NiSource Inc Asy. MEM Volatility Analysis
Volatility prediction for Tuesday, July 21st, 2026
1 Day
21.53%
increased by 0.98%
1 Week
21.59%
increased by 1.04%
1 Month
21.80%
increased by 1.25%
Analysis last updated: Monday, July 20, 2026 at 09:48 PM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Jan 2, 1990 to Jul 17, 2026Model Insight
This asset exhibits a modest leverage effect: negative returns increase next-day volatility 41% more than equivalent positive returns.
μ
AMEM Model
Tap to view equation
| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.0378 | 27.24*** |
α ARCH Response to squared shocks | 0.1276 | 38.66*** |
β GARCH Volatility persistence | 0.8282 | 329.85*** |
γ leverage Additional response to negative shocks | 0.0528 | 8.15*** |
Persistence:
0.982
Half-life:
39 days
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