Chicago Mercantile Exchange Inc.

Sean Michael Downey

Matthew Scott Simpson

Robert William Taylor

Dhiraj Subhash Bawadhankar

Frederick Sturm

Suzanne Sprague

Stephen Hurst

Anton Chuprun

Matthew Steven Waldis

Jeffrey Graham Rosenthal

A computer implemented method of reducing data elements in a data file includes: receiving a data file including one or more primary data elements; storing the data file in a memory coupled to the processor; generating, from at least one of the one or more primary data elements, a plurality of supplemental data elements; determining whether any of the plurality of supplemental data elements and any of the primary data elements offset each other; and upon determining that at least one of the plurality of supplemental data elements and at least one of the primary data elements offset each other, deleting, from the data file, at least one of the offset supplemental data elements or primary data elements.

Data file compression

An illustrative computing device may include a processor and a non-transitory memory device for storing a data structure capable of being compressed, where the data structure includes a plurality of data elements and each of the plurality of data elements includes a date field and a quantity field. The computing device may process instructions to arrange the plurality of data elements in a consecutive series in date order based on a value stored in the date field of each data element, determine whether a gap appears in the consecutive series of data elements based on a value stored in the quantity field of each element, remove the determined gaps in each of the data elements, and repeat the determining and removing steps until a predetermined criterion has been reached.

Compression of an exchange traded derivative portfolio

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Chicago, IL, United States of America

Sean Michael Downey