http://www.bloomberg.com/news/articles/2016-07-25/the-beginners-guide-to-brexit-what-have-we-learned-so-far

http://www.marketwatch.com/story/technical-indicators-suggest-this-bull-run-continues-to-have-the-green-light-2016-07-25

http://www.forbes.com/sites/fredoltarsh/2016/07/22/sp-at-highs-before-critical-earnings-week-amazon-apple-facebook-and-google-report-whats-next/#6f67a4c7325f

http://www.bloomberg.com/news/articles/2016-07-24/yuan-flunks-fed-haven-test-as-imf-prepares-it-for-reserve-basket

http://www.thetradenews.com/Regions/Americas/US-election-could-see-25–pull-out-of-stock-market/

http://www.cboeoptionshub.com/2016/07/24/weekend-review-vix-futures-options-7182016-7222016/

http://www.chicagobusiness.com/article/20160725/NEWS01/160729910/etrade-to-buy-optionshouse-from-general-atlantic

http://tickertape.tdameritrade.com/options/2016/07/call-option-substitute-stock-44154

http://www.investing.com/analysis/vix-low-level-200143666

http://tradinggods.net/trading-gods-blog/sp-500-sets-new-time-high/