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iShares Select U.S. REIT ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, November 10th, 2026

1 Day

21.04%

increased by 0.73%

1 Week

21.02%

increased by 0.71%

1 Month

20.98%

increased by 0.67%

Analysis last updated: Tuesday, November 10, 2026 at 03:15 AM UTC

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Date Range:

from

11/09/2024

to

11/09/2026

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of iShares Select U.S. REIT ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Feb 2, 2001 to Nov 6, 2026

Model Insight

Volatility shocks decay with a half-life of 48 trading days, meaning a shock loses half its impact after approximately 48 days. Returns follow a Student-t distribution with v = 9.57 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

Shock decay: Shocks decay with a 48-day half-lifev = 9.57 · fat tails
ParamValuet-stat
ωlong-run1.7043
2.53**
αscore0.0966
8.35***
βpersistence0.9856
166.09***
νDF9.5707
1.30

0.986

Persistence

48d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

long-run

Long-run variance given a price move

1.7043
2.53**
α

score

Weight on the scaled score

0.0966
8.35***
β

persistence

Volatility persistence

0.9856
166.09***
ν

DF

Student-t tail thickness

9.5707
1.30

Persistence:

0.986

Half-life:

48 days