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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

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 Aug 21, 2026

Model 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

ParameterValuet-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