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Sequoia Global Value ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, September 14th, 2026

1 Day

12.46%

increased by 0.35%

1 Week

12.35%

increased by 0.24%

1 Month

12.25%

increased by 0.14%

Analysis last updated: Saturday, September 12, 2026 at 02:38 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Sequoia Global Value ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 18, 2024 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 2 trading days, meaning a shock loses half its impact after approximately 2 days. Returns follow a Student-t distribution with v = 6.85 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 2-day half-lifev = 6.85 · fat tails
ParamValuet-stat
ωconst0.5915
4.05***
αARCH0.1220
1.39
βGARCH0.6920
6.16***
νDF6.8476
0.27

0.692

Persistence

2d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.5915
4.05***
α

ARCH

Response to squared shocks

0.1220
1.39
β

GARCH

Volatility persistence

0.6920
6.16***
ν

DF

Student-t tail thickness

6.8476
0.27

Persistence:

0.692

Half-life:

2 days