http://online.wsj.com/article/SB10001424127887324010704578418633977670950.html#

http://www.businessinsider.com/renderings-of-nyse-trading-floor-2013-4

http://derivative-news.fincad.com/derivatives-regulations/proposed-derivatives-bills-considered-by-house-finance-committee-7907/

http://www.advancedtrading.com/exchanges/ise-announces-gemini-as-name-of-new-opti/240152807

http://online.wsj.com/article/SB10001424127887324010704578417082957556450.html?mod=googlenews_wsj#

http://www.bloomberg.com/news/2013-04-12/high-speed-trader-said-to-be-considered-for-sec-post.html

http://www.reuters.com/article/2013/04/12/usa-options-ma-idUSL1N0C5CSP20130412

http://www.nasdaq.com/article/etf-showdown-a-pharma-fight-cm236110#.UWgGf1fwpsw

http://www.bloomberg.com/news/2013-04-12/infosys-plunge-gives-options-traders-200-profit-on-strangle-bet.html

http://hereisthecity.com/2013/04/11/how-high-speed-trading-is-about-to-get-speedier/

http://www.bloomberg.com/news/2013-04-11/crude-options-implied-volatility-increases-as-oil-futures-tumble.html

http://wallstreetsectorselector.com/2013/04/vix-slips-as-dow-and-sp-500-set-new-records/#