David Thome

Sphere Communications, Inc. provides voice, video, and data communications software solutions on broadband networks. The company develops and markets open, standards-based communications software enables customers to make technology investments that will provide long-term returns. Sphere Communications was founded by Charles W. Pearson in June, 1994 and is headquartered in Lincolnshire, IL.

Deloitte & Touche provides audit, enterprise risk management, and financial advisory services. The company delivers services in four professional areas: audit, tax, consulting, and financial advisory services. It provides its clients with global services such as entering foreign markets, raising funds, and investing in Mainland China. The company was founded in June, 2003 and is headquartered in Taipei, Taiwan.

NYSE Chicago, Inc. offers technology based national securities exchange services. It provides business to transact in all equity securities traded on NYSE, AMEX, NASDAQ, or other national securities exchanges. CHX acts as a venue for hedge funds, options market markers, quantitative, professional and active individual traders that require immediate and automated execution. The firm provides services through its technology products including CHXBD, CHX SHARE and SNAP. The company was founded in 1882 and is headquartered in Chicago, IL.

Cboe Exchange, Inc. provides options exchange services. It trades equity options, security index options, options on exchange traded notes and products, binary options, one-week and quarterly options, long-term equity anticipation securities options, and flexible exchange options. The firm also provides information on various stock and options trading strategies, options trading tools, stock and option quotes and data; and options information and education. Additionally, they offer access to product information, conference notices, portfolio management tools, and educational materials for institutional investors and products and strategies for advisors to protect client’s portfolios. The company was founded in 1973 and is headquartered in Chicago, IL.

The Clearing Corp. provides financial trading services. The firm acts as a future clearing house, in which the clearing process begins with the execution of a trade through an electronic trading system such as the Eurex U.S. trading platform. The company was founded on December 22, 1925 and is headquartered in Chicago, IL.