V-Lab
Nanjing Vazyme Biotech Co Ltd Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 5th, 2026
1 Day
69.39%
increased by 6.87%
1 Week
67.22%
increased by 4.70%
1 Month
60.70%
decreased by 1.82%
Analysis last updated: Wednesday, August 5, 2026 at 06:18 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 15, 2021 to Jul 31, 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 12 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.4701 | 5.48*** |
α ARCH Response to squared shocks | 0.1255 | 3.17*** |
β GARCH Volatility persistence | 0.8193 | 15.35*** |
Spline Coefficients
K=1
| γ1 | 0.0415 | 2.06** |
Persistence:
0.945
Half-life:
12 days
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