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V-Lab

Simpson Manufacturing Co Inc GJR-GARCH Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

34.70%

decreased by 1.41%

1 Week

34.80%

decreased by 1.31%

1 Month

35.15%

decreased by 0.96%

Analysis last updated: Friday, August 21, 2026 at 11:07 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Simpson Manufacturing Co Inc GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 26, 1994 to Aug 21, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 235% more than equivalent positive returns.

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1533
13.27***
α

ARCH

Response to squared shocks

0.0362
15.99***
β

GARCH

Volatility persistence

0.8923
196.79***
γ

leverage

Additional response to negative shocks

0.0851
12.63***

Persistence:

0.971

Half-life:

24 days