V-Lab
NCD Co Ltd/Shinagawa GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
31.85%
decreased by 0.61%
1 Week
33.98%
increased by 1.52%
1 Month
39.50%
increased by 7.04%
Analysis last updated: Saturday, August 22, 2026 at 11:44 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 6, 2000 to Aug 21, 2026Model Insight
Volatility shocks decay with a half-life of 13 trading days, meaning a shock loses half its impact after approximately 13 days.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.4976 | 15.13*** |
α ARCH Response to squared shocks | 0.1328 | 13.87*** |
β GARCH Volatility persistence | 0.8217 | 112.88*** |
γ leverage Additional response to negative shocks | -0.0109 | -0.72 |
Persistence:
0.949
Half-life:
13 days
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