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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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Date Range:

from

10/22/2024

to

10/22/2026

6M ·

1Y ·

2Y ·

5Y ·

All

graph of Optimal Blue 30-Year Fixed Rate Conforming Mortgage Index MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 3, 2017 to Oct 16, 2026

Model 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

Tap to view equation

Shock decay: Shocks decay with a 3-day half-life
ParamValuet-stat
mwindow46
αARCH0.1318
3.68***
βGARCH0.6657
11.26***
γleverage0.0198
0.44
λ₁tau intercept0.0076
1.04
λ₂forecast adj.0.0744
2.26**
λ₃tau persistence0.9151
21.79***

0.807

Persistence

3d

Half-life
σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-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