Nadex Amends its Rulebook Regarding Authorized Trader Resignation, Provide for Adjustment of Corn and Soybean Underlying Delivery Month, Amends Name of Certain Index Contracts, Corrects Typographical Error in Holiday Product Schedule Guidelines

Pursuant to Section 5c(c)(1) of the Commodity Exchange Act, and Commission Regulation §40.6(a), Nadex has submitted to the Commission amendments to its Rulebook. Specifically, Rule 3.5 (Authorized Traders) is being amended to clarify that with respect to an entity account, either the Trading Member or the Authorized Trader may provide written notice of the Authorized Trader’s resignation, and Rules 12.12 – 12.15 (Corn and Soybean Variable Payout and Binary Contracts) to provide for discretionary adjustment of the Underlying delivery month for its Corn and Soybean Variable Payout and Binary contracts based on the trading activity of the Underlying market. Additionally, Nadex is removing “Nadex” from the title of its Germany 30 (Rule 12.51), Japan 225 (Rule 12.55), US 500 (Rule 12.59), US SmallCap 2000 (Rule 12.61), US Tech 100 (Rule 12.63), and Wall Street 30 (Rule 12.65) Binary contracts in order to maintain consistency with the naming of its other products, and corrects a typographical error in its Holiday Product Schedule Guidelines.

Pursuant to Commission Regulation §40.6(a)(3), these new Rules and amendments would become effective August 12, 2013.