Nadex Adds Additional Strike Levels on a Discretionary Basis on Trade Dates October 17 and 18, 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 12.5, 12.31, and 12.63, Nadex added additional strike levels on a discretionary basis in its Daily Gold and GBP/USD Binary Contracts for trade date October 17, 2013. Nadex returned to its regular listing Schedule for these contracts on October 18, 2013. Additionally, Nadex added additional strike levels in its Daily US Tech 100 Binary Contracts on October 18, 2013. Nadex plans to return to its regular listing Schedule for these contracts on October 21, 2013.