Taisei Corp GARCH Volatility Analysis
Volatility prediction for Thursday, October 8th, 2026
1 Day
31.22%
decreased by 0.48%
1 Week
31.71%
increased by 0.01%
1 Month
33.31%
increased by 1.61%
Analysis last updated: Thursday, October 8, 2026 at 07:44 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 1990 to Oct 2, 2026Model Insight
Volatility shocks decay with a half-life of 26 trading days, meaning a shock loses half its impact after approximately 26 days.
σ
GARCH Model
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Shock decay: Shocks decay with a 26-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.1665 | 4.26*** |
| αARCH | 0.1034 | 9.39*** |
| βGARCH | 0.8698 | 57.94*** |
0.973
Persistence26d
Half-lifeσ
GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1665 | 4.26*** |
α ARCH Response to squared shocks | 0.1034 | 9.39*** |
β GARCH Volatility persistence | 0.8698 | 57.94*** |
Persistence:
0.973
Half-life:
26 days
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