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V-Lab

National Stock Exchange CNX Nifty Index MEM Volatility Analysis

Volatility prediction for Tuesday, September 15th, 2026

1 Day

10.57%

increased by 0.95%

1 Week

11.25%

increased by 1.63%

1 Month

13.48%

increased by 3.86%

Analysis last updated: Friday, September 11, 2026 at 12:02 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of National Stock Exchange CNX Nifty Index MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 2, 1995 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 63 trading days, meaning a shock loses half its impact after approximately 63 days.

μ

MEM Model

Tap to view equation

Shock decay: Shocks decay with a 63-day half-life
ParamValuet-stat
ωconst0.0346
2.58***
αARCH0.2152
12.32***
βGARCH0.7738
58.41***

0.989

Persistence

63d

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0346
2.58***
α

ARCH

Response to squared shocks

0.2152
12.32***
β

GARCH

Volatility persistence

0.7738
58.41***

Persistence:

0.989

Half-life:

63 days