Nadex Adds Additional Strike Levels on a Discretionary Basis on Trade Dates October 23, 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 12.63, Nadex added additional strike levels on a discretionary basis in its Daily US Tech 100 Binary Contracts on October 23, 2013. Nadex returned to its regular listing Schedule for these contracts on October 24, 2013.