OneChicago CEO and chairman Rainer resigns

OneChicago CEO and chairman Rainer resigns

William Rainer, chairman and CEO of electronic security futures exchange OneChicago, is stepping down at the end of November.

Rainer was recruited in 2001 to lead the OneChicago joint venture, which was established to trade single stock futures by Chicago Mercantile Exchange (CME), Chicago Board Options Exchange (CBOE), and Chicago Board of Trade (CBOT).

In a statement, OneChicago says Rainer is departing for "personal reasons".

Martin Doyle, who currently serves as managing director, business development, will take over as president, while Peter Borish, OneChicago's senior managing director of business development, has been appointed to the position of non-executive chairman,

Robert Walsh, managing director for operations, has been named chief operating officer.

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