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V-Lab

S&P BSE SENSEX Index EGARCH Volatility Analysis

Volatility prediction for Thursday, July 23rd, 2026

1 Day

14.57%

increased by 0.64%

1 Week

14.80%

increased by 0.87%

1 Month

15.73%

increased by 1.80%

Analysis last updated: Wednesday, July 22, 2026 at 12:03 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P BSE SENSEX Index EGARCH

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 0.993, volatility shocks have a half-life of 95 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 43% more than positive returns

σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0144
15.72***
α

ARCH

Response to squared shocks

0.1648
22.95***
β

GARCH

Volatility persistence

0.9928
1,313.18***
γ

leverage

Additional response to negative shocks

-0.0291
-6.84***

Persistence:

0.993

Half-life:

95 days