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V-Lab

Micron Technology Inc GJR-GARCH Volatility Analysis

Volatility prediction for Friday, October 23rd, 2026

1 Day

62.23%

increased by 3.50%

1 Week

62.20%

increased by 3.47%

1 Month

62.08%

increased by 3.35%

Analysis last updated: Thursday, October 22, 2026 at 09:25 PM UTC

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Date Range:

from

10/22/2024

to

10/22/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Micron Technology Inc GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Oct 16, 2026

Model Insight

With persistence 0.993, volatility shocks have a half-life of 95 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 117% more than positive returns

σ

GJR-GARCH Model

Tap to view equation

High persistence: persistence 0.993, shock half-life ~95 daysLeverage: Negative returns increase volatility 117% more than positive returns
ParamValuet-stat
ωconst0.1036
4.18***
αARCH0.0244
4.48***
βGARCH0.9542
204.72***
γleverage0.0284
2.33**

0.993

Persistence

95d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1036
4.18***
α

ARCH

Response to squared shocks

0.0244
4.48***
β

GARCH

Volatility persistence

0.9542
204.72***
γ

leverage

Additional response to negative shocks

0.0284
2.33**

Persistence:

0.993

Half-life:

95 days