Suppose that the price of Asset X at close of trading yesterday was $300 and its volatility
Question:
Suppose that the price of Asset X at close of trading yesterday was $300 and its volatility was estimated as 1.3% per day. The price of X at the close of trading today is $298. Suppose further that the price of Asset Y at the close of trading yesterday was $8, its volatility was estimated as 1.5% per day, and its correlation with X was estimated as 0.8. The price of Y at the close of trading today is unchanged at $8. Update the volatility of X and Y and the correlation between X and Y using
(a) The EWMA model with l= 0.94
(b) The GARCH(1,1) model with w = 0.000002, a= 0.04, and b= 0.94.
In practice, is the w parameter likely to be the same for X and Y?
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a b The proportional change in the price of X is 2300 000667 Using the EWMA model the variance is up...View the full answer
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