V-Lab
Bristol-Myers Squibb Co GAS-GARCH Student T Volatility Analysis
Volatility prediction for Thursday, August 6th, 2026
1 Day
32.12%
increased by 2.80%
1 Week
32.01%
increased by 2.69%
1 Month
31.59%
increased by 2.27%
Analysis last updated: Wednesday, August 5, 2026 at 09:39 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Jul 31, 2026Model 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 = 4.90 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 2.8401 | 4.43*** |
α ARCH Response to squared shocks | 0.0554 | 27.76*** |
β GARCH Volatility persistence | 0.9886 | 367.49*** |
ν DF Student-t tail thickness | 4.8956 | 7.73*** |
Persistence:
0.989
Half-life:
60 days
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