V-Lab
SandRidge Energy, Inc. GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, September 14th, 2026
1 Day
28.67%
1 Week
29.05%
1 Month
30.48%
Analysis last updated: Saturday, September 12, 2026 at 12:30 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 4, 2016 to Sep 11, 2026Model Insight
With persistence 0.996, volatility shocks have a half-life of 159 trading days (~0.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 5.21 degrees of freedom, capturing fatter tails than a normal distribution.
GAS-GARCH-T Model
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| Param | Value | t-stat |
|---|---|---|
| ωconst | 13.3212 | 1.37 |
| αARCH | 0.0499 | 9.79*** |
| βGARCH | 0.9957 | 353.70*** |
| νDF | 5.2133 | 2.93*** |
0.996
Persistence159d
Half-lifeGAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 13.3212 | 1.37 |
α ARCH Response to squared shocks | 0.0499 | 9.79*** |
β GARCH Volatility persistence | 0.9957 | 353.70*** |
ν DF Student-t tail thickness | 5.2133 | 2.93*** |
Persistence:
0.996
Half-life:
159 days
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