http://www.tradersmagazine.com/issues/26_346/dividend-trades-cease-options-exchanges-110742-1.html

http://blogs.wsj.com/marketbeat/2013/01/17/short-sellers-take-bite-out-of-apple/

http://www.benzinga.com/news/earnings/13/01/3252482/apple-options-skew-an-earnings-indicator

http://www.bloomberg.com/news/2013-01-17/u-s-stock-options-with-biggest-changes-in-implied-volatility.html?cmpid=yhoo

http://www.tradersmagazine.com/news/brief-nyse-system-error-may-have-affected-prices-110751-1.html

https://theoptionsinsider.com/unusualactivity/?p=100007231&qcABC=1

http://blogs.wsj.com/economics/2013/01/16/secs-gallagher-expects-sec-to-move-soon-on-tougher-money-fund-rules/

http://www.automatedtrader.net/news/automated-trading-news/142013/citadel-selects-bloomberg-for-derivatives-trading-and-access-to–clearing

http://www.macnn.com/articles/13/01/16/see.consensus.beating.iphone.sales.as.likely/

http://www.bloomberg.com/news/2013-01-16/-no-end-in-sight-to-volcker-rule-process-sec-commissioner-says.html

http://online.barrons.com/article/SB50001424052748704843204578245953306291748.html?ru=yahoo&mod=yahoobarrons

http://www.tradersmagazine.com/news/direct-edge-discloses-order-handling-discrepancies-110749-1.html