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Assuming that yesterday's closing price of the S & P 500 was 1000, the daily logarithmic return volatility estimated using the GARCH (1,1) model was

Assuming that yesterday's closing price of the S & P 500 was 1000, the daily logarithmic return volatility estimated using the GARCH (1,1) model was 1.2 per cent. The parameters of GARCH model are = 0.000002, = 0.06and = 0.91, respectively. If the closing price of the index ends at 1015 today, what is the new volatility estimate?

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