Nadex Adds Strikes on a Discretionary Basis in its Daily US Indices, EUR/USD and Silver Binary Contracts for Trade Date November 1, 2011

Pursuant to Section 5c(c)(1) of the Commodity Exchange Act, Commission Regulation §40.6(d), ), and by the authority granted by Nadex Rules 12, Nadex has added additional strike levels on a discretionary basis in its Daily US 500, US Tech 100, US SmallCap 2000, Wall St 30, EUR/USD and Silver Binary Contracts for trade date November 1, 2011 due to volatility in the underlying markets on those days. Nadex returned to its regular listing schedule on November 2, 2011.