Nadex Adds Additional Strike Levels on a Discretionary Basis on Trade Date January 2, 2013

Pursuant to Section 5c(c)(1) of the Commodity Exchange Act, and Commission Regulation §40.6(d)(2)(iv), and by the authority granted by Nadex Rules in 12.59, 12.61, 12.63, and 12.65, Nadex added additional strike levels on a discretionary basis in its Weekly US 500, US Tech 100, US SmallCap 2000, and Wall Street 30 Binary Contracts on Trade Date January 2, 2013. Nadex plans to return to its regular listing schedule for these contracts on January 7, 2013.