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V-Lab

State Street Technology Select Sector SPDR ETF MF2-GARCH Volatility Analysis

Volatility prediction for Thursday, July 16th, 2026

1 Day

35.09%

decreased by 0.76%

1 Week

35.39%

decreased by 0.46%

1 Month

34.87%

decreased by 0.98%

Analysis last updated: Wednesday, July 15, 2026 at 10:13 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of State Street Technology Select Sector SPDR ETF MF2-GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 22, 1998 to Jul 10, 2026

Model Insight

This asset exhibits a strong leverage effect: volatility responds almost entirely to negative shocks. The ARCH response to positive shocks is negligible.

σ

MF2-GARCH Model

Tap to view equation

ParameterValuet-statistic
m

window

Rolling window length

31
α

ARCH

Response to squared shocks

0.0000
0.00
β

GARCH

Volatility persistence

0.8280
146.13***
γ

leverage

Additional response to negative shocks

0.1863
36.82***
λ₁

tau intercept

Baseline long-term coefficient

0.0107
4.89***
λ₂

forecast adj.

Forecast performance sensitivity

0.0539
5.19***
λ₃

tau persistence

Long-term factor persistence

0.9412
85.56***

Persistence:

0.921

Half-life:

8 days