V-Lab
Japanese Yen GARCH Volatility Analysis
Volatility prediction for Wednesday, August 26th, 2026
1 Day
6.96%
decreased by 0.08%
1 Week
6.99%
decreased by 0.05%
1 Month
7.09%
increased by 0.05%
Analysis last updated: Tuesday, August 25, 2026 at 07:54 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
With persistence 0.994, volatility shocks have a half-life of 108 trading days (~0.4 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
σ
GARCH Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0020 | 17.49*** |
α ARCH Response to squared shocks | 0.0378 | 34.80*** |
β GARCH Volatility persistence | 0.9558 | 793.84*** |
Persistence:
0.994
Half-life:
108 days
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