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V-Lab

iShares National AMT-Free Muni Bond ETF MF2-GARCH Volatility Analysis

Volatility prediction for Monday, July 27th, 2026

1 Day

4.98%

decreased by 0.24%

1 Week

4.97%

decreased by 0.25%

1 Month

4.92%

decreased by 0.30%

Analysis last updated: Friday, July 24, 2026 at 10:38 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of iShares National AMT-Free Muni Bond ETF MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Sep 10, 2007 to Jul 24, 2026

Model Insight

This asset exhibits a notable leverage effect: negative returns increase next-day volatility 72% more than equivalent positive returns.

σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

111
α

ARCH

Response to squared shocks

0.1059
21.56***
β

GARCH

Volatility persistence

0.8232
171.71***
γ

leverage

Additional response to negative shocks

0.0762
11.93***
λ₁

tau intercept

Baseline long-term coefficient

0.0180
8.22***
λ₂

forecast adj.

Forecast performance sensitivity

0.7658
9.53***
λ₃

tau persistence

Long-term factor persistence

0.0000
0.00

Persistence:

0.967

Half-life:

21 days