Exhibit 8. 1 : Contract Specifications for Foreign Currency Futures Euro Swiss KA Franc Contract Size $125, 000 SET 125, 000 Symbol EC SF Margin Requirements Initial $5, 400 52, 700 Maintenance $4, 000 52, 000 On Monday morning you take a short position in a Euro futures contract . The price of the contract is $1. 48 Per E. At Monday close , the price of the contract is $1. 50 per E. At Tuesday close , the price of the contract is $1.51 per E . On Wednesday morning , the price is $1. 49 per E and you close out your position by taking a long* position in the same Euro Futures contract . Specifically describe the steps ( including margin account impacts ) that occur at each of the following times :" a) Monday Morning* I Monday Evening* [ ) Tuesday Evening* $ ) Wednesday Morning*