V-Lab
PSK Inc GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
81.53%
increased by 3.89%
1 Week
79.98%
increased by 2.34%
1 Month
75.32%
decreased by 2.32%
Analysis last updated: Sunday, August 23, 2026 at 01:03 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 10, 2019 to Aug 21, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 119% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8124 | 8.56*** |
α ARCH Response to squared shocks | 0.0599 | 10.05*** |
β GARCH Volatility persistence | 0.8541 | 118.54*** |
γ leverage Additional response to negative shocks | 0.0710 | 3.87*** |
Persistence:
0.949
Half-life:
13 days
Other GJR-GARCH Analyses on International Equities