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V-Lab

Korea Cast Iron Pipe Industries Co Ltd GJR-GARCH Volatility Analysis

Volatility prediction for Friday, July 24th, 2026

1 Day

33.13%

decreased by 0.33%

1 Week

33.41%

decreased by 0.05%

1 Month

34.49%

increased by 1.03%

Analysis last updated: Friday, July 24, 2026 at 07:32 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Korea Cast Iron Pipe Industries Co Ltd GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 3, 1990 to Jul 16, 2026

Model Insight

With persistence 0.993, volatility shocks have a half-life of 97 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 60% more than negative returns

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0694
17.60***
α

ARCH

Response to squared shocks

0.0968
21.46***
β

GARCH

Volatility persistence

0.9143
382.07***
γ

leverage

Additional response to negative shocks

-0.0364
-5.08***

Persistence:

0.993

Half-life:

97 days