Nissha Co Ltd GAS-GARCH Student T Volatility Analysis
Volatility prediction for Wednesday, July 15th, 2026
1 Day
34.54%
decreased by 0.61%
1 Week
35.76%
increased by 0.61%
1 Month
36.59%
increased by 1.44%
Analysis last updated: Wednesday, July 15, 2026 at 06:47 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 18, 2021 to Jul 10, 2026Model Insight
Volatility shocks decay with a half-life of 2 trading days, meaning a shock loses half its impact after approximately 2 days. Returns follow a Student-t distribution with v = 4.98 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 | 5.4001 | 13.93*** |
α ARCH Response to squared shocks | 0.1684 | 6.99*** |
β GARCH Volatility persistence | 0.6316 | 31.13*** |
ν DF Student-t tail thickness | 4.9753 | 2.58*** |
Persistence:
0.632
Half-life:
2 days
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