Skip to main content
V-Lab

S&P BSE SENSEX Index GJR-GARCH Volatility Analysis

Volatility prediction for Wednesday, July 22nd, 2026

1 Day

13.94%

decreased by 0.44%

1 Week

14.20%

decreased by 0.18%

1 Month

15.16%

increased by 0.78%

Analysis last updated: Tuesday, July 21, 2026 at 12:03 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P BSE SENSEX Index GJR-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 1, 1990 to Jul 17, 2026

Model Insight

With persistence 1.000, volatility shocks have a half-life of 3894 trading days (~15.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 74% more than positive returns

σ

GJR-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0142
17.04***
α

ARCH

Response to squared shocks

0.0651
19.08***
β

GARCH

Volatility persistence

0.9106
438.85***
γ

leverage

Additional response to negative shocks

0.0483
7.78***

Persistence:

1.000

Half-life:

3894 days