Matsuda Sangyo Co Ltd EGARCH Volatility Analysis
Volatility prediction for Monday, October 19th, 2026
1 Day
53.47%
increased by 1.24%
1 Week
53.76%
increased by 1.53%
1 Month
54.80%
increased by 2.57%
Analysis last updated: Saturday, October 17, 2026 at 11:47 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 28, 1995 to Oct 16, 2026Model Insight
Volatility shocks decay with a half-life of 43 trading days, meaning a shock loses half its impact after approximately 43 days.
σ
EGARCH Model
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Shock decay: Shocks decay with a 43-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0446 | 5.65*** |
| αARCH | 0.1740 | 8.09*** |
| βGARCH | 0.9838 | 284.27*** |
| γleverage | -0.0144 | -0.71 |
0.984
Persistence43d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0446 | 5.65*** |
α ARCH Response to squared shocks | 0.1740 | 8.09*** |
β GARCH Volatility persistence | 0.9838 | 284.27*** |
γ leverage Additional response to negative shocks | -0.0144 | -0.71 |
Persistence:
0.984
Half-life:
43 days
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