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V-Lab

Gabelli Opportunities in Live and Sports ETF MEM Volatility Analysis

High-persistence model: shocks decay very slowly, so the theoretical long-run value may not be practically meaningful

Volatility prediction for Monday, August 17th, 2026

1 Day

12.36%

increased by 0.01%

1 Week

12.39%

increased by 0.04%

1 Month

12.51%

increased by 0.16%

Analysis last updated: Saturday, August 15, 2026 at 02:29 AM UTC

Date Range:

from

to

6M ·

All

graph of Gabelli Opportunities in Live and Sports ETF MEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 2, 2026 to Aug 14, 2026
Boundary Parameters
Hessian SE

Model Insight

Estimated persistence of 1.000 is at or above 1 (non-stationary): volatility shocks do not decay and the long-run variance is undefined, so long-horizon forecasts should be treated with caution.

μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0015
0.00
α

ARCH

Response to squared shocks

0.0000
0.00
β

GARCH

Volatility persistence

1.0000
0.00

Persistence:

1.000

Half-life:

-