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V-Lab

CH Biotech R&D Co Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Wednesday, August 26th, 2026

1 Day

85.74%

increased by 0.87%

1 Week

100.07%

increased by 15.20%

1 Month

139.82%

increased by 54.95%

Analysis last updated: Wednesday, August 26, 2026 at 09:50 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of CH Biotech R&D Co Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 2, 2015 to Aug 21, 2026

Model Insight

The estimated Student-t degrees of freedom v = 2.03 sit at the infinite-variance boundary (v → 2): the model is attributing extreme moves to heavy tails rather than to volatility, so the volatility scale is unreliable here. See the boundary-parameters flag.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

348.4275
2.38**
α

ARCH

Response to squared shocks

0.1664
95.89***
β

GARCH

Volatility persistence

0.9832
141.28***
ν

DF

Student-t tail thickness

2.0269
1,343.24***

Persistence:

0.983

Half-life:

41 days