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V-Lab

HBL Engineering Ltd GAS-GARCH Student T Volatility Analysis

Volatility prediction for Tuesday, August 25th, 2026

1 Day

48.18%

decreased by 0.26%

1 Week

50.14%

increased by 1.70%

1 Month

54.10%

increased by 5.66%

Analysis last updated: Tuesday, August 25, 2026 at 06:56 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of HBL Engineering Ltd GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Sep 14, 2007 to Aug 21, 2026

Model Insight

Volatility shocks decay with a half-life of 6 trading days, meaning a shock loses half its impact after approximately 6 days. Returns follow a Student-t distribution with v = 3.56 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

13.3101
8.42***
α

ARCH

Response to squared shocks

0.1132
14.32***
β

GARCH

Volatility persistence

0.8965
68.20***
ν

DF

Student-t tail thickness

3.5621
7.85***

Persistence:

0.897

Half-life:

6 days