V-Lab
PepsiCo Inc Zero Slope Spline-GARCH Volatility Analysis
Volatility prediction for Wednesday, August 26th, 2026
1 Day
20.40%
increased by 0.92%
1 Week
20.62%
increased by 1.14%
1 Month
21.20%
increased by 1.72%
Analysis last updated: Tuesday, August 25, 2026 at 09:29 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Aug 21, 2026Model Insight
This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant. Short-run deviations decay with a half-life of 11 trading days.
τ
Zero Slope Spline-GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 1.5003 | 8.30*** |
α ARCH Response to squared shocks | 0.0916 | 7.91*** |
β GARCH Volatility persistence | 0.8474 | 52.20*** |
Spline Coefficients
K=6
| γ1 | 0.0498 | 4.88*** |
| γ2 | -0.1010 | -6.61*** |
| γ3 | 0.0880 | 8.16*** |
| γ4 | -0.0521 | -4.68*** |
| γ5 | 0.0353 | 2.98*** |
| γ6 | -0.0325 | -3.73*** |
Persistence:
0.939
Half-life:
11 days
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