Skip to main content
V-Lab
V-Lab

Purpose Solana 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 Tuesday, September 15th, 2026

1 Day

52.67%

decreased by 3.12%

1 Week

53.89%

decreased by 1.90%

1 Month

58.50%

increased by 2.71%

Analysis last updated: Tuesday, September 15, 2026 at 09:06 AM UTC

Date Range:

from

to

6M ·

1Y ·

All

graph of Purpose Solana ETF MEM

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

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

High persistence: persistence 1.000 ≥ 1, shocks do not decay
ParamValuet-stat
ωconst0.2572
1.60
αARCH0.2899
3.46***
βGARCH0.7101
12.96***

1.000

Persistence

-

Half-life
μ

MEM Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.2572
1.60
α

ARCH

Response to squared shocks

0.2899
3.46***
β

GARCH

Volatility persistence

0.7101
12.96***

Persistence:

1.000

Half-life:

-