Big Digital Energy Inc Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Friday, October 23rd, 2026
1 Day
127.30%
increased by 2.76%
1 Week
133.68%
increased by 9.14%
1 Month
140.22%
increased by 15.68%
Analysis last updated: Thursday, October 22, 2026 at 09:10 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Feb 22, 2012 to Oct 16, 2026Model 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
Time-varying baseline: volatility reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 1.9767 | 2.93*** |
| αARCH | 0.2187 | 5.13*** |
| βGARCH | 0.5311 | 6.44*** |
Spline Coefficients
K=9
| γ1 | -1.9640 | -1.61 |
| γ2 | 4.2784 | 2.19** |
| γ3 | -4.6396 | -3.25*** |
| γ4 | 4.0387 | 3.61*** |
| γ5 | -2.6582 | -3.22*** |
| γ6 | 2.1946 | 2.99*** |
| γ7 | -2.1216 | -3.13*** |
| γ8 | 0.8242 | 1.13 |
| γ9 | 0.2492 | 0.30 |
0.750
Persistence2d
Half-lifeτ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.9767 | 2.93*** |
α ARCH Response to squared shocks | 0.2187 | 5.13*** |
β GARCH Volatility persistence | 0.5311 | 6.44*** |
Spline Coefficients
K=9
| γ1 | -1.9640 | -1.61 |
| γ2 | 4.2784 | 2.19** |
| γ3 | -4.6396 | -3.25*** |
| γ4 | 4.0387 | 3.61*** |
| γ5 | -2.6582 | -3.22*** |
| γ6 | 2.1946 | 2.99*** |
| γ7 | -2.1216 | -3.13*** |
| γ8 | 0.8242 | 1.13 |
| γ9 | 0.2492 | 0.30 |
Persistence:
0.750
Half-life:
2 days
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