http://www.investorguide.com/article/12609/advantages-to-trading-index-options-wo/

http://www.mideasttime.com/cboe-holdings-pt-raised-to-37-00-cboe/7830/

http://www.mideasttime.com/cboe-holdings-given-new-30-00-price-target-at-barclays-capital-cboe/7953/

http://www.automatedtrader.net/headlines/142432/cftcs-chilton-calls-for-derivatives-bill-of-rights–including–hft-registration-and-conduct-rules

http://citywire.co.uk/wealth-manager/raymond-james-launches-strategic-options-trading-desk/a670795

http://www.bloomberg.com/news/2013-04-03/chilton-seeks-end-user-enforcement-delay-for-cftc-s-swaps-rules.html

http://dealbook.nytimes.com/2013/04/02/s-e-c-clears-social-media-for-corporate-announcements/

http://www.businessweek.com/articles/2013-04-02/mary-schapiro-out-of-the-sec-and-into-the-shadows

http://www.bloomberg.com/news/2013-04-03/u-s-stock-options-with-biggest-changes-in-implied-volatility.html?cmpid=yhoo

http://online.barrons.com/article/SB50001424052748704235404578400403817171278.html?mod=BOL_options_home

http://www.kansascity.com/2013/04/03/4158754/bats-exchanges-us-and-european.html

https://theoptionsinsider.com/industry/?p=100012425&qcABC=1