V-Lab
Franklin Ohio Municipal Income ETF Spline-GARCH Volatility Analysis
Volatility prediction for Wednesday, September 16th, 2026
1 Day
8.19%
increased by 0.01%
1 Week
8.59%
increased by 0.41%
1 Month
8.69%
increased by 0.51%
Analysis last updated: Wednesday, September 16, 2026 at 02:48 AM UTC
News Impact Curve
How returns affect tomorrow's volatilityVolatility Forecast
How volatility evolves over timeParameter Estimates
Nov 10, 2025 to Sep 11, 2026Model Insight
This model fits a time-varying baseline (a spline), so volatility mean-reverts toward a slowly-shifting long-run level rather than a constant.
τ
Spline-GARCH Model
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Time-varying baseline: volatility reverts to a slowly-shifting spline trend
| Param | Value | t-stat |
|---|---|---|
| ωconst | 0.8978 | 4.46*** |
| αARCH | 0.1203 | 1.70* |
| βGARCH | 0.0796 | 0.13 |
Spline Coefficients
K=3
| γ1 | 30.0742 | 2.72*** |
| γ2 | -57.8743 | -3.23*** |
| γ3 | 70.1295 | 3.42*** |
0.200
Persistence0d
Half-lifeτ
Spline-GARCH Model
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| Parameter | Value | t-statistic |
|---|---|---|
ω const Unconditional variance weight | 0.8978 | 4.46*** |
α ARCH Response to squared shocks | 0.1203 | 1.70* |
β GARCH Volatility persistence | 0.0796 | 0.13 |
Spline Coefficients
K=3
| γ1 | 30.0742 | 2.72*** |
| γ2 | -57.8743 | -3.23*** |
| γ3 | 70.1295 | 3.42*** |
Persistence:
0.200
Half-life:
0 days
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