V-Lab
Bristol-Myers Squibb Co EGARCH Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
27.89%
increased by 0.02%
1 Week
28.02%
increased by 0.15%
1 Month
28.49%
increased by 0.62%
Analysis last updated: Thursday, September 10, 2026 at 09:50 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 4, 2026Model Insight
This asset exhibits a notable leverage effect: negative returns increase next-day volatility 92% more than equivalent positive returns.
σ
EGARCH Model
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Leverage: Negative returns increase volatility 92% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0285 | 3.13*** |
| αARCH | 0.1253 | 6.90*** |
| βGARCH | 0.9790 | 167.47*** |
| γleverage | -0.0395 | -2.78*** |
0.979
Persistence33d
Half-lifeσ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0285 | 3.13*** |
α ARCH Response to squared shocks | 0.1253 | 6.90*** |
β GARCH Volatility persistence | 0.9790 | 167.47*** |
γ leverage Additional response to negative shocks | -0.0395 | -2.78*** |
Persistence:
0.979
Half-life:
33 days
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