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V-Lab

Roundhill Nasdaq-100 0DTE Covered Call ETF Strategy ETF Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Thursday, September 10th, 2026

1 Day

14.31%

decreased by 0.27%

1 Week

15.16%

increased by 0.58%

1 Month

17.09%

increased by 2.51%

Analysis last updated: Wednesday, September 9, 2026 at 09:10 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

All

graph of Roundhill Nasdaq-100 0DTE Covered Call ETF Strategy ETF S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Mar 6, 2024 to Sep 4, 2026

Model Insight

This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 9 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

Time-varying baseline: volatility reverts to a slowly-shifting spline trend
ParamValuet-stat
ωconst0.9027
3.97***
αARCH0.1052
2.85***
βGARCH0.8175
13.36***
γi Spline Coefficients
K=1
γ1-0.0236
-0.29

0.923

Persistence

9d

Half-life
τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.9027
3.97***
α

ARCH

Response to squared shocks

0.1052
2.85***
β

GARCH

Volatility persistence

0.8175
13.36***
γi Spline Coefficients
K=1
γ1-0.0236
-0.29

Persistence:

0.923

Half-life:

9 days