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V-Lab

Bristol-Myers Squibb Co Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Monday, July 13th, 2026

1 Day

29.83%

decreased by 1.31%

1 Week

29.78%

decreased by 1.36%

1 Month

29.65%

decreased by 1.49%

Analysis last updated: Friday, July 10, 2026 at 10:53 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Bristol-Myers Squibb Co S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Jul 10, 2026

Model Insight

This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 9 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.0039
8.44***
α

ARCH

Response to squared shocks

0.0831
8.08***
β

GARCH

Volatility persistence

0.8455
45.48***
γi Spline Coefficients
K=9
γ1-0.0032
-0.09
γ20.0835
1.64
γ3-0.1972
-6.52***
γ40.1901
7.08***
γ5-0.1194
-3.57***
γ60.1169
2.61***
γ7-0.1466
-2.82***
γ80.1260
2.60***
γ9-0.0676
-2.14**

Persistence:

0.929

Half-life:

9 days