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V-Lab

State Street SPDR S&P Semiconductor ETF EGARCH Volatility Analysis

Volatility prediction for Thursday, August 6th, 2026

1 Day

59.29%

increased by 1.14%

1 Week

58.07%

decreased by 0.08%

1 Month

54.07%

decreased by 4.08%

Analysis last updated: Wednesday, August 5, 2026 at 09:47 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of State Street SPDR S&P Semiconductor ETF EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Feb 6, 2006 to Jul 31, 2026

Model Insight

This asset exhibits a strong leverage effect: negative returns increase next-day volatility 128% more than equivalent positive returns.

σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0291
13.60***
α

ARCH

Response to squared shocks

0.1459
28.37***
β

GARCH

Volatility persistence

0.9808
935.92***
γ

leverage

Additional response to negative shocks

-0.0570
-12.37***

Persistence:

0.981

Half-life:

36 days