V-Lab
Nitta Corp GJR-GARCH Volatility Analysis
Volatility prediction for Wednesday, September 9th, 2026
1 Day
40.04%
increased by 11.04%
1 Week
40.04%
increased by 11.04%
1 Month
40.03%
increased by 11.03%
Analysis last updated: Wednesday, September 9, 2026 at 07:42 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 20, 1995 to Sep 4, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 155% more than equivalent positive returns.
σ
GJR-GARCH Model
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Leverage: Negative returns increase volatility 155% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.1129 | 4.35*** |
| αARCH | 0.0537 | 5.03*** |
| βGARCH | 0.8868 | 69.96*** |
| γleverage | 0.0833 | 2.76*** |
0.982
Persistence39d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1129 | 4.35*** |
α ARCH Response to squared shocks | 0.0537 | 5.03*** |
β GARCH Volatility persistence | 0.8868 | 69.96*** |
γ leverage Additional response to negative shocks | 0.0833 | 2.76*** |
Persistence:
0.982
Half-life:
39 days
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