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V-Lab

ProShares Ultra Nasdaq Cybersecurity ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Monday, August 24th, 2026

1 Day

59.60%

decreased by 0.48%

1 Week

59.39%

decreased by 0.69%

1 Month

58.60%

decreased by 1.48%

Analysis last updated: Saturday, August 22, 2026 at 02:23 AM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

5Y ·

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graph of ProShares Ultra Nasdaq Cybersecurity ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Jan 21, 2021 to Aug 21, 2026

Model Insight

Volatility shocks decay with a half-life of 58 trading days, meaning a shock loses half its impact after approximately 58 days. Returns follow a Student-t distribution with v = 9.08 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

9.9054
6.54***
α

ARCH

Response to squared shocks

0.0466
14.65***
β

GARCH

Volatility persistence

0.9880
450.95***
ν

DF

Student-t tail thickness

9.0779
1.84*

Persistence:

0.988

Half-life:

58 days