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V-Lab
V-Lab

Zhihu Inc MF2-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

77.96%

decreased by 37.17%

1 Week

64.58%

decreased by 50.55%

1 Month

53.25%

decreased by 61.88%

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

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Zhihu Inc MF2-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

This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.

σ

MF2-GARCH Model

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Inverse leverage: volatility responds almost entirely to positive returns
ParamValuet-stat
mwindow66
αARCH0.4176
3.82***
βGARCH0.3894
5.06***
γleverage-0.3549
-3.33***
λ₁tau intercept0.0034
0.06
λ₂forecast adj.0.0000
0.00
λ₃tau persistence0.9992
134.95***

0.629

Persistence

1d

Half-life
σ

MF2-GARCH Model

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ParameterValuet-statistic
m

window

Rolling window length

66
α

ARCH

Response to squared shocks

0.4176
3.82***
β

GARCH

Volatility persistence

0.3894
5.06***
γ

leverage

Additional response to negative shocks

-0.3549
-3.33***
λ₁

tau intercept

Baseline long-term coefficient

0.0034
0.06
λ₂

forecast adj.

Forecast performance sensitivity

0.0000
0.00
λ₃

tau persistence

Long-term factor persistence

0.9992
134.95***

Persistence:

0.629

Half-life:

1 days