http://www.financemagnates.com/institutional-forex/exchanges/cboes-april-turnover-lower-futures-equities-volumes-weigh/

http://uk.reuters.com/article/sec-ethics-accountant-idUKL1N1I51E5

http://tickertape.tdameritrade.com/options/2017/05/vix-fear-index-fearless-50193

http://www.tradersmagazine.com/news/buyside/great-data-226128-the-antidote-to-speed-and-volatility-stress-116175-1.html

http://www.nytimes.com/2017/05/03/business/dealbook/markets-vix-volatility-finsbury.html?_r=0

http://www.bloomberg.com/news/articles/2017-05-03/exchanges-still-dreaming-of-deals-after-lse-deutsche-boerse-dies

http://www.bloomberg.com/news/articles/2017-05-03/do-volatility-tracking-securities-keep-the-vix-artificially-low

http://www.bloomberg.com/view/articles/2017-05-02/the-daily-prophet-oil-tumbles-vix-captivates-and-greece-soars

http://www.marketwatch.com/story/wall-street-fear-gauge-tanks-stocks-and-bonds-soarsomethings-gotta-give-2017-05-02

http://www.forbes.com/sites/greatspeculations/2017/05/02/eerie-calm-in-market-volatility-belies-global-policy-uncertainty/#1ce74b931e25

http://www.reuters.com/article/us-usa-stocks-idUSKBN17Y178

http://www.tastytrade.com/tt/blog/recent-vix-wipe-out-makes-history