Nadex Adds Additional Strike Levels on a Discretionary Basis on Trade Date July 12, 2012

Pursuant to Section 5c(c)(1) of the Commodity Exchange Act, and Commission Regulation §40.6(d)(2)(iv), and by the authority granted by Nadex Rules in 12.27 and 12.63, Nadex added additional strike levels on a discretionary basis in its Daily US Tech 100 and AUD/USD Binary Contracts for Trade Date July 12, 2012 due to volatility in the underlying markets on that day. Nadex returned to its regular listing schedule for these contracts on July 13, 2012.