V-Lab
SLW Short Duration Income ETF GAS-GARCH Student T Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
1.11%
decreased by 0.04%
1 Week
1.12%
decreased by 0.03%
1 Month
1.16%
increased by 0.01%
Analysis last updated: Saturday, September 5, 2026 at 02:26 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 5, 2025 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 19 trading days, meaning a shock loses half its impact after approximately 19 days. Returns follow a Student-t distribution with v = 4.79 degrees of freedom, capturing fatter tails than a normal distribution.
𝑓
GAS-GARCH-T Model
Tap to view equation
Shock decay: Shocks decay with a 19-day half-lifev = 4.79 · fat tails
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0065 | 0.73 |
| αARCH | 0.0925 | 1.35 |
| βGARCH | 0.9637 | 22.18*** |
| νDF | 4.7852 | 0.65 |
0.964
Persistence19d
Half-life𝑓
GAS-GARCH-T Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0065 | 0.73 |
α ARCH Response to squared shocks | 0.0925 | 1.35 |
β GARCH Volatility persistence | 0.9637 | 22.18*** |
ν DF Student-t tail thickness | 4.7852 | 0.65 |
Persistence:
0.964
Half-life:
19 days
Other SLW Short Duration Income ETF Analyses
Other GAS-GARCH Student T Analyses on ETFs