http://www.reuters.com/article/2012/09/21/us-creditsuisse-hedgefunds-idUSBRE88K19L20120921

http://www.nasdaq.com/article/bofa-merrill-lynch-takes-loss-linked-to-error-on-options-trading–sources-20120921-00730

http://www.latimes.com/business/la-fi-hiltzik-20120923,0,2146388.column

http://www.efinancialnews.com/story/2012-09-24/exchanges-eye-the-derivatives-trades-of-the-future?mod=sectionheadlines-home-TT

http://online.barrons.com/article/SB50001424053111904706204578002320975711726.html?mod=BOL_columnist_latest_col_art

http://www.businessinsider.com/options-ex-dividend-trading-glitch-2012-9

http://www.chicagobusiness.com/article/20120924/NEWS01/120929926/chicago-exchange-gets-investments-from-state-street-fidelity-unit

http://www.marketwatch.com/story/quadruple-witching-friday-goes-positive-2012-09-21

http://www.chicagotribune.com/business/breaking/chi-us-futures-regulator-urges-conflictofinterest-rules-20120921,0,5749130.story?track=rss

http://www.marketwatch.com/story/us-derivatives-trading-drops-occ-report-2012-09-21?siteid=yhoof2

http://www.minyanville.com/mvpremium/2012/09/20/getting-long-vega-in-spy/

http://www.tradersmagazine.com/news/exchanges-meet-with-brokers-over-failsafe-mechanisms-110326-1.html