Skip to main content
V-Lab
V-Lab

Smart Powerr Corp EGARCH Volatility Analysis

Volatility prediction for Monday, September 7th, 2026

1 Day

251.18%

decreased by 9.64%

1 Week

253.65%

decreased by 7.17%

1 Month

263.57%

increased by 2.75%

Analysis last updated: Saturday, September 5, 2026 at 09:26 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Smart Powerr Corp EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jul 4, 2001 to Sep 4, 2026

Model Insight

With persistence 0.995, volatility shocks have a half-life of 133 trading days (~0.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

σ

EGARCH Model

Tap to view equation

High persistence: persistence 0.995, shock half-life ~133 days
ParamValuet-stat
ωconst0.0385
1.97**
αARCH0.1066
5.10***
βGARCH0.9948
262.83***
γleverage-0.0152
-0.60

0.995

Persistence

133d

Half-life
σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0385
1.97**
α

ARCH

Response to squared shocks

0.1066
5.10***
β

GARCH

Volatility persistence

0.9948
262.83***
γ

leverage

Additional response to negative shocks

-0.0152
-0.60

Persistence:

0.995

Half-life:

133 days