Inpex Corp MF2-GARCH Volatility Analysis
Volatility prediction for Thursday, October 22nd, 2026
1 Day
31.43%
decreased by 1.63%
1 Week
32.58%
decreased by 0.48%
1 Month
34.06%
increased by 1.00%
Analysis last updated: Thursday, October 22, 2026 at 07:23 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 17, 2004 to Oct 16, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 98% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 98% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 26 | |
| αARCH | 0.0864 | 3.44*** |
| βGARCH | 0.6777 | 12.30*** |
| γleverage | 0.0845 | 2.00** |
| λ₁tau intercept | 0.0871 | 1.81* |
| λ₂forecast adj. | 0.0635 | 3.10*** |
| λ₃tau persistence | 0.9218 | 33.42*** |
0.806
Persistence3d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 26 | |
α ARCH Response to squared shocks | 0.0864 | 3.44*** |
β GARCH Volatility persistence | 0.6777 | 12.30*** |
γ leverage Additional response to negative shocks | 0.0845 | 2.00** |
λ₁ tau intercept Baseline long-term coefficient | 0.0871 | 1.81* |
λ₂ forecast adj. Forecast performance sensitivity | 0.0635 | 3.10*** |
λ₃ tau persistence Long-term factor persistence | 0.9218 | 33.42*** |
Persistence:
0.806
Half-life:
3 days
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