In case you haven't noticed, the slick-back hairstyle is definitely back on Wall Street. We've seen the look everywhere from hedge funds, banks, CNBC and Bloomberg and even the traders on the floor of the stock exchange. We were curious what the craze is all about so we asked around. We've heard three different theories from hairstylists as to why the slick-back is back. 1. According to a barber who caters to high end Wall Street clientele, the trend is mostly for the younger guys, especially traders, who like to look "flashy." 2. Another hairstylist who works downtown on Wall Street said he think it's the bad ... (full story)