http://www.wallstreetsectorselector.com/2014/04/whats-the-message-coming-from-the-fear-index-vix/

http://thehill.com/blogs/on-the-money/banking-financial-institutions/203386-advocates-fear-sabotage-of-wall-st-rules

http://www.businessweek.com/news/2014-04-14/days-of-market-calm-seen-ending-in-hedge-fund-vix-bets-options

http://www.philly.com/philly/blogs/inq-phillydeals/West-Chester-investors-up-fight-against-US-regulator.html

http://www.huffingtonpost.com/david-paul/high-frequency-trading_b_5140147.html

http://www.bloomberg.com/news/2014-04-13/cme-gave-high-frequency-traders-peek-at-market-lawsuit-claims.html

http://www.bloomberg.com/news/2014-04-13/high-frequency-traders-set-for-curbs-as-eu-reins-in-flash-boys.html

http://www.bloomberg.com/news/2014-04-14/days-of-market-calm-seen-ending-in-hedge-fund-vix-bets.html

http://www.cboeoptionshub.com/2014/04/11/10580/

http://www.bloomberg.com/news/2014-04-11/citadel-fund-said-to-quadruple-with-high-frequency-trades.html

http://uk.reuters.com/article/2014/04/10/uk-g20-banking-idUKBREA390H920140410

http://www.reuters.com/article/2014/04/10/stocks-regulator-newyork-idUSL2N0N223P20140410