Philippines Stock Exchange PSEi Index MF2-GARCH Volatility Analysis
Volatility prediction for Friday, October 16th, 2026
1 Day
19.88%
decreased by 0.89%
1 Week
19.84%
decreased by 0.93%
1 Month
19.76%
decreased by 1.01%
Analysis last updated: Friday, October 16, 2026 at 11:49 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 1, 1990 to Oct 8, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 157% more than equivalent positive returns.
σ
MF2-GARCH Model
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Leverage: Negative returns increase volatility 157% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| mwindow | 51 | |
| αARCH | 0.0552 | 2.82*** |
| βGARCH | 0.8511 | 28.14*** |
| γleverage | 0.0868 | 4.50*** |
| λ₁tau intercept | 0.0024 | 0.65 |
| λ₂forecast adj. | 0.0060 | 1.45 |
| λ₃tau persistence | 0.9927 | 163.21*** |
0.950
Persistence13d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 51 | |
α ARCH Response to squared shocks | 0.0552 | 2.82*** |
β GARCH Volatility persistence | 0.8511 | 28.14*** |
γ leverage Additional response to negative shocks | 0.0868 | 4.50*** |
λ₁ tau intercept Baseline long-term coefficient | 0.0024 | 0.65 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0060 | 1.45 |
λ₃ tau persistence Long-term factor persistence | 0.9927 | 163.21*** |
Persistence:
0.950
Half-life:
13 days
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