V-Lab
Valion Bio Inc GJR-GARCH Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
131.46%
decreased by 1.21%
1 Week
135.94%
increased by 3.27%
1 Month
149.19%
increased by 16.52%
Analysis last updated: Friday, July 24, 2026 at 10:11 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 11, 2021 to Jul 24, 2026Boundary Parameters
Model Insight
This asset shows a rare inverse leverage effect: volatility responds almost entirely to positive returns, rising far more after gains than after losses. This is the reverse of the usual leverage effect, rare among risky assets.
σ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 5.0000 | 6.09*** |
α ARCH Response to squared shocks | 0.1471 | 5.51*** |
β GARCH Volatility persistence | 0.8802 | 54.97*** |
γ leverage Additional response to negative shocks | -0.1285 | -4.56*** |
Persistence:
0.963
Half-life:
18 days
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