Nadex Adds Additional Strike Levels on a Discretionary Basis on Trade Date August 19, 2013

Pursuant to Section 5c(c)(1) of the Commodity Exchange Act, and Commission Regulation §40.6(d), and by the authority granted by Nadex Rules in 12.13 and 12.15, Nadex added additional strike levels on a discretionary basis in its Daily Corn and Soybeans Binary Contracts on trade date August 19, 2013. Nadex returned to its regular listing schedule for these contracts on August 20, 2013.