US Dollar to Chilean Peso GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, October 19th, 2026
1 Day
14.35%
decreased by 0.63%
1 Week
14.35%
decreased by 0.63%
1 Month
14.32%
decreased by 0.66%
Analysis last updated: Sunday, October 18, 2026 at 03:09 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 19, 1990 to Oct 16, 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.
𝑓
GAS-GARCH-T Model
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High persistence: persistence 0.997, shock half-life ~257 daysv = 2.25 · fat tails
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.6966 | 2.18** |
| αARCH | 0.0348 | 28.58*** |
| βGARCH | 0.9973 | 818.81*** |
| νDF | 2.2491 | 168.66*** |
0.997
Persistence257d
Half-life𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.6966 | 2.18** |
α ARCH Response to squared shocks | 0.0348 | 28.58*** |
β GARCH Volatility persistence | 0.9973 | 818.81*** |
ν DF Student-t tail thickness | 2.2491 | 168.66*** |
Persistence:
0.997
Half-life:
257 days
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