http://www.tabbforum.com/news/high-frequency-trading-must-separate-fact-from-fiction-says-nyse-coo-leibowitz

http://www.chicagotribune.com/business/breaking/chi-ices-nyse-swoop-creates-derivatives-giant-20121221,0,527429.story?track=rss

http://dealbook.nytimes.com/2012/12/20/exchange-sale-reflects-new-realities-of-trading/

http://www.chicagotribune.com/business/sns-rt-us-ice-nyse-optionsbre8bj1ck-20121220,0,204734.story

http://blogs.wsj.com/marketbeat/2012/12/20/suspicious-options-trading-prior-to-nyse-deal/

http://www.bloomberg.com/news/2012-12-21/cme-seen-next-predator-as-speculators-mull-nyse-real-m-a.html

http://247wallst.com/2012/12/20/after-ice-nyse-merger-will-cme-try-to-buy-nasdaq/

http://www.nytimes.com/2012/12/20/business/knight-capital-announces-sale-to-getco.html?_r=0&adxnnl=1&adxnnlx=1356102735-wB8zKhDJ5e/nsuvstaTTIg

http://www.suntimes.com/business/17144015-420/nyse-sale-has-cme-on-hot-seat.html

http://www.futuresmag.com/2012/12/20/ice-nyse-deal-a-winner-say-experts?ref=hp

http://www.bloomberg.com/news/2012-12-20/u-s-stock-options-with-biggest-changes-in-implied-volatility.html?cmpid=yhoo

http://online.barrons.com/article/SB50001424052748704379604578191443018308654.html?mod=BOL_options_home