V-Lab
Russell 1000 Value Index GARCH Volatility Analysis
Volatility prediction for Tuesday, September 8th, 2026
1 Day
10.61%
increased by 0.27%
1 Week
10.94%
increased by 0.60%
1 Month
12.02%
increased by 1.68%
Analysis last updated: Saturday, September 5, 2026 at 12:05 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 12, 2000 to Sep 4, 2026Model Insight
Volatility shocks decay with a half-life of 32 trading days, meaning a shock loses half its impact after approximately 32 days.
σ
GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0239 | 5.29*** |
α ARCH Response to squared shocks | 0.1143 | 8.81*** |
β GARCH Volatility persistence | 0.8645 | 64.79*** |
Persistence:
0.979
Half-life:
32 days
Other Russell 1000 Value Index Analyses
Other GARCH Analyses on Equity Indices