Nadex Adds Additional Strike Levels on a Discretionary Basis on Trade Date November 19, 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 12.77, Nadex added additional strike levels on a discretionary basis in its Weekly Jobless Claims Binary Contracts for Trade Date November 19, 2012. Nadex plans to return to its regular listing schedule for these contracts on November 26, 2012.