Carleen2024-01-18 22:33:39
老师:衍生课后题第25题,计算外汇收益,我没太明白答案。有常规公式可以套用吗?
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Simon2024-01-19 09:00:24
同学,上午好。这道题算外汇贡献对total return,正确算法是把公式给展开的,把weight*(1+RFC)*(1+RFX)求和再减1展开。然后按照展开后的公式,去计算外汇部分的收益。
在计算total return时,用公式:weight*(1+RFC)*(1+RFX)求和再减1。weight*(1+R FC)*(1+RFX)求和再减1,就是以下三部分的和(如果把计算公式展开的话):
The weighted asset return is equal to 5.5%, calculated as follows:
(0.50 × 10.0%) + (0.25 × 5.0%) + [0.25 × (–3.0%)] = 5.5%.
The weighted currency return is equal to 1.5% calculated as follows:
(0.50 × 0.0%) + (0.25 × 2.0%) + (0.25 × 4.0%) = 1.5%.(这部分是纯外汇)
The weighted cross-productis equal to –0.005%, calculated as follows:
[0.50 × (10.0% × 0.0%)] + [0.25 × (5.0% × 2.0%)] + [0.25 × (–3.0% × 4.0%)] = –0.005%.(这部分是外汇和asset的交叉项)
所以外汇的贡献是1.5%+-0.005%=1.495%≈1.5%。
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