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V-Lab

Roundhill 100 0Dte Strgy ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Thursday, August 20th, 2026

1 Day

16.86%

decreased by 1.36%

1 Week

17.21%

decreased by 1.01%

1 Month

18.21%

decreased by 0.01%

Analysis last updated: Wednesday, August 19, 2026 at 09:20 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Roundhill 100 0Dte Strgy ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 6, 2024 to Aug 14, 2026

Model Insight

Volatility shocks decay with a half-life of 14 trading days, meaning a shock loses half its impact after approximately 14 days. Returns follow a Student-t distribution with v = 5.44 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.6568
4.95***
α

ARCH

Response to squared shocks

0.1029
9.63***
β

GARCH

Volatility persistence

0.9532
106.10***
ν

DF

Student-t tail thickness

5.4410
2.77***

Persistence:

0.953

Half-life:

14 days