V-Lab
Vietnam Electricity GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, June 29th, 2026
1 Day
59.06%
increased by 10.16%
1 Week
58.13%
increased by 9.23%
1 Month
55.81%
increased by 6.91%
Analysis last updated: Sunday, June 28, 2026 at 02:53 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 15, 2024 to Jun 26, 2026Model Insight
Volatility shocks decay with a half-life of 8 trading days, meaning a shock loses half its impact after approximately 8 days. Returns follow a Student-t distribution with v = 4.28 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 10.8967 | 3.10*** |
α ARCH Response to squared shocks | 0.3094 | 12.44*** |
β GARCH Volatility persistence | 0.9212 | 34.66*** |
ν DF Student-t tail thickness | 4.2775 | 7.25*** |
Persistence:
0.921
Half-life:
8 days
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