http://www.reuters.com/article/2014/10/15/petrobras-stocks-volatility-idUSL2N0SA1T720141015

http://www.reuters.com/article/2014/10/15/clearing-derivatives-rules-idUSL6N0SA4BZ20141015

http://www.upi.com/Business_News/Analysis/2014/10/15/Dont-panic-stocks-will-rebound/1621413372490/

http://dealbook.nytimes.com/2014/10/15/stocks-tumble-on-global-growth-worries/?_php=true&_type=blogs&_r=0

http://finance.yahoo.com/news/shire-slammed–wal-mart-plans-fewer-stores-and-the-vix-index-spikes-154949207.html

http://www.theglobeandmail.com/report-on-business/international-business/fear-index-spikes-as-investors-unload-european-stocks/article21107883/

http://www.tradersmagazine.com/news/options/us-september-options-volume-surges-on-alibaba-iphone-and-vol-112991-1.html

http://www.cboeoptionshub.com/2014/10/14/market-getting-sentimental/

http://www.bloomberg.com/news/2014-10-14/u-s-index-futures-little-changed-before-earnings-reports.html

http://www.reuters.com/article/2014/10/14/markets-forex-volume-idUSL6N0S93Y120141014

http://marketsmedia.com/volatility-back-vengeance/?utm_content=buffer0bdfa&utm_medium=social&utm_source=twitter.com&utm_campaign=buffer

http://blogs.barrons.com/stockstowatchtoday/2014/10/14/small-caps-lead-stocks-higher-too-early-to-get-excited/