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V-Lab

Purpose Solana ETF GAS-GARCH Student T Volatility Analysis

Volatility prediction for Wednesday, September 16th, 2026

1 Day

64.21%

increased by 4.32%

1 Week

65.28%

increased by 5.39%

1 Month

67.55%

increased by 7.66%

Analysis last updated: Wednesday, September 16, 2026 at 09:12 AM UTC

Date Range:

from

to

6M ·

1Y ·

All

graph of Purpose Solana ETF GAS-GARCH-T

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Apr 16, 2025 to Sep 11, 2026

Model Insight

Volatility shocks decay with a half-life of 7 trading days, meaning a shock loses half its impact after approximately 7 days. Returns follow a Student-t distribution with v = 19.94 degrees of freedom, capturing fatter tails than a normal distribution.

𝑓

GAS-GARCH-T Model

Tap to view equation

Shock decay: Shocks decay with a 7-day half-lifev = 19.94 · fat tails
ParamValuet-stat
ωconst19.3858
4.22***
αARCH0.0923
1.36
βGARCH0.8996
12.15***
νDF19.9449
0.09

0.900

Persistence

7d

Half-life
𝑓

GAS-GARCH-T Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

19.3858
4.22***
α

ARCH

Response to squared shocks

0.0923
1.36
β

GARCH

Volatility persistence

0.8996
12.15***
ν

DF

Student-t tail thickness

19.9449
0.09

Persistence:

0.900

Half-life:

7 days