Self-Certification to Amend Rule 12.1

Pursuant to Section 5c(c)(1) of the Commodity Exchange Act, as amended (“Act”), and section §40.6(a) of the regulations promulgated by the Commodity Futures Trading Commission (the “Commission”) under the Act (the “Regulations”), North American Derivatives Exchange, Inc. (“Nadex”, the “Exchange”) hereby submits to the Commission its amendments to the Nadex Rulebook in Rule 12.1, to add a provision which authorizes Nadex to halt trading, and/or refrain from listing contracts, in its market(s) when the corresponding underlying market upon which the Nadex contract is based is halted due to a lock limit up or limit down. Additionally, the submission removes from this Rule the sole reference to “Binary Swap Contracts” and replaces with “Binary Contracts”, as Nadex’s contracts are commonly known throughout the Rulebook. Finally, the submission amends the footnote in Rule 12.1 relating to the OCR Volume Threshold Level to note that the relief granted in 2016 sustaining the level at 250 contracts was extended in September 2017, and will remain in effect until September 28, 2020. The amendments will become effective September 18, 2018.