ETFs to Watch July 23, 2013 (EWZ, GLD, UDN)

Here is the ETF Professor's ETF Watch List for Tuesday, July 23, 2013. The SPDR Gold Shares (NYSE: GLD ) will certainly be in play as will the iShares Silver Trust. Keep an eye on the Global X Silver Miners ETF (NYSE: SIL ). Let's see if the iShares Dow Jones