Nadex to Close US Indices Contracts on December 5, 2018 in Observance of the National Day of Mourning

In observance of the passing President George H.W. Bush on the National Day of Mourning on Wednesday, December 5, 2018, and to conform with the listing schedule of the underlying markets upon which certain Nadex contracts are based, Nadex will refrain from listing all Daily and Intraday US Indices contracts (US 500, US SmallCap 2000, US Tech 100, and Wall Street 30) on trade date December 5, 2018. Additionally, Nadex will close trading in its Weekly US Indices contracts on trade date December 5, 2018, commencing at 9:30am ET. All contracts will resume their regular listing schedule at 6:00pm ET on the evening of December 5 for trade date December 6, 2018. This change will not affect the listing schedule of any non-US Index contract.

Also, in accordance with the Market Maker Agreement, Section 4(iv), Nadex will deem the period between 9:30am ET on December 5, 2018 through the close of trading on that day as an Illiquid Market with respect to the Intraday 5-Minute contracts. Market Makers may refrain from quoting during this period.

Nadex submitted an Emergency Action to the Commodity Futures Trading Commission (the “Commission”) on December 3, 2018 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 Commission under the Act notifying of these listing changes.