May 9 CBOE Holdings Inc, the operator of the largest U.S. options exchange, reported a 69.3 percent fall in quarterly profit, hit by higher costs.
Chicago-based CBOE's net income allocated to common shareholders fell to $15.1 million, or 16 cents per share, in the first quarter ended March 31, from $49.2 million, or 60 cents per share, a year earlier.
The company's operating expenses rose to $167.3 million from $63.6 million.
(Reporting by Diptendu Lahiri in Bengaluru; Editing by Arun Koyyur)
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