V-Lab
Ballard Power Systems Inc Asy. MEM Volatility Analysis
Volatility prediction for Friday, September 4th, 2026
1 Day
47.44%
decreased by 1.70%
1 Week
49.43%
increased by 0.29%
1 Month
55.99%
increased by 6.85%
Analysis last updated: Thursday, September 3, 2026 at 09:07 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 8, 1995 to Aug 28, 2026Model Insight
Volatility shocks decay with a half-life of 41 trading days, meaning a shock loses half its impact after approximately 41 days.
μ
AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.5372 | 7.63*** |
α ARCH Response to squared shocks | 0.2305 | 9.21*** |
β GARCH Volatility persistence | 0.7747 | 56.74*** |
γ leverage Additional response to negative shocks | -0.0437 | -1.10 |
Persistence:
0.983
Half-life:
41 days
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