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S&P/BMV IPC VIX EGARCH Volatility Analysis

Volatility prediction for Friday, September 4th, 2026

1 Day

50.85%

increased by 0.99%

1 Week

62.05%

increased by 12.19%

1 Month

74.87%

increased by 25.01%

Analysis last updated: Friday, September 4, 2026 at 11:27 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of S&P/BMV IPC VIX EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 2015 to Aug 27, 2026

Model Insight

Volatility shocks decay with a half-life of 2 trading days, meaning a shock loses half its impact after approximately 2 days.

σ

EGARCH Model

Tap to view equation

Shock decay: Shocks decay with a 2-day half-life
ParamValuet-stat
ωconst0.8640
2.85***
αARCH0.4154
5.84***
βGARCH0.7332
7.76***
γleverage-0.0319
-0.54

0.733

Persistence

2d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.8640
2.85***
α

ARCH

Response to squared shocks

0.4154
5.84***
β

GARCH

Volatility persistence

0.7332
7.76***
γ

leverage

Additional response to negative shocks

-0.0319
-0.54

Persistence:

0.733

Half-life:

2 days