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Broadcom Inc GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, September 15th, 2026

1 Day

37.96%

increased by 5.04%

1 Week

37.97%

increased by 5.05%

1 Month

38.00%

increased by 5.08%

Analysis last updated: Monday, September 14, 2026 at 09:20 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Broadcom Inc GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 6, 2009 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 25 trading days, meaning a shock loses half its impact after approximately 25 days. Returns follow a Student-t distribution with v = 4.74 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 25-day half-lifev = 4.74 · fat tails
ParamValuet-stat
ωconst5.7745
1.26
αARCH0.0689
4.10***
βGARCH0.9725
44.99***
νDF4.7443
1.21

0.972

Persistence

25d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

5.7745
1.26
α

ARCH

Response to squared shocks

0.0689
4.10***
β

GARCH

Volatility persistence

0.9725
44.99***
ν

DF

Student-t tail thickness

4.7443
1.21

Persistence:

0.972

Half-life:

25 days