Mr. Harkness is a Managing Director of Wolverine Trading, LLC, the Chief Executive Officer of Wolverine Asset Management LLC and a limited partner of Wolverine Holdings, L.P. Mr. Harkness has been on the board of directors for the (ISE) International Securities Exchange since 2002. From April 1994 to July 1999, Mr. Harkness was Managing Director of MicroHedge, an options and risk management company. Mr. Harkness also held trading and sales positions with Telekurs AG, Market View Software, Drexel Burnham Lambert, and LaSalle Arbitrage.