iShares Semiconductor ETF GJR-GARCH Volatility Analysis
Volatility prediction for Tuesday, October 27th, 2026
1 Day
49.12%
decreased by 1.24%
1 Week
48.82%
decreased by 1.54%
1 Month
47.69%
decreased by 2.67%
Analysis last updated: Monday, October 26, 2026 at 09:28 PM UTC
Press Delete or Backspace to remove this series.
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jul 13, 2001 to Oct 23, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 219% more than equivalent positive returns.
σ
GJR-GARCH Model
Tap to view equation
Leverage: Negative returns increase volatility 219% more than positive returns
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0477 | 4.01*** |
| αARCH | 0.0323 | 2.77*** |
| βGARCH | 0.9212 | 105.28*** |
| γleverage | 0.0707 | 3.28*** |
0.989
Persistence62d
Half-lifeσ
GJR-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0477 | 4.01*** |
α ARCH Response to squared shocks | 0.0323 | 2.77*** |
β GARCH Volatility persistence | 0.9212 | 105.28*** |
γ leverage Additional response to negative shocks | 0.0707 | 3.28*** |
Persistence:
0.989
Half-life:
62 days
Other iShares Semiconductor ETF Analyses
Other GJR-GARCH Analyses on ETFs