V-Lab
Simon Property Group Inc MF2-GARCH Volatility Analysis
Volatility prediction for Friday, October 2nd, 2026
1 Day
17.76%
decreased by 0.68%
1 Week
18.25%
decreased by 0.19%
1 Month
19.52%
increased by 1.08%
Analysis last updated: Thursday, October 1, 2026 at 11:16 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 14, 1993 to Sep 25, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 128% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 128% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 61 | |
| αARCH | 0.0613 | 5.38*** |
| βGARCH | 0.8434 | 51.05*** |
| γleverage | 0.0788 | 4.14*** |
| λ₁tau intercept | 0.0158 | 1.91* |
| λ₂forecast adj. | 0.0306 | 2.47** |
| λ₃tau persistence | 0.9634 | 65.27*** |
0.944
Persistence12d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 61 | |
α ARCH Response to squared shocks | 0.0613 | 5.38*** |
β GARCH Volatility persistence | 0.8434 | 51.05*** |
γ leverage Additional response to negative shocks | 0.0788 | 4.14*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0158 | 1.91* |
λ₂ forecast adj. Forecast performance sensitivity | 0.0306 | 2.47** |
λ₃ tau persistence Long-term factor persistence | 0.9634 | 65.27*** |
Persistence:
0.944
Half-life:
12 days
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