V-Lab
Camtek Ltd GAS-GARCH Student T Volatility Analysis
Volatility prediction for Sunday, September 13th, 2026
1 Day
270.86%
decreased by 5.78%
1 Week
269.28%
decreased by 7.36%
1 Month
263.21%
decreased by 13.43%
Analysis last updated: Friday, September 11, 2026 at 07:53 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 18, 2006 to Sep 10, 2026Model Insight
The estimated Student-t degrees of freedom v = 2.06 sit at the infinite-variance boundary (v → 2): the model is attributing extreme moves to heavy tails rather than to volatility, so the volatility scale is unreliable here. See the boundary-parameters flag.
𝑓
GAS-GARCH-T Model
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Unreliable tails: v = 2.06 sits at the infinite-variance boundary
| Param | Value | t-stat |
|---|---|---|
| ωconst | 85.9517 | 0.68 |
| αARCH | 0.0319 | 12.67*** |
| βGARCH | 0.9917 | 82.95*** |
| νDF | 2.0620 | 70.41*** |
0.992
Persistence83d
Half-life𝑓
GAS-GARCH-T Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 85.9517 | 0.68 |
α ARCH Response to squared shocks | 0.0319 | 12.67*** |
β GARCH Volatility persistence | 0.9917 | 82.95*** |
ν DF Student-t tail thickness | 2.0620 | 70.41*** |
Persistence:
0.992
Half-life:
83 days
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