News Releases

NYSE Clearing appoints Demetria O'Sullivan as Chief Risk Officer
London - 9 November 2012– NYSE Euronext (NYX) today announced the appointment of Demetria O’Sullivan as Chief Risk Officer of its new full-service derivatives Clearing House in London – NYSE Clearing.  NYSE Clearing intends to launch a revamped NYSE Clearing platform in June 2013 to expand its existing clearing business.

Ms O’Sullivan joins NYSE Euronext on 3 December 2012 having worked most recently at Citigroup, where she was Global Head of Risk for Futures and OTC Clearing, having previously held a similar role at J P Morgan.  During that time, Ms O’Sullivan served on the Risk Committees of various global CCPs and has therefore been at the forefront of developments in risk management for futures and OTC derivatives clearing.

Ms O’Sullivan will report to Mark Ibbotson, Chief Executive of NYSE Liffe for Clearing, Trading & Regulation.

Mark Ibbotson said: “We are delighted to welcome Demetria to NYSE Euronext.  She brings important risk management leadership skills and industry experience to our management team, underlining our commitment to offer a world-class clearing solution to our clients.”


James Dunseath: +44 (0) 207 379 2804 -

About NYSE Euronext
NYSE Euronext (NYX) is a leading global operator of financial markets and provider of innovative trading technologies. The company's exchanges in Europe and the United States trade equities, futures, options, fixed-income and exchange-traded products. With approximately 8,000 listed issues (excluding European Structured Products), NYSE Euronext's equities markets - the New York Stock Exchange, NYSE Euronext, NYSE MKT, NYSE Alternext and NYSE Arca - represent one-third of the world’s equities trading, the most liquidity of any global exchange group. NYSE Euronext also operates NYSE Liffe, one of the leading European derivatives businesses and the world's second-largest derivatives business by value of trading. The company offers comprehensive commercial technology, connectivity and market data products and services through NYSE Technologies. NYSE Euronext is in the S&P 500 index. For more information, please visit: