V-Lab
Goldman Sachs Nasdaq-100 Premium Income ETF GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, July 27th, 2026
1 Day
22.29%
decreased by 0.31%
1 Week
22.00%
decreased by 0.60%
1 Month
21.08%
decreased by 1.52%
Analysis last updated: Friday, July 24, 2026 at 09:52 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Oct 26, 2023 to Jul 24, 2026Model Insight
Volatility shocks decay with a half-life of 18 trading days, meaning a shock loses half its impact after approximately 18 days. Returns follow a Student-t distribution with v = 5.48 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 | 1.2812 | 4.16*** |
α ARCH Response to squared shocks | 0.1070 | 9.14*** |
β GARCH Volatility persistence | 0.9619 | 121.67*** |
ν DF Student-t tail thickness | 5.4824 | 2.74*** |
Persistence:
0.962
Half-life:
18 days
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