V-Lab
Yamada Consulting Group Co GAS-GARCH Student T Volatility Analysis
Volatility prediction for Wednesday, August 5th, 2026
1 Day
32.32%
increased by 0.95%
1 Week
34.14%
increased by 2.77%
1 Month
40.16%
increased by 8.79%
Analysis last updated: Wednesday, August 5, 2026 at 07:22 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Mar 23, 2001 to Jul 31, 2026Model Insight
Volatility shocks decay with a half-life of 56 trading days, meaning a shock loses half its impact after approximately 56 days. Returns follow a Student-t distribution with v = 2.88 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 | 23.9422 | 2.88*** |
α ARCH Response to squared shocks | 0.1262 | 59.79*** |
β GARCH Volatility persistence | 0.9877 | 234.27*** |
ν DF Student-t tail thickness | 2.8755 | 45.96*** |
Persistence:
0.988
Half-life:
56 days
Other Yamada Consulting Group Co Analyses
Other GAS-GARCH Student T Analyses on International Equities