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V-Lab

Roundhill UNH WeeklyPay ETF Asy. MEM Volatility Analysis

Volatility prediction for Wednesday, August 12th, 2026

1 Day

30.55%

increased by 0.05%

1 Week

30.64%

increased by 0.14%

1 Month

30.98%

increased by 0.48%

Analysis last updated: Wednesday, August 12, 2026 at 02:17 AM UTC

Date Range:

from

to

6M ·

All

graph of Roundhill UNH WeeklyPay ETF AMEM

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Dec 3, 2025 to Aug 7, 2026

Model Insight

With persistence 0.995, volatility shocks have a half-life of 152 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.

μ

AMEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.0277
0.04
α

ARCH

Response to squared shocks

0.0000
0.00
β

GARCH

Volatility persistence

0.9954
0.42
γ

leverage

Additional response to negative shocks

0.0000
0.00

Persistence:

0.995

Half-life:

152 days