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V-Lab

Xtrackers S&P 100 Ex Top 20 ETF APARCH Volatility Analysis

Volatility prediction for Monday, August 17th, 2026

1 Day

10.66%

decreased by 0.01%

1 Week

11.33%

increased by 0.66%

1 Month

12.30%

increased by 1.63%

Analysis last updated: Saturday, August 15, 2026 at 02:21 AM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Xtrackers S&P 100 Ex Top 20 ETF APARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 28, 2022 to Aug 14, 2026
Boundary Parameters

Model Insight

Volatility shocks decay with a half-life of 4 trading days, meaning a shock loses half its impact after approximately 4 days.

σ

APARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.1052
14.00***
α

ARCH

Response to squared shocks

0.0464
0.00
β

GARCH

Volatility persistence

0.7385
26.81***
γ

leverage

Additional response to negative shocks

1.0000
0.00
δ

power

Transformation power

2.0696
7.78***

Persistence:

0.838

Half-life:

4 days