Third Quarter 2013 Financial Highlights
— Operating Revenue Increases 7 Percent to $136.7 Million
— GAAP Net Income Allocated to Common Stockholders of $41.0 Million, Compared With $45.2 Million; Diluted EPS of $0.47, Compared With $0.52
— Adjusted Net Income Allocated to Common Stockholders Up 9 Percent to $41.0 Million(1); Adjusted Diluted EPS of $0.47, Up 9 Percent
— Operating Margin of 50.0 Percent, Up 260 Basis Points

CHICAGO, Nov. 1, 2013 /PRNewswire/ — CBOE Holdings, Inc. (NASDAQ: CBOE) today reported third quarter 2013 net income allocated to common stockholders of $41.0 million, or $0.47 per diluted share, compared with $45.2 million, or $0.52 per diluted share, in the third quarter of 2012.  On an adjusted basis, net income allocated to common stockholders was $41.0 million, or $0.47 per diluted share, compared with $37.7 million, or $0.43 per diluted share, in the same period last year.  Operating revenue for the quarter was $136.7 million, up 7 percent compared with $128.3 million in the third quarter of 2012. »