CBOE Says Will Buy Back Up to $100M Worth of Shares

CBOE Holdings, Inc.

today announced that its Board of Directors approved a 25-percent increase to its quarterly cash dividend to $0.15 per share from $0.12 per share and authorized the company to repurchase an additional $100 million of its outstanding unrestricted common stock.  The share repurchase authorization is in addition to any unused amount remaining under the existing $100 million share repurchase authorized in August 2011.  As of July 31, 2012, there was approximately $3.3 million remaining under the prior authorization, and the company had approximately