http://www.reuters.com/article/2012/10/16/us-citigroup-pandit-options-idUSBRE89F1O220121016

http://online.wsj.com/article/SB10000872396390443624204578060881074617240.html?mod=googlenews_wsj

http://wallstreetsectorselector.com/2012/10/vix-continues-consolidation/

http://www.tradersmagazine.com/news/framework-for-audit-trail-expected-by-year-end-110431-1.html

http://www.bloomberg.com/news/2012-10-17/knight-capital-reports-net-loss-as-software-error-takes-toll-1-.html

http://www.advancedtrading.com/derivatives/equity-derivatives-trading-volumes-move/240009127

http://www.cnbc.com/id/49421545?__source=yahoonews&par=yahoonews

https://theoptionsinsider.com/unusualactivity/?p=100001877&qcABC=1

http://www.reuters.com/article/2012/10/16/us-exchanges-cme-margins-idUSBRE89F1C620121016

http://online.barrons.com/article/SB50001424053111904034104578060514048485022.html?mod=BOL_columnist_latest_col_art

http://www.tradersmagazine.com/news/exchanges-defend-liability-limits-when-systems-malfunction-110430-1.html

http://seekingalpha.com/article/926401-writing-put-options-on-microsoft