http://www.reuters.com/article/2015/04/23/us-flashcrash-trader-cme-analysis-idUSKBN0NE00P20150423

http://www.reuters.com/article/2015/04/22/flashcrash-trader-cme-idUSL1N0XJ2DP20150422

http://www.bloomberg.com/news/articles/2015-04-22/omega-sees-stock-bull-market-lasting-longer-than-one-year

http://www.euronews.com/business-newswires/3009423-exclusive-eu-eyes-more-delay-in-clearing-house-decision/

http://www.nytimes.com/2015/04/23/business/dealbook/traders-arrest-raises-concerns-about-market-rigging.html?_r=2

http://www.law360.com/articles/646608/tesla-stock-options-breach-suit-revived-by-calif-court

http://www.reuters.com/article/2015/04/22/us-flashcrash-trader-idUSKBN0ND17220150422

http://www.automatedtrader.net/headlines/153659/rough-volatility-new-research-helps-traders-hone-their-edge

http://blogs.wsj.com/moneybeat/2015/04/22/options-traders-betting-facebook-will-climb-after-earnings/

http://www.wsj.com/articles/cme-says-prohibited-from-releasing-info-about-any-individuals-trading-1429734205