V-Lab
PepsiCo Inc GARCH Volatility Analysis
Volatility prediction for Thursday, September 10th, 2026
1 Day
18.00%
increased by 0.21%
1 Week
18.09%
increased by 0.30%
1 Month
18.43%
increased by 0.64%
Analysis last updated: Wednesday, September 9, 2026 at 09:24 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Sep 4, 2026Model Insight
With persistence 0.995, volatility shocks have a half-life of 131 trading days (~0.5 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
σ
GARCH Model
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High persistence: persistence 0.995, shock half-life ~131 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0132 | 4.41*** |
| αARCH | 0.0605 | 9.31*** |
| βGARCH | 0.9343 | 148.32*** |
0.995
Persistence131d
Half-lifeσ
GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0132 | 4.41*** |
α ARCH Response to squared shocks | 0.0605 | 9.31*** |
β GARCH Volatility persistence | 0.9343 | 148.32*** |
Persistence:
0.995
Half-life:
131 days
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