V-Lab
Onex Corp (Japan) GAS-GARCH Student T Volatility Analysis
Volatility prediction for Friday, September 11th, 2026
1 Day
47.23%
decreased by 6.13%
1 Week
49.79%
decreased by 3.57%
1 Month
58.08%
increased by 4.72%
Analysis last updated: Friday, September 11, 2026 at 08:13 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Feb 26, 1997 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 44 trading days, meaning a shock loses half its impact after approximately 44 days. Returns follow a Student-t distribution with v = 2.33 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
Shock decay: Shocks decay with a 44-day half-lifev = 2.33 · fat tails
| Param | Value | t-stat |
|---|---|---|
| ωconst | 40.4890 | 0.65 |
| αARCH | 0.1125 | 14.93*** |
| βGARCH | 0.9842 | 40.30*** |
| νDF | 2.3304 | 23.34*** |
0.984
Persistence44d
Half-life𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 40.4890 | 0.65 |
α ARCH Response to squared shocks | 0.1125 | 14.93*** |
β GARCH Volatility persistence | 0.9842 | 40.30*** |
ν DF Student-t tail thickness | 2.3304 | 23.34*** |
Persistence:
0.984
Half-life:
44 days
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