http://blogs.wsj.com/moneybeat/2015/05/06/list-of-operational-issues-for-markets-since-the-flash-crash/

http://blogs.wsj.com/moneybeat/2015/05/06/tesla-options-suggest-biggest-post-earnings-move-in-a-year/

http://www.reuters.com/article/2015/05/06/britain-election-stocks-options-idUSL5N0XX3NN20150506

http://finance.yahoo.com/news/accused-flash-crash-trader-tells-105735092.html

http://www.usatoday.com/story/opinion/2015/05/05/dow-jones-flash-crash-trading-column/26875317/

http://www.cboeoptionshub.com/2015/05/05/a-dozen-positive-developments-in-2015-for-investors-in-options/

http://finance.yahoo.com/news/flash-crash-5-years-later-205808914.html

http://www.reuters.com/article/2015/05/06/cftc-traders-lawsuit-idUSL4N0XX2NP20150506

http://www.bloomberg.com/news/articles/2015-05-06/u-s-index-futures-gain-after-s-p-500-s-biggest-drop-since-march

http://finance.yahoo.com/news/wall-street-group-backs-bats-175713449.html

http://blogs.barrons.com/focusonfunds/2015/05/05/proshares-announces-etf-splits-volatility-fund-to-see-get-1-for-5-reverse/

http://investorplace.com/2015/05/why-the-vix-may-challenge-all-time-lows-in-2015/#.VUjxn5Mm_nY