问题
单项选择题
A trader is long four July gold futures contracts, each with a contract size of 300 oz. If the price of July gold increases from $380.20 to $381.00 per ounce the change in the margin balance will be :
A．
| A. $960. |
B．
| B. - $960. |
C．
| C. $240. |
答案
参考答案：A
解析：4 × 300 × (381 -380.20) = $960.