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Lucia2023-04-25 09:56:10
同学你好,表示X,Y在第n-1天的收益率。
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那应该是50和12么?为什么是收益率1/12,-1/25呢
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同学你好,老师说粗了,应该是收益率,X at the close of trading yesterday was USD 50 ,X昨天的收盘价是50,The price of X at the close of trading today are USD 48 今天的收盘价是48,所以X的收益率就是(48-50)/50=-2/50
the price of asset Y at the close of trading yesterday was USD 12 ,Y昨天的收盘价是12,he price of X at the close of trading today are USD 13 ,今天的收盘价是13,所以Y的收益率就是(13-12)/12=1/12
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