Nadex Amends the Underlying Futures Contract Cycle for Various Contracts

Pursuant to Section 5c(c)(1) of the Commodity Exchange Act, and Commission Regulation §40.6(a), Nadex amends the Underlying Futures Contract Cycle for all Natural Gas, RBOB Gas, Gold, Silver, Copper, Corn, Soybeans, FTSE 100, Germany 30, Korea 200, Wall St 30, US Tech 100, and US 500 Contracts, as represented in Rules 12.7, 12.9, 12.16, 12.27, 12.29, 12.31, 12.38, 12.41-12.42, 12.44-12.45, 12.75-12.79, 12.82-12.91. The changes are effective for the start of business on trading day Monday, November 23, 2009.