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V-Lab

Nanjing Vazyme Biotech Co Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Wednesday, August 26th, 2026

1 Day

110.08%

decreased by 10.98%

1 Week

109.73%

decreased by 11.33%

1 Month

108.39%

decreased by 12.67%

Analysis last updated: Wednesday, August 26, 2026 at 07:47 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Nanjing Vazyme Biotech Co Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 15, 2021 to Aug 21, 2026

Model Insight

With persistence 0.992, volatility shocks have a half-life of 90 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 4.13 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

28.0390
4.93***
α

ARCH

Response to squared shocks

0.0983
35.50***
β

GARCH

Volatility persistence

0.9923
771.02***
ν

DF

Student-t tail thickness

4.1341
14.82***

Persistence:

0.992

Half-life:

90 days