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Investor Services will be closed for the exchange holiday on November 27, 2014. We will reopen at 7:30 a.m. CT and close at 1:00 p.m. CT on Friday, November 28, 2014.

November 18, 2014
OCC Announces Kimberly McGarry as New Chief Financial Officer

November 10, 2014
OCC Announces Tracy Raben as New Chief Human Resources Officer

November 3, 2014
OCC Announces Cleared Contract Volume Increased 23% in October for Second Highest Volume Month on Record

February 27, 2014
2013 Annual Report