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V-Lab

CRA International Inc EGARCH Volatility Analysis

Volatility prediction for Wednesday, August 12th, 2026

1 Day

44.99%

decreased by 0.77%

1 Week

45.24%

decreased by 0.52%

1 Month

46.20%

increased by 0.44%

Analysis last updated: Tuesday, August 11, 2026 at 09:57 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

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graph of CRA International Inc EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Apr 24, 1998 to Aug 7, 2026

Model Insight

With persistence 0.991, volatility shocks have a half-life of 77 trading days (~0.3 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

Leverage: Negative returns increase volatility 355% more than positive returns

σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0242
4.97***
α

ARCH

Response to squared shocks

0.0502
11.18***
β

GARCH

Volatility persistence

0.9911
705.90***
γ

leverage

Additional response to negative shocks

-0.0321
-8.38***

Persistence:

0.991

Half-life:

77 days