Bristol-Myers Squibb Co GJR-GARCH Volatility Analysis
Volatility prediction for Thursday, October 29th, 2026
1 Day
30.65%
decreased by 0.11%
1 Week
30.54%
decreased by 0.22%
1 Month
30.15%
decreased by 0.61%
Analysis last updated: Wednesday, October 28, 2026 at 10:12 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Oct 23, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 127% more than equivalent positive returns.
σ
GJR-GARCH Model
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Leverage: Negative returns increase volatility 127% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0684 | 4.18*** |
| αARCH | 0.0394 | 3.59*** |
| βGARCH | 0.9136 | 74.53*** |
| γleverage | 0.0500 | 2.56** |
0.978
Persistence31d
Half-lifeσ
GJR-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0684 | 4.18*** |
α ARCH Response to squared shocks | 0.0394 | 3.59*** |
β GARCH Volatility persistence | 0.9136 | 74.53*** |
γ leverage Additional response to negative shocks | 0.0500 | 2.56** |
Persistence:
0.978
Half-life:
31 days
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