The Exchange may prescribe, for certain Contracts, Price Limits which are designed to temporarily restrict trading when the Market(s) becomes volatile. "Price Limit" refers to the maximum price advanced or declined from the previous Trading Day's settlement price permitted during any trading session(s), as provided under the relevant Contract Specifications. If, in the course of any Trading Day, the price for any Contract reaches any of its Price Limits, the Exchange may signal a Cooling Off Period.

With respect to an Option Contract, trading in the Option Contract shall be halted:

"Cooling Off Period" means a period of ten (10) minutes or any other period as set forth in the relevant Contract Specifications during which each Contract may be traded at or within its Price Limits. Trading may resume upon the lapse of the Cooling Off Period, for the remainder of the Trading Day, or such other period as may be prescribed in the relevant Contract Specifications.

Amended on 26 January 200726 January 2007 and 16 July 201216 July 2012.