QVC Group Inc EGARCH Volatility Analysis
Volatility prediction for Monday, July 13th, 2026
1 Day
241.17%
increased by 4.05%
1 Week
240.68%
increased by 3.56%
1 Month
238.77%
increased by 1.65%
Analysis last updated: Saturday, July 11, 2026 at 09:27 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
May 5, 2006 to Jul 10, 2026Model Insight
With persistence 0.998, volatility shocks have a half-life of 452 trading days (~1.8 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
Asymmetry: Negative shocks have larger impact on volatility (leverage effect)
σ
EGARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0063 | 1.88* |
α ARCH Response to squared shocks | 0.0277 | 12.53*** |
β GARCH Volatility persistence | 0.9985 | 1,347.46*** |
γ leverage Additional response to negative shocks | -0.0493 | -25.47*** |
Persistence:
0.998
Half-life:
452 days
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