When a Clearing Member is long or short any amount of any Contract at the end of the day, as indicated by the recap ledger prepared by the Clearing House, settlement shall be made with the Clearing House to the settlement price for that day, and such Clearing Member shall be liable to pay to, or entitled to collect from, the Clearing House any loss or profit, as the case may be, represented by the difference between the price at which the Contract was bought or sold and the settlement price of the Contract at the end of the day.