Dow Jones Transportation Average MF2-GARCH Volatility Analysis
Volatility prediction for Friday, October 23rd, 2026
1 Day
18.18%
increased by 0.38%
1 Week
18.62%
increased by 0.82%
1 Month
19.84%
increased by 2.04%
Analysis last updated: Friday, October 23, 2026 at 12:05 AM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Oct 16, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 266% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 266% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 71 | |
| αARCH | 0.0336 | 2.96*** |
| βGARCH | 0.8819 | 62.01*** |
| γleverage | 0.0894 | 4.83*** |
| λ₁tau intercept | 0.0083 | 1.63 |
| λ₂forecast adj. | 0.0157 | 2.27** |
| λ₃tau persistence | 0.9801 | 107.37*** |
0.960
Persistence17d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 71 | |
α ARCH Response to squared shocks | 0.0336 | 2.96*** |
β GARCH Volatility persistence | 0.8819 | 62.01*** |
γ leverage Additional response to negative shocks | 0.0894 | 4.83*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0083 | 1.63 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0157 | 2.27** |
λ₃ tau persistence Long-term factor persistence | 0.9801 | 107.37*** |
Persistence:
0.960
Half-life:
17 days
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