V-Lab
Mexican Peso GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, September 22nd, 2026
1 Day
7.01%
decreased by 0.35%
1 Week
7.08%
decreased by 0.28%
1 Month
7.37%
increased by 0.01%
Analysis last updated: Monday, September 21, 2026 at 07:10 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 31, 1995 to Sep 18, 2026Model Insight
With persistence 0.994, volatility shocks have a half-life of 110 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate. Returns follow a Student-t distribution with v = 2.94 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
High persistence: persistence 0.994, shock half-life ~110 daysv = 2.94 · fat tails
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.5381 | 0.93 |
| αARCH | 0.0542 | 21.16*** |
| βGARCH | 0.9937 | 156.86*** |
| νDF | 2.9403 | 9.85*** |
0.994
Persistence110d
Half-life𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.5381 | 0.93 |
α ARCH Response to squared shocks | 0.0542 | 21.16*** |
β GARCH Volatility persistence | 0.9937 | 156.86*** |
ν DF Student-t tail thickness | 2.9403 | 9.85*** |
Persistence:
0.994
Half-life:
110 days
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