Nikkei Stock Average Volatility Index

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	param	t-stat
$ω$	5.2149	6.50
$α$	0.0754	32.00
$β$	0.9835	355.95
$ν$	5.7212	7.55

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Obayashi Corp GAS-GARCH Student T Volatility Analysis

Volatility Prediction for Monday, December 22nd, 2025:25.02% (+0.75%)

Date Range:

Parameter Estimates

Other Obayashi Corp Analyses