Matsuda Sangyo Co Ltd MEM Volatility Analysis
Volatility prediction for Friday, October 16th, 2026
1 Day
45.57%
increased by 1.40%
1 Week
45.67%
increased by 1.50%
1 Month
46.10%
increased by 1.93%
Analysis last updated: Friday, October 16, 2026 at 08:15 PM UTC
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News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Aug 28, 1995 to Oct 9, 2026Model Insight
With persistence 1.000, volatility shocks have a half-life of 1547 trading days (~6.1 years), close to a unit root, so long-run forecasts are highly sensitive to this estimate.
μ
MEM Model
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High persistence: persistence 1.000, shock half-life ~1547 days
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.0230 | 1.37 |
| αARCH | 0.0774 | 6.30*** |
| βGARCH | 0.9222 | 58.90*** |
1.000
Persistence1547d
Half-lifeμ
MEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0230 | 1.37 |
α ARCH Response to squared shocks | 0.0774 | 6.30*** |
β GARCH Volatility persistence | 0.9222 | 58.90*** |
Persistence:
1.000
Half-life:
1547 days
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