Forget Flash Boys, these ETFs can sting investors By: CNBC.com News April 14, 2014 at 14:05 PM EDT Stock lending can help ETFs generate extra income. But some managers, like BlackRock, pocket a big chunk of those fees for themselves. Read More >> Related Stocks: American International Group BlackRock Nasdaq Biotechnology Ishares ETF Russell 2000 Value Ishares ETF SPDR Mid Cap Portfolio ETF Select Dividend Ishares ETF State Street Corp