http://www.valuewalk.com/2014/01/twitter-inc-twtr-option-structure/

http://www.thetradenews.com/news/Asset_Classes/Derivatives/Exchange_figures_show_tough_environment_for_equity_derivatives.aspx

http://blogs.wsj.com/moneybeat/2014/01/09/sears-options-trading-surges/

http://www.bloomberg.com/news/2014-01-09/crude-options-volatility-falls-as-oil-sinks-to-eight-month-low.html

http://wallstreetsectorselector.com/2014/01/butterflies-expiration-importance-time/

http://online.wsj.com/news/articles/SB10001424052702303848104579310963256661336?mod=dist_smartbrief

http://nymag.com/daily/intelligencer/2014/01/huge-hedge-fund-had-a-pretty-bad-year.html

http://www.nasdaq.com/article/getting-ready-for-earnings-season-with-options-know-your-options-cm317151

http://www.tradersmagazine.com/news/how-this-rogue-trader-banged-the-close-and-trashed-his-firm-111970-1.html

http://online.barrons.com/article/SB50001424053111904246304579310650585144702.html?mod=googlenews_barrons

http://www.futuresmag.com/2014/01/09/positioning-for-an-oil-surge-with-options?t=options

http://online.wsj.com/article/BT-CO-20140109-701202.html