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

Volatility prediction for Thursday, October 29th, 2026

1 Day

33.08%

decreased by 0.12%

1 Week

32.96%

decreased by 0.24%

1 Month

32.49%

decreased by 0.71%

Analysis last updated: Wednesday, October 28, 2026 at 10:12 PM UTC

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Date Range:

from

10/28/2024

to

10/28/2026

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 Oct 23, 2026

Model Insight

Volatility shocks decay with a half-life of 61 trading days, meaning a shock loses half its impact after approximately 61 days. Returns follow a Student-t distribution with v = 5.18 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 61-day half-lifev = 5.18 · fat tails
ParamValuet-stat
ωlong-run2.8898
1.17
αscore0.0563
7.06***
βpersistence0.9887
96.35***
νDF5.1799
1.83*

0.989

Persistence

61d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

long-run

Long-run variance given a price move

2.8898
1.17
α

score

Weight on the scaled score

0.0563
7.06***
β

persistence

Volatility persistence

0.9887
96.35***
ν

DF

Student-t tail thickness

5.1799
1.83*

Persistence:

0.989

Half-life:

61 days