V-Lab
Galera Therapeutics Inc Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 26th, 2026
1 Day
150.63%
decreased by 4.27%
1 Week
163.57%
increased by 8.67%
1 Month
173.80%
increased by 18.90%
Analysis last updated: Tuesday, August 25, 2026 at 09:28 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 7, 2019 to Aug 21, 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
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8669 | 5.69*** |
α ARCH Response to squared shocks | 0.1571 | 3.15*** |
β GARCH Volatility persistence | 0.5301 | 4.06*** |
Spline Coefficients
K=8
| γ1 | -0.7382 | -0.60 |
| γ2 | 3.4041 | 1.45 |
| γ3 | -6.2691 | -2.35** |
| γ4 | 6.6450 | 2.29** |
| γ5 | -4.3369 | -1.53 |
| γ6 | 0.5180 | 0.21 |
| γ7 | 2.2847 | 1.27 |
| γ8 | -2.2319 | -1.69* |
Persistence:
0.687
Half-life:
2 days
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