V-Lab
Nissui Corp GARCH Volatility Analysis
Volatility prediction for Friday, August 7th, 2026
1 Day
35.97%
increased by 4.50%
1 Week
36.12%
increased by 4.65%
1 Month
36.60%
increased by 5.13%
Analysis last updated: Friday, August 7, 2026 at 07:15 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 1990 to Jul 31, 2026Model Insight
Volatility shocks decay with a half-life of 25 trading days, meaning a shock loses half its impact after approximately 25 days.
σ
GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1630 | 22.77*** |
α ARCH Response to squared shocks | 0.0955 | 33.76*** |
β GARCH Volatility persistence | 0.8770 | 263.51*** |
Persistence:
0.972
Half-life:
25 days
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