V-Lab
McDonald's Corp APARCH Volatility Analysis
Volatility prediction for Monday, September 14th, 2026
1 Day
20.24%
1 Week
20.42%
1 Month
21.08%
Analysis last updated: Saturday, September 12, 2026 at 12:17 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 11, 2026Model Insight
This asset exhibits a strong leverage effect: negative returns increase next-day volatility 135% more than equivalent positive returns. The volatility power δ = 1.20 sits below 2, so large shocks influence volatility less than quadratically, a more outlier-robust response than standard GARCH.
APARCH Model
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| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0220 | 3.44*** |
| αARCH | 0.0634 | 8.46*** |
| βGARCH | 0.9366 | 113.30*** |
| γleverage | 0.3427 | 4.30*** |
| δpower | 1.1950 | 6.48*** |
0.989
Persistence62d
Half-lifeAPARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0220 | 3.44*** |
α ARCH Response to squared shocks | 0.0634 | 8.46*** |
β GARCH Volatility persistence | 0.9366 | 113.30*** |
γ leverage Additional response to negative shocks | 0.3427 | 4.30*** |
δ power Transformation power | 1.1950 | 6.48*** |
Persistence:
0.989
Half-life:
62 days
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