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V-Lab
V-Lab

Zhihu Inc GJR-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

82.07%

decreased by 13.51%

1 Week

81.91%

decreased by 13.67%

1 Month

81.48%

decreased by 14.10%

Analysis last updated: Friday, September 11, 2026 at 07:17 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Zhihu Inc GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Apr 22, 2022 to Sep 4, 2026

Model Insight

Volatility shocks decay with a half-life of 11 trading days, meaning a shock loses half its impact after approximately 11 days.

σ

GJR-GARCH Model

Tap to view equation

Shock decay: Shocks decay with a 11-day half-life
ParamValuet-stat
ωconst1.6493
2.80***
αARCH0.2325
2.30**
βGARCH0.6704
10.69***
γleverage0.0665
0.24

0.936

Persistence

11d

Half-life
σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.6493
2.80***
α

ARCH

Response to squared shocks

0.2325
2.30**
β

GARCH

Volatility persistence

0.6704
10.69***
γ

leverage

Additional response to negative shocks

0.0665
0.24

Persistence:

0.936

Half-life:

11 days