V-Lab
Schwab U.S. Mid-Cap ETF MEM Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
13.04%
increased by 0.17%
1 Week
13.69%
increased by 0.82%
1 Month
15.62%
increased by 2.75%
Analysis last updated: Friday, September 4, 2026 at 10:46 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 13, 2011 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 20 trading days, meaning a shock loses half its impact after approximately 20 days.
μ
MEM Model
Tap to view equation
Shock decay: Shocks decay with a 20-day half-life
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0586 | 2.98*** |
| αARCH | 0.3145 | 9.92*** |
| βGARCH | 0.6520 | 29.88*** |
0.967
Persistence20d
Half-lifeμ
MEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0586 | 2.98*** |
α ARCH Response to squared shocks | 0.3145 | 9.92*** |
β GARCH Volatility persistence | 0.6520 | 29.88*** |
Persistence:
0.967
Half-life:
20 days
Other Schwab U.S. Mid-Cap ETF Analyses
Other MEM Analyses on ETFs