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V-Lab

Big Digital Energy Inc Zero Slope Spline-GARCH Volatility Analysis

Volatility prediction for Wednesday, July 22nd, 2026

1 Day

137.27%

decreased by 8.85%

1 Week

145.96%

decreased by 0.16%

1 Month

154.03%

increased by 7.91%

Analysis last updated: Tuesday, July 21, 2026 at 09:14 PM UTC

Date Range:

from

to

6M ·

1Y ·

2Y ·

5Y ·

10Y ·

All

graph of Big Digital Energy Inc S0GARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Feb 22, 2012 to Jul 17, 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 2 trading days.

τ

Zero Slope Spline-GARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

1.8002
2.80***
α

ARCH

Response to squared shocks

0.2104
4.95***
β

GARCH

Volatility persistence

0.5165
5.93***
γi Spline Coefficients
K=9
γ1-2.5306
-1.87*
γ25.2151
2.42**
γ3-5.2373
-3.44***
γ44.3355
4.05***
γ5-2.7319
-3.46***
γ62.1256
2.69***
γ7-1.8028
-1.87*
γ80.4899
0.33
γ90.2723
0.19

Persistence:

0.727

Half-life:

2 days