http://www.ft.com/intl/fastft/357181/volatility-spikes-amid-nyse-breakdown

http://money.cnn.com/2015/07/08/investing/nyse-suspends-trading/index.html

http://www.bloomberg.com/news/articles/2015-07-08/china-ousts-russia-as-riskiest-brics-market-for-options-traders

http://www.marketwatch.com/story/nyse-halts-trading-in-all-securities-2015-07-08?siteid=yhoof2

http://www.bloomberg.com/news/articles/2015-07-08/u-s-index-futures-tumble-with-asian-equities-as-miners-decline

http://www.thetradenews.com/news/Regions/Americas/A_guide_to_the_US_options_market.aspx

http://www.bloomberg.com/news/articles/2015-07-07/algorithmic-trades-may-fall-under-fca-s-conduct-rules

http://www.bloomberg.com/news/articles/2015-07-08/china-stock-futures-plunge-amid-trading-halts-margin-debt-drop

http://www.reuters.com/article/2015/07/07/mfglobal-settlement-idUSL1N0ZN11520150707

http://www.cboeoptionshub.com/2015/07/07/options-on-msci-eafe-and-em-indexes-bigger-notional-size-and-added-expirations/

http://www.marketwatch.com/story/five-years-after-dodd-frank-here-come-the-reviews-2015-07-07

http://www.wsj.com/articles/lehman-settles-derivatives-dispute-over-putnam-swaps-1436300738