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Ashika Global Securities Ltd Spline-GARCH Volatility Analysis

High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful

Volatility prediction for Friday, September 11th, 2026

1 Day

26.00%

decreased by 1.99%

1 Week

30.73%

increased by 2.74%

1 Month

44.92%

increased by 16.93%

Analysis last updated: Friday, September 11, 2026 at 07:37 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Ashika Global Securities Ltd SGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

May 8, 2013 to Sep 4, 2026

Model Insight

With persistence 1.000, volatility shocks have a half-life of 77016 trading days (~305.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

τ

Spline-GARCH Model

Tap to view equation

High persistence: persistence 1.000, shock half-life ~77016 days
ParamValuet-stat
ωconst0.1218
0.09
αARCH0.3191
0.05
βGARCH0.6809
0.11
γi Spline Coefficients
K=9
γ1-7.9271
-0.01
γ232.3821
0.01
γ3-73.9280
-0.03
γ4127.3171
0.09
γ5-165.1821
-0.46
γ6158.9706
0.30
γ7-114.9673
-0.04
γ867.4578
0.01
γ9-35.7022
-0.01

1.000

Persistence

77016d

Half-life
τ

Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1218
0.09
α

ARCH

Response to squared shocks

0.3191
0.05
β

GARCH

Volatility persistence

0.6809
0.11
γi Spline Coefficients
K=9
γ1-7.9271
-0.01
γ232.3821
0.01
γ3-73.9280
-0.03
γ4127.3171
0.09
γ5-165.1821
-0.46
γ6158.9706
0.30
γ7-114.9673
-0.04
γ867.4578
0.01
γ9-35.7022
-0.01

Persistence:

1.000

Half-life:

77016 days