http://tickertape.tdameritrade.com/options/2016/03/volatility-fear-gauge-brakes-36016

http://www.thetradenews.com/Regulation/US-automated-trading-rules-cause-uproar/

http://www.bloomberg.com/news/articles/2016-03-23/flash-crash-trader-sarao-loses-extradition-case-in-london-court

http://www.marketwatch.com/story/the-probability-of-an-april-rate-hike-just-doubled-2016-03-23

http://www.marketwatch.com/story/european-markets-rise-as-travel-stocks-recover-after-brussels-attacks-2016-03-23

http://www.bloomberg.com/news/articles/2016-03-23/-brexit-fretting-at-bank-of-england-may-be-about-to-intensify

http://nypost.com/2016/03/21/wall-street-looks-to-copy-iex-speed-bumps-model/

http://www.bloomberg.com/news/articles/2016-03-22/deutsche-boerse-investors-warn-management-not-to-overpay-for-lse

http://www.economiccalendar.com/2016/03/23/sp-500-edges-lower-in-volatile-trade/

http://www.bloomberg.com/news/articles/2016-03-23/flows-to-volatility-etfs-becoming-deluge-as-s-p-500-rally-hedged

http://blogs.barrons.com/focusonfunds/2016/03/22/the-vix-has-fallen-hard-but-dont-ditch-stocks-just-yet/

http://www.futuresmag.com/2016/03/22/we-asked-traders-their-views-hft-what-they-said%E2%80%A6