Craig J. Mohan was named managing director, co-location and data center services at CME Group. Previously he was director of global infrastructure at Citadel Investment Group. “Craig’s leadership and expertise in technology infrastructure management combined with his deep understanding of financial markets will help further our mission to better support the electronic trading needs of our customers worldwide,” said Julie Holzrichter, CME Group managing director of global operations, in a statement.

Ira J. Krulik was named chief operating officer and Kevin Murray was named director of business operations at New York Portfolio Clearing.

Catherine Bartzos was named chairman of the ELX supervisory board.

Mark R. Ruh was named managing director and senior portfolio manager of financial services investments at NewOak Capital.

Todd Steinberg was named a senior managing director and global head of Derivatives Delta One at Macquarie Securities Group.

Reid A. Dubuque has joined Astor Capital Management as a senior vice president.

Donald Dye was named U.S. head of retail and high net worth sales, financial products at RBC Capital Markets.

J. Douglas Donohoe was named vice president of engineering at Firm58.

Craig Abruzzo and Valar Mihan were elected to the board of directors and Paul Brody was elected to vice chairman of the board of directors at the Options Clearing Corporation.

Terry Gibson was named global head of strategy for investment services at Fiserv.

Paul Ribbins was appointed a managing director at Tullett Prebon.

Marc Weinstein was named CEO at Spotlight Financial Marketing.

Dr. Robert Barnes was named chief executive officer of UBS MTF at UBS Investment Bank.

Arun Ramanathan and Dipak Chatterjee have joined the board of the United Stock Exchange of India.

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