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iShares US Real Estate ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, September 8th, 2026

1 Day

13.14%

increased by 0.11%

1 Week

13.38%

increased by 0.35%

1 Month

14.21%

increased by 1.18%

Analysis last updated: Friday, September 4, 2026 at 10:33 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of iShares US Real Estate ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jun 16, 2000 to Sep 4, 2026

Model Insight

Volatility shocks decay with a half-life of 50 trading days, meaning a shock loses half its impact after approximately 50 days. Returns follow a Student-t distribution with v = 9.22 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 50-day half-lifev = 9.22 · fat tails
ParamValuet-stat
ωconst1.6026
2.26**
αARCH0.1018
8.42***
βGARCH0.9862
154.60***
νDF9.2157
1.39

0.986

Persistence

50d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.6026
2.26**
α

ARCH

Response to squared shocks

0.1018
8.42***
β

GARCH

Volatility persistence

0.9862
154.60***
ν

DF

Student-t tail thickness

9.2157
1.39

Persistence:

0.986

Half-life:

50 days