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V-Lab

Bank of America Corp Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Tuesday, August 25th, 2026

1 Day

22.00%

decreased by 0.13%

1 Week

22.63%

increased by 0.50%

1 Month

24.48%

increased by 2.35%

Analysis last updated: Monday, August 24, 2026 at 09:38 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Bank of America Corp S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 1990 to Aug 21, 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 17 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.2024
8.25***
α

ARCH

Response to squared shocks

0.0903
7.72***
β

GARCH

Volatility persistence

0.8703
61.09***
γi Spline Coefficients
K=8
γ10.0629
2.35**
γ2-0.0445
-0.93
γ3-0.1078
-2.87***
γ40.2174
8.72***
γ5-0.2318
-7.48***
γ60.1594
5.08***
γ7-0.0783
-3.07***
γ80.0283
1.54

Persistence:

0.961

Half-life:

17 days