http://blogs.wsj.com/moneybeat/2014/07/31/options-traders-bet-gopro-shares-will-keep-climbing/

http://www.reuters.com/article/2014/07/31/cftc-massad-idUSL2N0Q616720140731

http://www.advicetrade.com/middayminute/The-VIX-Starts-to-Rumble-on-the-Upside-201407312823.html

http://blogs.wsj.com/moneybeat/2014/07/31/options-suggest-tesla-results-wont-send-shares-on-another-wild-ride/

http://www.reuters.com/article/2014/07/31/cme-results-idUSL2N0Q60N020140731?feedType=RSS&feedName=financialsSector

http://www.reuters.com/article/2014/07/30/us-markets-regulations-iexgroup-idUSKBN0FZ09J20140730

http://www.efinancialnews.com/story/2014-07-31/gfi-cme-sale-what-it-means?mod=home-top

http://www.bloomberg.com/news/2014-07-30/cftc-says-u-s-needs-flexibility-to-oversee-cross-border-swaps.html

http://www.businessweek.com/news/2014-07-30/wall-street-facing-new-u-dot-s-dot-scrutiny-of-derivatives-rule-tactic

http://www.businessweek.com/news/2014-07-30/u-dot-s-dot-may-move-to-sanction-russia-derivatives-short-term-funds

http://www.bloomberg.com/news/2014-07-31/ukraine-prompts-rush-for-stock-hedges-in-european-options.html

http://blogs.wsj.com/moneybeat/2014/07/30/amid-sleep-markets-survey-suggests-investors-complacent-about-volatility/?mod=wsj_streaming_stream