HFT

http://en.wikipedia.org/wiki/High-frequency_trading

http://www.theglobeandmail.com/report-on-business/international-business/us-business/high-frequency-trading-goes-under-the-microscope/article17819090/

http://www.forbes.com/sites/genemarcial/2014/04/02/high-frequency-trading-mainly-hurts-the-traders-and-short-term-investors/

http://www.businessweek.com/articles/2014-04-01/what-michael-lewis-gets-wrong-about-high-frequency-trading