In: Finance
4. Suppose that the price of an asset at close of
trading yesterday was $300 and its volatility was estimated as 1.3%
per day. The price at the close of trading today is $298. Update
the volatility estimate using
(i) The EWMA model with λ = 0.94
(ii) The GARCH(1,1) model with ω = 0.000002, α = 0.04, and β =
0.94.
Ans
1. Using EWMA Model
The new daily volatility is 1.271% per day
2. Using GARCH (1,1)
The new daily volatility is 1.275% per day
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