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Goldman Sachs Equal Weight US Large Cap Equity ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, November 10th, 2026

1 Day

23.16%

increased by 4.74%

1 Week

22.80%

increased by 4.38%

1 Month

21.60%

increased by 3.18%

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 ·

All

graph of Goldman Sachs Equal Weight US Large Cap Equity ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Sep 15, 2017 to Nov 6, 2026

Model Insight

Volatility shocks decay with a half-life of 21 trading days, meaning a shock loses half its impact after approximately 21 days. Returns follow a Student-t distribution with v = 8.54 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 21-day half-lifev = 8.54 · fat tails
ParamValuet-stat
ωlong-run1.0809
2.46**
αscore0.1355
5.74***
βpersistence0.9680
64.43***
νDF8.5408
1.08

0.968

Persistence

21d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

long-run

Long-run variance given a price move

1.0809
2.46**
α

score

Weight on the scaled score

0.1355
5.74***
β

persistence

Volatility persistence

0.9680
64.43***
ν

DF

Student-t tail thickness

8.5408
1.08

Persistence:

0.968

Half-life:

21 days