State Street Health Care Select Sector SPDR ETF GAS-GARCH Student T Volatility Analysis
Volatility prediction for Monday, April 20th, 2026
1 Day
17.34%
increased by 1.36%
1 Week
17.36%
increased by 1.38%
1 Month
17.41%
increased by 1.43%
Analysis last updated: Friday, April 17, 2026 at 10:40 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
| param | t-stat | |
|---|---|---|
| 1.2485 | 8.16 | |
| 0.0886 | 30.97 | |
| 0.9819 | 391.66 | |
| 7.5189 | 5.43 |
Estimation Period:
Dec 22, 1998 to Apr 17, 2026
Dec 22, 1998 to Apr 17, 2026
Other State Street Health Care Select Sector SPDR ETF Analyses
Other GAS-GARCH Student T Analyses on ETFs