ETFs to expand in 2011; assets top $1 trillion By: MarketWatch January 12, 2011 at 09:20 AM EST Exchange traded funds have topped $1 trillion in assets and investors should look for more financial firms to join the business in 2011. Read More >> Related Stocks: BlackRock Charles Schwab Dividend Appreciation ETF Vanguard FTSE EM ETF Vanguard Gold Trust Ishares High Yield Corp Bond Ishares Iboxx $ ETF JNK Morningstar Inc S&P Dividend SPDR SPDR GOLD Schwab U.S. Broad Market ETF State Street Corp Total Bond Market ETF Vanguard US Commodity Index US Preferred Stock Ishares ETF