http://www.efinancialnews.com/story/2013-12-02/nasdaq-steps-up-pursuit-of-a-partner

http://online.wsj.com/article/BT-CO-20130212-711877.html

http://www.bloomberg.com/news/2013-02-13/cme-s-gill-says-would-consider-joining-overseas-consolidation.html

http://www.bloomberg.com/news/2013-02-12/hedge-fund-investors-are-sure-losers-in-herbalife-fight.html

http://newsandinsight.thomsonreuters.com/Legal/News/2013/02_-_February/Global_watchdog_needs_more_time_on_derivatives_rules/

http://www.chicagotribune.com/business/breaking/chi-cme-group-does-not-want-to-go-private-at-this-time-ceo-says-20130212,0,6317571.story

http://blogs.marketwatch.com/thetell/2013/02/12/low-vix-high-correlations-show-investors-are-still-banking-on-the-fed-colas/

http://finance.yahoo.com/news/revisiting-good-bad-ugly-vix-200412640.html

http://www.advancedtrading.com/infrastructure/wheres-the-transparency-in-order-routing/240148342

http://online.barrons.com/article/SB50001424052748704852604578299870132474656.html?mod=BOL_columnist_latest_col_art

https://theoptionsinsider.com/tradingtechnology/?p=100008991&qcABC=1

http://thetradenews.com/newsarticle.aspx?id=6442451489