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V-Lab

Concord Biotech Limited GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, September 15th, 2026

1 Day

40.87%

increased by 2.94%

1 Week

40.89%

increased by 2.96%

1 Month

40.94%

increased by 3.01%

Analysis last updated: Wednesday, September 16, 2026 at 07:28 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Concord Biotech Limited GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Aug 18, 2023 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 7 trading days, meaning a shock loses half its impact after approximately 7 days. 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

Shock decay: Shocks decay with a 7-day half-lifev = 4.13 · fat tails
ParamValuet-stat
ωconst6.6678
0.75
αARCH0.0520
0.63
βGARCH0.9091
8.64***
νDF4.1348
0.23

0.909

Persistence

7d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

6.6678
0.75
α

ARCH

Response to squared shocks

0.0520
0.63
β

GARCH

Volatility persistence

0.9091
8.64***
ν

DF

Student-t tail thickness

4.1348
0.23

Persistence:

0.909

Half-life:

7 days