V-Lab
Chilean Peso GAS-GARCH Student T Volatility Analysis
Volatility prediction for Wednesday, September 9th, 2026
1 Day
13.49%
1 Week
13.50%
1 Month
13.53%
Analysis last updated: Tuesday, September 8, 2026 at 07:02 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Dec 31, 1992 to Sep 4, 2026Model Insight
With persistence 0.998, volatility shocks have a half-life of 408 trading days (~1.6 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 2.32 degrees of freedom, capturing fatter tails than a normal distribution.
GAS-GARCH-T Model
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| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.9525 | 1.94* |
| αARCH | 0.0295 | 27.20*** |
| βGARCH | 0.9983 | 1,336.41*** |
| νDF | 2.3217 | 122.15*** |
0.998
Persistence408d
Half-lifeGAS-GARCH-T Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.9525 | 1.94* |
α ARCH Response to squared shocks | 0.0295 | 27.20*** |
β GARCH Volatility persistence | 0.9983 | 1,336.41*** |
ν DF Student-t tail thickness | 2.3217 | 122.15*** |
Persistence:
0.998
Half-life:
408 days
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