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V-Lab

Sigma Koki Co Ltd Zero Slope Spline-GARCH Volatility Analysis
Volatility Prediction for Thursday, February 12th, 2026:18.01% (-4.95%)
Analysis last updated: Wednesday, February 11, 2026 at 10:48 PM UTC
Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Sigma Koki Co Ltd S0GARCH
paramt-stat
ω1.70065.96
α0.26706.23
β0.532510.50
γ1-0.0422-0.86
γ2-0.0032-0.04
γ30.14432.47
γ4-0.2163-3.17
γ50.24234.05
γ6-0.1279-2.88
γ7-0.1269-2.83
γ80.21536.13
Estimation Period:
Nov 29, 1996 to Feb 10, 2026
Impact of return on volatility tomorrow
Volatility Forecasts