Dow Jones Index ETF Most Popular So Far This Year

After taking a back seat for years to ETFs based on the S&P 500 [ SPDR S&P 500 ETF Trust ( SPY ) ] and Nasdaq [ PowerShares QQQ Trust ( QQQ ) ], theSPDR Dow Jones Industrial Average ETF Trust ( DIA )is having a breakout start to the year.The fund, based on the venerable and—to some–controversial Dow Jones