Taisei Corp GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, July 21st, 2026
1 Day
47.76%
increased by 4.70%
1 Week
47.49%
increased by 4.43%
1 Month
46.53%
increased by 3.47%
Analysis last updated: Sunday, July 19, 2026 at 12:36 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 1990 to Jul 17, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 120% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.1583 | 17.77*** |
α ARCH Response to squared shocks | 0.0656 | 21.93*** |
β GARCH Volatility persistence | 0.8718 | 264.01*** |
γ leverage Additional response to negative shocks | 0.0786 | 11.06*** |
Persistence:
0.977
Half-life:
29 days
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