (BKLN, EWZ, XLP)

Here is the ETF Professor's ETF Watch List for Wednesday, August 21, 2013. The ProShares UltraShort Financials (NYSE: SKF ) should be in play. Give the PowerShares Buyback Achievers ETF (NYSE: PKW ) a look. Play some defense with the Consumer Staples Select Sector SPDR (NYSE: XLP ). Emerging markets plays