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V-Lab

Ballard Power Systems Inc EGARCH Volatility Analysis

Volatility prediction for Thursday, August 6th, 2026

1 Day

78.51%

decreased by 1.75%

1 Week

78.06%

decreased by 2.20%

1 Month

77.04%

decreased by 3.22%

Analysis last updated: Wednesday, August 5, 2026 at 09:06 PM UTC

Date Range:

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to

6M ·

1Y ·

2Y ·

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10Y ·

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graph of Ballard Power Systems Inc EGARCH

News Impact Curve

How returns affect tomorrow's volatility

Volatility Forecast

How volatility evolves over time

Parameter Estimates

Nov 8, 1995 to Jul 31, 2026

Model Insight

This asset shows a rare inverse leverage effect: positive returns raise next-day volatility 18% more than negative returns. Volatility rises more after gains than after losses, the reverse of the usual leverage effect and uncommon among risky assets.

σ

EGARCH Model

Tap to view equation

ParameterValuet-statistic
ω

const

Unconditional variance weight

0.2690
19.68***
α

ARCH

Response to squared shocks

0.2796
26.34***
β

GARCH

Volatility persistence

0.9139
204.05***
γ

leverage

Additional response to negative shocks

0.0228
2.57**

Persistence:

0.914

Half-life:

8 days