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Ashika Global Securities Ltd Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Friday, September 11th, 2026

1 Day

16.62%

decreased by 3.04%

1 Week

16.63%

decreased by 3.03%

1 Month

16.67%

decreased by 2.99%

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 S0GARCH

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 0.999, volatility shocks have a half-life of 476 trading days (~1.9 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

High persistence: persistence 0.999, shock half-life ~476 days
ParamValuet-stat
ωconst4.4635
2.08**
αARCH0.3072
6.29***
βGARCH0.6913
68.34***
γi Spline Coefficients
K=9
γ1-4.5216
-0.19
γ220.9702
0.73
γ3-52.8951
-5.58***
γ497.6757
21.08***
γ5-132.7889
-34.00***
γ6133.8481
19.97***
γ7-102.5135
-14.51***
γ863.2209
3.89***
γ9-31.9770
-2.22**

0.999

Persistence

476d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

4.4635
2.08**
α

ARCH

Response to squared shocks

0.3072
6.29***
β

GARCH

Volatility persistence

0.6913
68.34***
γi Spline Coefficients
K=9
γ1-4.5216
-0.19
γ220.9702
0.73
γ3-52.8951
-5.58***
γ497.6757
21.08***
γ5-132.7889
-34.00***
γ6133.8481
19.97***
γ7-102.5135
-14.51***
γ863.2209
3.89***
γ9-31.9770
-2.22**

Persistence:

0.999

Half-life:

476 days