V-Lab
US Dollar to Chilean Peso GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, September 29th, 2026
1 Day
14.33%
1 Week
14.33%
1 Month
14.31%
Analysis last updated: Monday, September 28, 2026 at 07:13 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 19, 1990 to Sep 25, 2026Model Insight
With persistence 0.997, volatility shocks have a half-life of 257 trading days (~1.0 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 2.25 degrees of freedom, capturing fatter tails than a normal distribution.
GAS-GARCH-T Model
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| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.7059 | 2.17** |
| αARCH | 0.0348 | 28.61*** |
| βGARCH | 0.9973 | 816.79*** |
| νDF | 2.2450 | 171.52*** |
0.997
Persistence257d
Half-lifeGAS-GARCH-T Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.7059 | 2.17** |
α ARCH Response to squared shocks | 0.0348 | 28.61*** |
β GARCH Volatility persistence | 0.9973 | 816.79*** |
ν DF Student-t tail thickness | 2.2450 | 171.52*** |
Persistence:
0.997
Half-life:
257 days
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