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

Volatility prediction for Thursday, October 29th, 2026

1 Day

102.89%

increased by 16.29%

1 Week

102.55%

increased by 15.95%

1 Month

101.26%

increased by 14.66%

Analysis last updated: Thursday, October 29, 2026 at 09:07 PM UTC

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Date Range:

from

10/28/2024

to

10/28/2026

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 Oct 23, 2026

Model Insight

With persistence 0.990, volatility shocks have a half-life of 72 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 4.68 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

High persistence: persistence 0.990, shock half-life ~72 daysv = 4.68 · fat tails
ParamValuet-stat
ωlong-run27.6516
1.05
αscore0.1175
7.70***
βpersistence0.9904
129.23***
νDF4.6757
2.58***

0.990

Persistence

72d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

long-run

Long-run variance given a price move

27.6516
1.05
α

score

Weight on the scaled score

0.1175
7.70***
β

persistence

Volatility persistence

0.9904
129.23***
ν

DF

Student-t tail thickness

4.6757
2.58***

Persistence:

0.990

Half-life:

72 days