IEX Chief: Stock Exchanges Monopolize & Overcharge For Market Data By: Benzinga via Benzinga June 09, 2016 at 17:42 PM EDT As trading revenues continue to tumble, stock exchanges have had to find new ways to earn big money. Data seems to be the ... Read More >> Related Stocks: Bio-Techne Corp Idex Corp SPDR S&P 500 ETF Trust