Exercise 1 1. An investor buys 3 future contracts for WTI (Western Texas Intermediary crude oil). Each contract is for 1,000 barrels, has a $2, 150 initial margin and $1,900 maintenance margin. His trade is executed at $51.30, that day the contract settles at $51.10 and the following two days settlement is $51.00, $52.00 he closes out his trade in the third day at $51.90; describe his three days marking to market cash flows and total holding profit