http://www.businessweek.com/news/2013-04-17/crude-oil-options-advance-as-futures-fall-to-4-month-low

http://www.fow.com/Article/3193121/Unequal-options.html

http://www.reuters.com/article/2013/04/17/usa-wallstreet-jobs-idUSL2N0D21N420130417

http://blogs.wsj.com/moneybeat/2013/04/17/nyse-credit-suisse-spat-shines-light-on-dark-pools/

http://www.cnbc.com/id/100649959

http://blogs.marketwatch.com/thetell/2013/04/17/quantitative-easing-is-like-a-huge-glass-of-warm-milk-for-vix/

http://www.ifre.com/derivatives-fuel-violent-gold-swings/21080386.article

http://investorplace.com/2013/04/squeeze-profits-from-oil-with-strangles/

http://www.bloomberg.com/news/2013-04-17/u-s-stock-options-with-biggest-changes-in-implied-volatility.html?cmpid=yhoo

http://www.bloomberg.com/news/2013-04-16/ex-mf-global-broker-sentenced-to-5-years-for-trades-correct-.html?cmpid=yhoo

http://online.barrons.com/article/SB50001424052748703318404578426632445631280.html?mod=BOL_hpp_highlight_mid

http://www.bloomberg.com/news/2013-04-16/vix-bets-post-biggest-rally-in-7-weeks-as-s-p-500-drops.html