Nadex Adds Additional Strike Levels on a Discretionary Basis on Trade Dates January 30, 2013 and February 1, 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 12.13, 12.15 and 12.39, Nadex added additional strike levels on a discretionary basis in its Weekly Corn and Soybean Binary Contracts, and its Daily Soybean Binary Contracts on trade date January 30, 2013, and in its Daily EUR/JPY Binary Contracts on trade date February 1, 2013. Nadex returned to its regular listing schedule for its Daily Soybean Binary Contracts on January 31, 2013. Nadex plans to return to its regular listing schedule for its Weekly Corn and Soybean Binary Contracts and its Daily EUR/JPY Binary Contracts on February 4, 2013.