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V-Lab

Defiance S&P 500 TRG Inc ETF MEM Volatility Analysis

Volatility prediction for Tuesday, August 18th, 2026

1 Day

7.90%

decreased by 0.36%

1 Week

8.74%

increased by 0.48%

1 Month

10.73%

increased by 2.47%

Analysis last updated: Monday, August 17, 2026 at 09:44 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Defiance S&P 500 TRG Inc ETF MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 7, 2024 to Aug 14, 2026

Model Insight

Volatility shocks decay with a half-life of 11 trading days, meaning a shock loses half its impact after approximately 11 days.

μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0442
6.53***
α

ARCH

Response to squared shocks

0.3524
15.68***
β

GARCH

Volatility persistence

0.5883
39.37***

Persistence:

0.941

Half-life:

11 days