http://www.investing.com/analysis/vix:-4-hour-bare-knuckle-street-brawl-235913

http://www.businessweek.com/news/2014-12-15/barclays-dark-pool-suits-to-be-handled-by-new-york-judge

http://online.barrons.com/articles/volatility-spikes-heres-the-trade-that-tames-it-1418679220

http://blogs.barrons.com/focusonfunds/2014/12/15/vix-of-vix-near-record-some-market-observers-are-nervous/

http://www.reuters.com/article/2014/12/15/nasdaq-options-ise-idUSL1N0TZ14Q20141215

http://www.tradersmagazine.com/news/technology/top-2014-trends-a-big-year-for-big-data-113245-1.html

http://www.bloomberg.com/news/2014-12-15/u-s-index-futures-signal-rebound-for-s-p-500-dow-after-rout.html

http://dealbook.nytimes.com/2014/12/12/wall-st-wins-a-round-in-a-dodd-frank-fight/?_r=0

http://www.business-standard.com/article/markets/rise-in-options-trading-from-small-centres-worries-sebi-114121500029_1.html

http://www.finances.com/analyses-and-opinions/analysis-opinions/46228-markets-struggle-lower-crude-oil-silver-lining.htm

http://www.reuters.com/article/2014/12/15/euronext-derivatives-idUSL6N0TZ0WB20141215

http://www.forbes.com/sites/robertlenzner/2014/12/13/wall-street-reverses-ban-on-trading-derivatives-backed-by-uncle-sam/