Optimal Blue 30-Year Fixed Rate Conforming Mortgage Index MF2-GARCH Volatility Analysis
Volatility prediction for Friday, October 23rd, 2026
1 Day
9.84%
increased by 0.70%
1 Week
10.06%
increased by 0.92%
1 Month
10.60%
increased by 1.46%
Analysis last updated: Friday, October 23, 2026 at 02:33 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 3, 2017 to Oct 16, 2026Model Insight
Volatility shocks decay with a half-life of 3 trading days, meaning a shock loses half its impact after approximately 3 days.
σ
MF2-GARCH Model
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Shock decay: Shocks decay with a 3-day half-life
| Param | Value | t-stat |
|---|---|---|
| mwindow | 46 | |
| αARCH | 0.1318 | 3.68*** |
| βGARCH | 0.6657 | 11.26*** |
| γleverage | 0.0198 | 0.44 |
| λ₁tau intercept | 0.0076 | 1.04 |
| λ₂forecast adj. | 0.0744 | 2.26** |
| λ₃tau persistence | 0.9151 | 21.79*** |
0.807
Persistence3d
Half-lifeσ
MF2-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
m window Rolling window length | 46 | |
α ARCH Response to squared shocks | 0.1318 | 3.68*** |
β GARCH Volatility persistence | 0.6657 | 11.26*** |
γ leverage Additional response to negative shocks | 0.0198 | 0.44 |
λ₁ tau intercept Baseline long-term coefficient | 0.0076 | 1.04 |
λ₂ forecast adj. Forecast performance sensitivity | 0.0744 | 2.26** |
λ₃ tau persistence Long-term factor persistence | 0.9151 | 21.79*** |
Persistence:
0.807
Half-life:
3 days
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