Popular ETFs You Should Never Use: Pro By: CNBC.com News June 13, 2012 at 18:37 PM EDT If you regularly trade the XLF, the GLD or 3 other popular ETFs, you may be making a giant mistake. Read More >> Related Stocks: FINANCIAL SEL Gold Trust Ishares High Dividend Ishares Core ETF High Yield Corp Bond Ishares Iboxx $ ETF JNK Russell 2000 Ishares ETF SPDR GOLD Select Dividend Ishares ETF Smallcap ETF Vanguard US Financials Ishares ETF