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V-Lab
V-Lab

Bristol-Myers Squibb Co GAS-GARCH Student T Volatility Analysis

Volatility prediction for Wednesday, September 16th, 2026

1 Day

24.25%

decreased by 0.82%

1 Week

24.31%

decreased by 0.76%

1 Month

24.52%

decreased by 0.55%

Analysis last updated: Tuesday, September 15, 2026 at 09:21 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Bristol-Myers Squibb Co GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 60 trading days, meaning a shock loses half its impact after approximately 60 days. Returns follow a Student-t distribution with v = 4.91 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 60-day half-lifev = 4.91 · fat tails
ParamValuet-stat
ωconst2.8140
1.11
αARCH0.0550
6.88***
βGARCH0.9885
91.72***
νDF4.9084
1.91*

0.989

Persistence

60d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

2.8140
1.11
α

ARCH

Response to squared shocks

0.0550
6.88***
β

GARCH

Volatility persistence

0.9885
91.72***
ν

DF

Student-t tail thickness

4.9084
1.91*

Persistence:

0.989

Half-life:

60 days