V-Lab
Osisko Gold Group Inc GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, September 21st, 2026
1 Day
55.50%
decreased by 3.02%
1 Week
56.74%
decreased by 1.78%
1 Month
59.26%
increased by 0.74%
Analysis last updated: Friday, September 18, 2026 at 11:41 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 30, 2022 to Sep 18, 2026Model Insight
Volatility shocks decay with a half-life of 6 trading days, meaning a shock loses half its impact after approximately 6 days. Returns follow a Student-t distribution with v = 4.67 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
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Shock decay: Shocks decay with a 6-day half-lifev = 4.67 · fat tails
| Param | Value | t-stat |
|---|---|---|
| ωconst | 15.0946 | 1.37 |
| αARCH | 0.0747 | 1.14 |
| βGARCH | 0.8929 | 10.70*** |
| νDF | 4.6748 | 0.39 |
0.893
Persistence6d
Half-life𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 15.0946 | 1.37 |
α ARCH Response to squared shocks | 0.0747 | 1.14 |
β GARCH Volatility persistence | 0.8929 | 10.70*** |
ν DF Student-t tail thickness | 4.6748 | 0.39 |
Persistence:
0.893
Half-life:
6 days
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