Nikkei Stock Average Volatility Index

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	param	t-stat
$ω$	0.0864	11.72
$α$	0.1234	17.72
$β$	0.8769	202.62
$γ$	-0.0007	-0.07

V-Lab

Sigma Koki Co Ltd GJR-GARCH Volatility Analysis

Volatility Prediction for Monday, February 16th, 2026:37.76% (+3.11%)

Date Range:

Parameter Estimates

News Impact Curve

Volatility Forecasts

Other Sigma Koki Co Ltd Analyses