http://www.reuters.com/article/2013/05/09/us-derivatives-trading-idUSBRE94816M20130509

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

http://online.barrons.com/article/SB50001424052748704253204578473003295456698.html?mod=BOL_options_home

http://blogs.wsj.com/moneybeat/2013/05/09/fear-gauge-sees-stock-volatility-abating-even-further/

http://blogs.wsj.com/moneybeat/2013/05/09/bats-european-arm-wins-exchange-status/

http://www.reuters.com/article/2013/05/08/us-swap-rules-senate-idUSBRE94716P20130508

http://www.thetradenews.com/news/Regions/Europe/HFT_helps_stabilise_the_market_during_shocks_-_Eurex.aspx

http://www.bloomberg.com/news/2013-05-08/jpmorgan-returns-to-perfect-trading-record-following-whale-loss.html

http://www.livemint.com/Money/F3jod3sV5AtBRFVmnLGkXO/Options-market-booms-as-record-volumes-lure-highspeed-trade.html

http://www.advancedtrading.com/regulations/60-percent-of-derivatives-users-unprepar/240154483

http://www.nasdaq.com/article/vix-lower-on-quiet-week-but-resilient-cm244714

http://www.nasdaq.com/article/trading-options-in-three-dimensions-cm244671