Nadex Adds Strikes on a Discretionary Basis in its Daily Wall St 30, US Tech 100, and US SmallCap 2000 Binary Contracts for Trade Date November 23, 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 Wall St 30, US Tech 100, and US SmallCap 2000 Binary Contracts for trade date November 23, 2011 due to volatility in the underlying markets on those days. Nadex was closed on November 24, 2011 for the Thanksgiving holiday, but returned to its regular listing schedule on November 25, 2011.