Nadex Adds Additional Strike Levels on a Discretionary Basis on Trade Dates October 8 and 10, 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 12.59, 12.61, 12.63, and 12.65, Nadex added additional strike levels on a discretionary basis in its Daily US Tech 100 Binary Contracts for trade date October 8, 2013. Nadex returned to its regular listing Schedule for these contracts on October 9, 2013. Additionally, Nadex added additional strike levels in its Daily Wall Street 30, US Tech 100, US 500 and US SmallCap 2000 Binary Contracts on October 10, 2013. Nadex returned to its regular listing Schedule for these contracts on October 11, 2013.