Nadex Adds Additional Strike Levels on a Discretionary Basis on Trade Date December 27, 2012

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 12.55, Nadex added additional strike levels on a discretionary basis in its Daily Japan 225 Binary Contracts for Trade Date December 27, 2012. Nadex returned to its regular listing schedule for these contracts on December 28, 2012.