V-Lab
Korea Cast Iron Pipe Industries Co Ltd GJR-GARCH Volatility Analysis
Volatility prediction for Monday, August 24th, 2026
1 Day
23.87%
decreased by 0.44%
1 Week
24.42%
increased by 0.11%
1 Month
26.41%
increased by 2.10%
Analysis last updated: Sunday, August 23, 2026 at 12:08 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 1990 to Aug 21, 2026Model Insight
With persistence 0.993, volatility shocks have a half-life of 96 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Inverse leverage: Positive returns increase volatility 61% more than negative returns
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0693 | 17.57*** |
α ARCH Response to squared shocks | 0.0968 | 21.55*** |
β GARCH Volatility persistence | 0.9142 | 381.57*** |
γ leverage Additional response to negative shocks | -0.0365 | -5.12*** |
Persistence:
0.993
Half-life:
96 days
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