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V-Lab

SK Hynix Inc Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

95.70%

decreased by 2.33%

1 Week

95.33%

decreased by 2.70%

1 Month

93.88%

decreased by 4.15%

Analysis last updated: Friday, September 11, 2026 at 08:34 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of SK Hynix Inc S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 26, 1996 to Sep 4, 2026

Model Insight

With persistence 0.995, volatility shocks have a half-life of 135 trading days (~0.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

High persistence: persistence 0.995, shock half-life ~135 days
ParamValuet-stat
ωconst1.2093
6.61***
αARCH0.0430
8.84***
βGARCH0.9519
177.40***
γi Spline Coefficients
K=1
γ10.0009
2.25**

0.995

Persistence

135d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.2093
6.61***
α

ARCH

Response to squared shocks

0.0430
8.84***
β

GARCH

Volatility persistence

0.9519
177.40***
γi Spline Coefficients
K=1
γ10.0009
2.25**

Persistence:

0.995

Half-life:

135 days