Nadex Product Schedule for the US Thanksgiving Holiday on November 24, 2011 and Amended Hours for Friday, November 25, 2011

Nadex will observe the following modified holiday schedule for the week of November 21, 2011:

Monday, November 21, 2011: The Exchange will observe regular business hours. All Weekly contracts listed on this date will have a settlement date of Friday of the current week, with the exception of any contracts not available for trading on Friday, which will have a settlement date of Wednesday of the current week.

Thursday, November 24, 2011: The Exchange will be closed for Thursday’s trade date.

Friday, November 25, 2011: The Exchange will open at 8:00 am ET. Nadex will observe the following modified schedule:

• All US 500, US Tech 100, US SmallCap 2000, and Wall St 30 contracts will open at 8:00am ET and close at 1:15pm ET; intraday contracts which normally expire at 2pm, 3pm, and 4pm ET will not be offered on this date;

• All FTSE 100® and Germany 30 contracts will open at 8:00am ET and close at 1:00pm ET; intraday contracts which normally expire at 2pm, 3pm and 4pm ET will not be offered on this date;

• All Corn and Soybean contracts will open at their regular time of 10:30am ET and close at 1:00pm ET;

• All Crude and Natural Gas contracts will open at 8am ET and close at 1:45pm ET;

• All Gold, Silver, and Copper contracts will open at 8am ET and close at their regular times;

• All Currency contracts will open at 8am ET and close at their regular times;

• No Korea 200 or Japan 225 contracts will be offered on this trade date.

Nadex will return to its regular listing schedule for trade date Monday, November 28, 2011.