http://www.livetradingnews.com/options-trade-alert-dollar-thrifty-automotive-group-nysedtg-91300.htm#.UIqRJoZXnNE

http://www.chicagotribune.com/business/breaking/chi-cme-to-being-payouts-to-peregrine-customers-20121025,0,7337294.story

http://online.wsj.com/article/SB10001424052970203937004578079063600843282.html#

http://wallstreetsectorselector.com/2012/10/vix-etfs-begin-to-move-sideways-again/

http://247wallst.com/2012/10/25/groupon-sees-very-unusual-options-trading/

http://ca.news.yahoo.com/analysis-apple-options-tail-wagging-dog-174556650–finance.html

http://online.barrons.com/article/SB50001424052748704377904578078692965450424.html?mod=BOL_options_home

http://investorplace.com/2012/10/your-best-post-pc-stock-isnt-aapl/

https://theoptionsinsider.com/unusualactivity/?p=100002588&qcABC=1

http://www.chicagotribune.com/business/breaking/chi-cme-group-q3-profit-falls-30-as-trading-sags-20121025,0,4116597.story

http://dealbook.nytimes.com/2012/10/24/rajat-gupta-gets-2-years-in-prison/

http://www.reuters.com/article/2012/10/25/cme-results-volume-idUSL1E8LP4A520121025?type=companyNews&feedType=RSS&feedName=companyNews&rpc=43