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V-Lab

Prism Medico & Pharmacy Ltd Zero Slope 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 Monday, August 24th, 2026

1 Day

37.82%

decreased by 1.15%

1 Week

42.53%

increased by 3.56%

1 Month

57.63%

increased by 18.66%

Analysis last updated: Saturday, August 22, 2026 at 09:30 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Prism Medico & Pharmacy Ltd S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jun 15, 2012 to Aug 21, 2026

Model Insight

With persistence 1.000, volatility shocks have a half-life of 86643 trading days (~343.8 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

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.2133
0.02
α

ARCH

Response to squared shocks

0.3508
0.01
β

GARCH

Volatility persistence

0.6492
0.02
γi Spline Coefficients
K=8
γ1-12.8092
-0.04
γ223.7163
0.03
γ3-15.9601
-0.02
γ45.6172
0.01
γ5-1.0906
0.00
γ61.1783
0.01
γ7-1.1567
-0.02
γ80.6821
0.03

Persistence:

1.000

Half-life:

86643 days